Comprising Aromatic, Heteroaromatic, Or Arrylic Chains (e.g., Polyaniline, Polyphenylene, Polyphenylene Vinylene) (epo) Patents (Class 257/E51.028)
  • Patent number: 7915609
    Abstract: According to the present invention, a liquid crystal semiconductor capable of exhibiting a highly ordered smectic phase at approximately room temperature, being used for formation of a smectic liquid crystal thin film that is stable at room temperature by a solution process, and showing excellent ambipolar charge-transporting properties, a thin film transistor comprising the same, and the like are provided. Also, the following are provided: a smectic liquid crystal compound represented by the following general formula (1) wherein R1 represents a straight-chain alkyl group having 1 to 8 carbon atoms, R2 represents an alkyl or alkoxy group having 1 to 8 carbon atoms, and “n” is an integer of 0 to 3; an ambipolar charge-transporting material comprising the smectic liquid crystal compound; an organic semiconductor thin film having a thin film layer comprising the smectic liquid crystal compound; and a thin film transistor comprising the organic semiconductor thin film.
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: March 29, 2011
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Masahiro Funahashi, Fuxapei Chan, Nobuyuki Tamaoki
  • Publication number: 20110062429
    Abstract: Disclosed is an organic electroluminescent device (organic EL device) that is improved in the luminous efficiency, fully secured of the driving stability, and of a simple structure and also disclosed is a compound for organic EL device useful for the said device. The compound for organic EL device is, for example, an indolocarbazole derivative represented by the following general formula (3). The organic EL device comprises a light-emitting layer disposed between an anode and a cathode piled one upon another on a substrate and the said light-emitting layer comprises a phosphorescent dopant and the aforementioned indolocarbazole derivative as a host material. In general formula (3), L is an aromatic heterocyclic group of a fused-ring structure with a valence of (n+1), Ar1 to Ar3 each is an alkyl group, an aralkyl group, or a substituted or unsubstituted aromatic hydrocarbon or aromatic heterocyclic group, and n is an integer of 0-5.
    Type: Application
    Filed: April 30, 2009
    Publication date: March 17, 2011
    Inventors: Takahiro Kai, Masaki Komori, Toshihiro Yamamoto
  • Patent number: 7906224
    Abstract: An organic electroluminescent element comprising a cathode and an anode having therebetween at least one organic compound layer, wherein one of the organic compound layer comprises a polymer having a repeat unit represented by Formula (1) (wherein Ar1 represents an arylene group which may have a substituent or a heteroarylene group having not more than two heteroatoms, which may have a substituent; and L1 represents a divalent linkage group selected from a prescribed group; and n1 represents an integer of not less than two).
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: March 15, 2011
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hideo Taka, Hiroshi Kita
  • Patent number: 7897963
    Abstract: Provided are an organic semiconductor compound using thiazole, and an organic thin film transistor having an organic semiconductor layer formed of the organic semiconductor compound using thiazole. The novel organic semiconductor compound including thiazole has liquid crystallinity and excellent thermal stability, and thus is provided to form an organic semiconductor layer in the organic thin film transistor. To this end, a silicon oxide layer is formed on a silicon substrate, and an organic semiconductor layer including thiazole is formed on the silicon oxide layer. In addition, source and drain electrodes are formed on both edge portions of the organic semiconductor layer. The organic thin film transistor using the organic semiconductor layer has an improved on/off ratio and excellent thermal stability. Also, a solution process can be applied in its manufacture.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: March 1, 2011
    Assignee: Gwangju Institute of Science and Technology
    Inventors: Dong-Yu Kim, Bogyu Lim, Kang-Jun Baeg, Hyung-Gu Jeong, Seung-Hwan Oh, Hong-Ju Park
  • Patent number: 7893429
    Abstract: Disclosed is organic diode which is capable of light emitting display by an organic EL display, image sensing by a organic photodiode and power generation by an organic solar cell. Also disclosed is a matrix panel of such a multifunction organic diode. Specifically disclosed is a multifunction organic diode comprising a first electrode (12) formed on a substrate (11), an organic thin film (13) formed on the first electrode (12) and having both light emitting and photoconductive properties, and a second electrode (14) formed on the organic thin film (13).
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: February 22, 2011
    Assignee: National University Corporation University of Toyama
    Inventors: Hiroyuki Okada, Shigeki Naka, Hiroyoshi Onnagawa
  • Publication number: 20110037055
    Abstract: A flexible optoelectronic device having inverted electrode structure is disclosed. The flexible optoelectronic device having inverted electrode structure includes a flexible plastic substrate having a cathode structure, an n-type oxide semiconductor layer, an organic layer, and an anode. The n-type oxide semiconductor layer is disposed on the cathode structure. The organic layer is disposed on the n-type oxide semiconductor layer. The anode is electrically connected with the organic layer.
    Type: Application
    Filed: November 4, 2009
    Publication date: February 17, 2011
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: CHING-FUH LIN, KAO-HUA TSAI
  • Publication number: 20110024729
    Abstract: Solution-processable dielectric materials are provided, along with precursor compositions and processes for preparing the same. Composites and electronic devices including the dielectric materials also are provided.
    Type: Application
    Filed: April 20, 2010
    Publication date: February 3, 2011
    Inventors: Tobin J. Marks, Antonio Facchetti, Zhiming Wang, Hyuk-Jin Choi, Nae-Jeong Suh
  • Publication number: 20110014744
    Abstract: Disclosed herein are organic memory devices and methods for fabricating such devices. The organic memory devices comprise a first electrode, a second electrode and an organic active layer extending between the first and second electrodes wherein the organic active layer is formed from one or more electrically conductive organic materials that contain heteroatoms and which are configured in such a manner as that the heteroatoms are available for linking or complexing metal atoms within the organic active layer. The metal ions may then be reduced to form metal filaments within the organic active layer to form a low resistance state and the metal filaments may, in turn, be oxidized to form a high resistance state and thereby function as memory devices.
    Type: Application
    Filed: September 27, 2010
    Publication date: January 20, 2011
    Inventors: Won Jae JOO, Tae Lim CHOI, Jae Ho LEE
  • Publication number: 20110008929
    Abstract: A method for forming an electronic device having a semiconducting active layer comprising a polymer, the method comprising aligning the chains of the polymer parallel to each other by bringing the polymer into a liquid-crystalline phase.
    Type: Application
    Filed: September 22, 2010
    Publication date: January 13, 2011
    Applicant: CAMBRIDGE UNIVERSITY TECHNICAL SERVICES LIMITED
    Inventors: Henning SIRRINGHAUS, Richard Henry FRIEND, Richard John WILSON
  • Patent number: 7868322
    Abstract: Disclosed is a method for fabricating an organic thin film transistor by oxidation and selective reduction of an organic semiconductor material. According to the method, stability of interfaces between a semiconductor layer and source/drain electrodes of an organic thin film transistor may be guaranteed. Therefore, an organic thin film transistor fabricated by the method may exhibit improved performance characteristics, e.g., minimized or decreased contact resistance and increased charge carrier mobility.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: January 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do Hwan Kim, Jung Seok Hahn, Sang Yoon Lee, Bon Won Koo
  • Publication number: 20110001134
    Abstract: An excellent composition for a charge-transport film, which can be used to produce an organic electroluminescence device having excellent heat-resistant property, high hole injection/transport capacity and capable of functioning at a low voltage, is proposed. It comprises at least an ionic compound expressed by the following general formula (1) or the like and a charge-transporting compound, (R11-A1+-R12)n1Z1n1???(1) wherein in general formula (1): R11 represents an organic group bound to A1 via a carbon atom; R12 represents an arbitrary group; R11 and R12 may combine together to form a ring; A1 represents an element belonging to the third and subsequent periods and group 17 of the long form periodic table; Z1n1? represents a counter anion; and n1 represents an ionic valency of the counter anion.
    Type: Application
    Filed: September 15, 2010
    Publication date: January 6, 2011
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Koichiro IIDA, Tomoyuki Ogata, Asato Tanaka
  • Publication number: 20100327272
    Abstract: An LCD device and a method for fabricating the same is disclosed that improves a yield by decreasing processing time. The LCD device includes gate and data lines formed substantially perpendicular to each other on a substrate and defining a unit pixel region; a thin film transistor formed at a crossing of the gate and data lines; an active layer formed over the gate line, the data line, and the thin film transistor; an organic resin formed on a portion of a gate insulating layer not including the gate line, the data line, and the thin film transistor; a passivation layer formed on an entire surface of the substrate including the thin film transistor; and a pixel electrode, formed in the unit pixel region, the pixel electrode being connected with a drain electrode of the thin film transistor.
    Type: Application
    Filed: September 8, 2010
    Publication date: December 30, 2010
    Inventor: Gee Sung Chae
  • Publication number: 20100308320
    Abstract: It is an object of the present invention to provide a functional layer for protecting a light emitting element from being deteriorated by a physical or chemical influence when the light emitting element is manufactured or driven, and to attain extension of lifetime of an element and improvement of element characteristics without increasing a drive voltage and degrading transmittance and color purity by providing such a functional layer. One feature of the present invention is to provide a buffer layer made of a composite material for a light emitting element including aromatic hydrocarbon containing at least one vinyl skeleton and metal oxide in part of a light emitting substance containing layer, in the light emitting element fowled by interposing the light emitting substance containing layer between a pair of electrodes. The composite material for a light emitting element for forming the buffer layer of the present invention has high conductivity and is superior in transparency.
    Type: Application
    Filed: August 20, 2010
    Publication date: December 9, 2010
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Takahiro KAWAKAMI, Tomoya AOYAMA, Junichiro SAKATA, Hisao IKEDA, Satoshi SEO, Yuji IWAKI
  • Patent number: 7847284
    Abstract: There are provided an organic semiconductor material, which can constitute an organic semiconductor layer having homogeneous and a high level of charge transfer characteristics over a large area, and an organic semiconductor structure and an organic semiconductor device utilizing the organic semiconductor material. The organic semiconductor material comprises a polymeric compound and a monomeric compound, the polymeric compound having, in a part of its side chain, a core structure comprising a predetermined ? electron ring, the monomeric compound having a core structure comprising a predetermined ? electron ring, the monomeric compound having, in at least one of its both ends, a terminal group capable of developing liquid crystallinity.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: December 7, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Jun-Ichi Hanna, Teppei Shimakawa, Masanori Akada, Hiroki Maeda
  • Publication number: 20100301316
    Abstract: An object is to provide a light-emitting element in which suppression of a drive voltage increase is achieved. Another object is to provide a light-emitting device that has reduced power consumption by including such a light-emitting element. In a light-emitting element having an EL layer between an anode and a cathode, between the cathode and the EL layer, a first layer capable of carrier generation is formed in contact with the cathode, a second layer which accepts and transports the electrons generated in the first layer is formed in contact with the first layer, and a third layer which injects the electrons accepted from the second layer into the EL layer is formed in contact with the second layer.
    Type: Application
    Filed: May 24, 2010
    Publication date: December 2, 2010
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Hiromi NOWATARI, Satoshi SEO, Nobuharu OHSAWA, Tetsuo TSUTSUI
  • Publication number: 20100301317
    Abstract: An object is to provide a light-emitting element capable of emitting light with a high luminance even at a low voltage, and having a long lifetime. The light-emitting element includes n EL layers between an anode and a cathode (n is a natural number of two or more), and also includes, between m-th EL layer from the anode and (m+1)-th EL layer (m is a natural number, 1?m?n?1), a first layer including a first donor material in contact with the m-th EL layer, a second layer including an electron-transport material and a second donor material in contact with the first layer, and a third layer including a hole-transport material and an acceptor material in contact with the second layer and the (m+1)-th EL layer.
    Type: Application
    Filed: May 24, 2010
    Publication date: December 2, 2010
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Hiromi NOWATARI, Satoshi SEO, Nobuharu OHSAWA, Takahiro USHIKUBO, Tetsuo TSUTSUI
  • Patent number: 7834346
    Abstract: Provided are a nitrogen-containing heterocyclic derivative having a specific structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer contains the nitrogen-containing heterocyclic derivative described above in the form of a single component or a mixed component, and thus provided are the organic electroluminescence device which emits blue light having a high light emitting luminance and a high current efficiency and the novel nitrogen-containing heterocyclic derivative which materializes the same.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: November 16, 2010
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Chishio Hosokawa, Hiroshi Yamamoto, Takashi Arakane
  • Patent number: 7829373
    Abstract: Disclosed herein is an organic polymer semiconductor compound, a method of forming an organic polymer semiconductor thin film using the same, and an organic thin film transistor using the same. Example embodiments of this invention pertain to an organic polymer semiconductor having a side chain including a removable substituent, and to an organic thin film transistor using the organic polymer semiconductor for an organic active layer, which has lower leakage current, higher charge mobility, and/or a higher on/off ratio.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: November 9, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun Kyung Lee, Joo Young Kim, Bang Lin Lee, Sang-Yoon Lee, Eun Jeong Jeong
  • Publication number: 20100252824
    Abstract: This invention is generally related to a method of making a molecule-surface interface comprising at least one surface comprising at least one material and at least one organic group wherein the organic group is adjoined to the surface and the method comprises contacting at least one organic group precursor with at least one surface wherein the organic group precursor is capable of reacting with the surface in a manner sufficient to adjoin the organic group and the surface. The present invention is directed to hybrid molecular electronic devices having a molecule-surface interface. Such hybrid molecular electronic devices may advantageously have either a top or bottom gate electrode for modifying a conductivity of the devices.
    Type: Application
    Filed: April 5, 2010
    Publication date: October 7, 2010
    Applicant: WILLIAM MARSH RICE UNIVERSITY
    Inventors: James M. Tour, Michael P. Stewart, Jianli He, Harrry F. Pang
  • Publication number: 20100237327
    Abstract: According to the present invention, a liquid crystal semiconductor capable of exhibiting a highly ordered smectic phase at approximately room temperature, being used for formation of a smectic liquid crystal thin film that is stable at room temperature by a solution process, and showing excellent ambipolar charge-transporting properties, a thin film transistor comprising the same, and the like are provided. Also, the following are provided: a smectic liquid crystal compound represented by the following general formula (1) wherein R1 represents a straight-chain alkyl group having 1 to 8 carbon atoms, R2 represents an alkyl or alkoxy group having 1 to 8 carbon atoms, and “n” is an integer of 0 to 3; an ambipolar charge-transporting material comprising the smectic liquid crystal compound; an organic semiconductor thin film having a thin film layer comprising the smectic liquid crystal compound; and a thin film transistor comprising the organic semiconductor thin film.
    Type: Application
    Filed: June 5, 2007
    Publication date: September 23, 2010
    Applicant: NAT. INSTIUTE OF ADV. INDUSTRIAL SCI. AND TECH.
    Inventors: Masahiro Funahashi, Fuxapei Chan, Nobuyuki Tamaoki
  • Patent number: 7800103
    Abstract: An objective is to provide an organic thin film transistor material exhibiting an excellent property as a transistor together with reduced aging degradation, and also to provide an organic thin film transistor, a field-effect transistor, a switching element, an organic semiconductor material and an organic semiconductor film employing the organic thin film transistor material. Disclosed is an organic thin film transistor material possessing a compound represented by the following Formula (1). where A composed of a condensed ring formed with a 6 membered aromatic cycle or a 6 membered aromatic heterocycle represents C—R, N or P; at least one of As is N or P; R represents a hydrogen atom, a halogen atom or a substituent; and R may be bonded with other Rs with each other to form a ring.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: September 21, 2010
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Rie Katakura, Hiroshi Kita, Katsura Hirai, Tatsuo Tanaka
  • Patent number: 7800102
    Abstract: The organic TFT includes: a gate electrode; source and drain electrodes insulated from the gate electrode; an organic semiconductor layer insulated from the gate electrode and electrically connected to the source and drain electrodes; an insulating layer insulating the gate electrode from the source and drain electrodes and the organic semiconductor layer; and a self-assembly monolayer (SAM) included between the insulating layer and the organic semiconductor layer. A compound forming the SAM has at least one terminal group selected from the group consisting of an unsubstituted or substituted C6-C30 aryl group and an unsubstituted or substituted C2-C30 heteroaryl group. The organic TFT is formed by forming the above-described layers and forming the SAM on the insulating layer before the organic semiconductor layer and source and drain electrodes are formed.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: September 21, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Seong Park, Taek Ahn, Min-Chul Suh
  • Publication number: 20100221850
    Abstract: Embodiments of the present invention relate to semiconducting carbon-containing devices and methods of making thereof. The semi-conducting carbon containing devices comprise an n-type semiconducting layer and a p-type semiconducting layer, both of which are positioned over a substrate. The n-type semiconducting layer can be formed by pyrolyzing a carbon- and nitrogen-containing polymer, and the p-type semiconducting layer can be formed by pyrolyzing an aromatic- and aliphatic-group-containing polymer. In some embodiments, the devices are solar cell devices.
    Type: Application
    Filed: April 2, 2010
    Publication date: September 2, 2010
    Applicant: Nitto Denko Corporation
    Inventors: Amane Mochizuki, Toshitaka Nakamura, Masakatsu Urairi, Guang Pan
  • Publication number: 20100213451
    Abstract: The present invention relates to a class of luminescent and conductive polymer compositions having chromophores, and particularly solid films of these compositions exhibiting increased luminescent lifetimes, quantum yields and amplified emissions. These desirable properties can be provided through polymers having rigid groups designed to prevent polymer reorganization, aggregation or ?-stacking upon solidification. These polymers can also display an unusually high stability with respect to solvent and heat exposures. The invention also relates to a sensor and a method for sensing an analyte through the luminescent and conductive properties of these polymers. Analytes can be sensed by activation of a chromophore at a polymer surface. Analytes include aromatics, phosphate ester groups and in particular explosives and chemical warfare agents in a gaseous state.
    Type: Application
    Filed: January 26, 2010
    Publication date: August 26, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Timothy M. Swager, Jye-Shane Yang, Vance Williams, Yi-Jun Miao, Claus G. Lugmair, Igor A. Levitsky, Jinsang Kim, Robert Deans
  • Patent number: 7772360
    Abstract: A polymer compound comprising at least one repeating unit selected from the group of repeating units shown by formula (1) or formula (2), wherein Ar1 to Ar4 represent an arylene group etc.; E1, E2, and E3 represent an aryl group (A) having three or more substituents, or a heterocyclic group (B) having one or more substituents, and the total number of substituents and hetero atoms of the heterocyclic ring is three or more; a and b represent 0 or 1, and 0<=a+b<=1, wherein Ar5 to Ar10 and Ar11 represent an arylene group etc.; E4 to E9 represent an aryl group or a monovalent heterocyclic group; l, m and n represent 0 to 2; o and p represent 0 or 1, and l+m+n+o+p is 2 or more.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: August 10, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Makoto Kitano, Yoshiaki Tsubata, Chizu Sekine, Jun Oguma, Katsumi Agata, Akihiro Ono, Akiko Nakazono
  • Patent number: 7768001
    Abstract: An off-current is reduced in an organic transistor, with which an organic transistor array is formed. A display apparatus is constructed using the organic transistor array. The organic transistor includes a substrate, a gate electrode, a separating electrode, a gate insulating film, a source electrode, a drain electrode, and an organic semiconductor layer. The organic transistor has a region in which the separating electrode and the organic semiconductor layer are laminated. A power supply is connected to the separating electrode.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: August 3, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Takumi Yamaga, Ikue Kawashima, Yoshinobu Nakayama
  • Publication number: 20100181555
    Abstract: A material for an organic electroluminescent device including an imine derivative represented by the following formula (Ia) or (Ib), wherein Y1 to Y4 are independently a carbon atom or a nitrogen atom; R1 to R4 are independently hydrogen, an alkyl group, an aryl group, a heterocycle, a halogen atom, a fluoroalkyl group or a cyano group; and R1 and R2, or R3 and R4 may be bonded together to form a ring.
    Type: Application
    Filed: May 21, 2007
    Publication date: July 22, 2010
    Applicants: IDEMITSU KOSAN CO., LTD., SONY CORPORATION
    Inventors: Chishio Hosokawa, Hironobu Morishita, Tadahiko Yoshinaga, Yasunori Kijima
  • Publication number: 20100181560
    Abstract: An organic electroluminescent element includes an electron-transport layer composed of a heterocyclic compound, a negative electrode composed of a metal material, and a transition-metal-complex layer arranged between the electron-transport layer and the negative electrode.
    Type: Application
    Filed: January 12, 2010
    Publication date: July 22, 2010
    Applicant: SONY CORPORATION
    Inventors: Emiko Kambe, Ichinori Takada, Yasunori Kijima
  • Patent number: 7750341
    Abstract: An electrically bistable body for use in electronic devices wherein the bistable body is converted from a low conductivity state to a high conductivity state. The bistable body includes a polymer matrix in which a sufficient amount of capped nanoparticles are dispersed so that the bistable body is converted from a low conductivity state to a high conductivity state upon application of an electrical field. The capped nanoparticles are metal nanoparticles that have been coated with an aromatic thiol.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: July 6, 2010
    Assignee: The Regents of the University of California
    Inventors: Yang Yang, Jianyong Ouyang
  • Publication number: 20100163853
    Abstract: An organic electroluminescent device including an emitting layer, an electron-injecting controlling layer and an electron-transporting layer between an anode and a cathode in sequential order from the anode, bonding one to another, the emitting layer including a host material and a dopant, the ionization potential (Ips) of the main material forming the electron-injecting controlling layer and the ionization potential (Iph) of the host material of the emitting layer satisfying the following relationship (i), the electron mobility of the electron-transporting material forming the electron-transporting layer being 10?5 cm2/Vs or more at the electric field intensity of 400 to 500 (V/cm)1/2, and the affinity level (Af1) of the host material of the emitting layer, the affinity level (Af2) of the main material forming the electron-injecting controlling layer, and the affinity level (Af3) of the electron-transporting material forming the electron-transporting layer satisfying the following relationships (ii) and (iii
    Type: Application
    Filed: June 3, 2009
    Publication date: July 1, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Toshinari OGIWARA, Kazuki NISHIMURA, Toshihiro IWAKUMA
  • Patent number: 7741635
    Abstract: Provided are a composition for an organic polymer gate insulating layer and an Organic Thin Film Transistor (OTFT) using the same. The composition includes an insulating organic polymer including at least one selected from the group consisting of polymethylmethacrylate (PMMA), polyvinylalcohol (PVA), polyvinylpyrrolidone (PVP), poly(vinyl phenol) (PVPh) and a copolymer thereof, a crosslinking monomer having two or more double bonds, and a photoinitiator. The OTFT includes a gate insulating layer of a semi-interpenetrating polymer network formed of the composition. The composition for a photoreactive organic polymer gate insulating layer has a photochemical characteristic that enables micropatterning, and can be formed into a layer having excellent chemical resistance, thermal resistance, surface characteristics and electrical characteristics.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: June 22, 2010
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seong Hyun Kim, Sang Chul Lim, Gi Heon Kim, Ji Ho Youk, Tae Gon Kim
  • Patent number: 7732808
    Abstract: A light-emitting element is disclosed that can drive at a low driving voltage and that has a longer lifetime than the conventional light-emitting element, and a method is disclosed for manufacturing the light-emitting element. The disclosed light-emitting element includes a plurality of layers between a pair of electrodes; and at least one layer among the plurality of layers contains one compound selected from the group consisting of oxide semiconductor and a metal oxide, and a compound having high hole transportation properties. Such the light-emitting element can suppress the crystallization of a layer containing one compound selected from the group consisting of oxide semiconductor and a metal oxide, and a compound having high hole transportation properties. As a result, a lifetime of the light-emitting element can be extended.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: June 8, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd
    Inventors: Hisao Ikeda, Junichiro Sakata
  • Publication number: 20100133997
    Abstract: A polymer compound comprising at least one repeating unit selected from the group of repeating units shown by formula (1) or formula (2), wherein Ar1 to Ar4 represent an arylene group etc.; E1, E2, and E3 represent an aryl group (A) having three or more substituents, or a heterocyclic group (B) having one or more substituents, and the total number of substituents and hetero atoms of the heterocyclic ring is three or more; a and b represent 0 or 1, and 0<=a+b<=1, wherein Ar5 to Ar10 and Ar11 represent an arylene group etc.; E4 to E9 represent an aryl group or a monovalent heterocyclic group; l, m and n represent 0 to 2; o and p represent 0 or 1, and l+m+n+o+p is 2 or more.
    Type: Application
    Filed: February 3, 2010
    Publication date: June 3, 2010
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Makoto KITANO, Yoshiaki Tsubata, Chizu Sekine, Jun Oguma, Katsumi Agata, Akihiro Ono, Akiko Nakazono
  • Patent number: 7719000
    Abstract: Disclosed are organic semiconductor materials, including mixtures of relatively low molecular weight aromatic ring compounds, in which at least one nitrogen atom or oxygen atom is present as a heteroatom in the aromatic ring compounds for forming hydrogen bonds between the heteroatom(s) and adjacent molecules and thereby increase intermolecular stacking. Organic semiconductor layers formed using such organic semiconductor materials will, accordingly, exhibit increased intermolecular stacking and associated improvements in one or more electrical properties of the semiconductor layer. Organic thin film transistors incorporating such organic semiconductor layers will tend to exhibit improved transistor properties including, for example, increased carrier mobility and reduced off-state leakage current. Further, the organic semiconductor layers may be manufactured using conventional room temperature processes, for example, spin coating or printing, thereby simplifying the fabrication process.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: May 18, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun Jeong Jeong, Bang Lin Lee
  • Patent number: 7719002
    Abstract: Disclosed herein are a perfluoroalkyleneoxy group-substituted phenylethylsilane compound and a polymer thereof. The perfluoroalkyleneoxy group-substituted phenylethylsilane compound represented by Formula 1 has excellent thermal and chemical stability to be solution-processed in a monomer state, and the polymer prepared by thermally crosslinking the compound has a high resistance to organic solvents. Moreover, since an insulating layer prepared by applying the same shows improved thermal and physical properties, it is possible to manufacture organic thin-film transistors having a high on/off ratio in a simple process such as a photolithography for a large-size substrate: wherein R1, R2, R3, Z1, Z2, Z3, and n are the same as defined in the detailed description of the invention.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: May 18, 2010
    Assignee: Gwangju Institute of Science and Technology
    Inventors: Dong-Yu Kim, Ji-Eun Ghim, Chae-Min Chun, Bo-Gyu Lim
  • Patent number: 7714320
    Abstract: A composition comprising a plurality of molecules. Each of the molecules has a core comprising at least one aromatic ring and at least three pendant arms chemically bonded to the core. The pendant arms comprise a phenylene-terminated thiophene oligomer.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: May 11, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Ashok J. Maliakal, Ming L. Tang
  • Publication number: 20100109555
    Abstract: An aromatic amine compound is represented by general formula [I]: wherein X1 and X2 each represent a group selected from an alkyl group, an aryl group, an allyl group, an alkoxy group, and an aryloxy group, X1 and X2 may be the same or different, Ar1 and Ar2 each represent an arylene group, n?1, at least one of substituents Y is a substituent selected from a trifluoromethyl group, a cyano group, and a halogen group, and other substituents Y are groups each selected from a hydro group, an alkyl group, an aryl group, an allyl group, an alkoxy group, and an aryloxy group.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 6, 2010
    Applicant: SONY CORPORATION
    Inventors: Mari Ichimura, Yoshihisa Miyabayashi
  • Publication number: 20100096627
    Abstract: A light-emitting element is disclosed that can drive at a low driving voltage and that has a longer lifetime than the conventional light-emitting element, and a method is disclosed for manufacturing the light-emitting element. The disclosed light-emitting element includes a plurality of layers between a pair of electrodes; and at least one layer among the plurality of layers contains one compound selected from the group consisting of oxide semiconductor and a metal oxide, and a compound having high hole transportation properties. Such the light-emitting element can suppress the crystallization of a layer containing one compound selected from the group consisting of oxide semiconductor and a metal oxide, and a compound having high hole transportation properties. As a result, a lifetime of the light-emitting element can be extended.
    Type: Application
    Filed: December 28, 2009
    Publication date: April 22, 2010
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Hisao IKEDA, Junichiro SAKATA
  • Patent number: 7682708
    Abstract: A compound of formula (I), where x is 3, 2 or 1, y is 0 or 1, n1 and n2, which may be the same or different, are 0 or 1 to 3, X represents a divalent mono- or poly-aromatic and/or heteroaromatic moiety, the or each Y, which may be the same or different if x is 1, represents hydrogen or an optionally substituted hydrocarbon group, Z represents an aromatic group, or an inherently at least partly conjugated dendritic molecular structure comprising one or more aromatic and/or heteroaromatic groups and, optionally, alkenylene groups, connected to each other either directly or via a carbon atom of an alkenylene group, if present, to a ring carbon atom of an (hetero) aromatic group to which more than one at least partly conjugated dendritic chain is attached, said molecular structure being connected to the remainder of the molecule via a ring carbon atom, one or more of the (hetero) aromatic rings of the dendrimers optionally being substituted, Z and/or the remainder of the molecule, excluding any groups Y, bein
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: March 23, 2010
    Assignee: ISIS Innovation Limited
    Inventors: Paul Leslie Burn, Ifor David William Samuel, John Mark Lupton, Richard Beavington
  • Patent number: 7671272
    Abstract: Disclosed herein is a material, and a solid electrolyte and a photovoltaic device using the same. When the material is used as a hole transporting layer material of the photovoltaic device, the reduction of an electrolytic layer resulting from leakage or volatilization of an electrolytic solution is prevented, thus the battery characteristics, long-term stability, and reliability of the photovoltaic device are improved.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: March 2, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung Hee Sohn, Sang Cheol Park, Jung Gyu Nam
  • Publication number: 20090302311
    Abstract: The present invention relates to polymers comprising a repeating unit of the formula (I) and their use as organic semiconductor in organic devices, especially a diode, an organic field effect transistor and/or a solar cell, or a device containing a diode and/or an organic field effect transistor, and/or a solar cell. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in semiconductor devices or organic photovoltaic (PV) devices (solar cells).
    Type: Application
    Filed: June 20, 2007
    Publication date: December 10, 2009
    Inventors: Mathieu G.R. Turbiez, René Albert Johan Janssen, Martinus Maria Wienk, Hans Jürg Kirner, Mathias Düggeli, Bernd Tieke, Yu Zhu
  • Publication number: 20090263932
    Abstract: Disclosed are organic semiconductor thin films using aromatic enediyne derivatives, manufacturing methods thereof, and methods of fabricating electronic devices incorporating such organic semiconductor thin films. Aromatic enediyne derivatives according to example embodiments provide improved chemical and/or electrical stability which may improve the reliability of the resulting semiconductor devices. Aromatic enediyne derivatives according to example embodiments may also be suitable for deposition on various substrates via solution-based processes, for example, spin coating, at temperatures at or near room temperature to form a coating film that is then heated to form an organic semiconductor thin film. The availability of this reduced temperature processing allows the use of the aromatic enediynes derivatives on large substrate surfaces and/or on substrates not suitable for higher temperature processing.
    Type: Application
    Filed: March 6, 2009
    Publication date: October 22, 2009
    Inventors: Eun Jeong Jeong, Hyun Sik Moon, Kook Min Han
  • Patent number: 7560731
    Abstract: An organic electronic device of the present invention includes a substrate, at least two electrodes formed on the substrate, a conductive organic thin film that is formed on the substrate and electrically connects the electrodes, and a coating film for coating at least a portion of the electrodes. The conductive organic thin film is a polymer of organic molecules containing a conjugated-bondable group, and one end of each of the organic molecules is chemically bonded to the surface of the substrate and the conjugated-bondable groups in the organic molecules are polymerized with other conjugated-bondable groups to form a conjugated bond chain. The coating film electrically connects the electrodes to the conductive organic thin film and achieves a smaller connection resistance than that in the case where the electrodes and the conductive organic thin film are connected directly.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: July 14, 2009
    Assignee: Panasonic Corporation
    Inventors: Shinichi Yamamoto, Norihisa Mino, Kazufumi Ogawa
  • Patent number: 7554111
    Abstract: A bistable electrical device employing a bistable polymer body made from an electrically insulating polymer material in which doped nanofibers are dispersed. The doped nanofibers are composed of an electrically conductive nanofiber material and electrically conductive nanoparticles. The doped nanofibers impart bistable electrical characteristics to the polymer body, such that the polymer body is reversibly convertible between a low resistance state and a high resistance state by application of an electrical voltage.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: June 30, 2009
    Assignee: The Regents of the University of California
    Inventors: Yang Yang, Richard Kaner
  • Patent number: 7550207
    Abstract: A blue-emitting polymer in which a bisindenospirofluorene unit is incorporated in a polyarylene polymer backbone, and an organic EL device using the blue-emitting polymer as a light-emitting material. One example of the blue-emitting polymer may be represented by Formula 1: where Ar, R1 through R14, X1 and X2, M and n are defined in the specification. The organic EL device exhibits excellent emission efficiency, low turn-on voltage, good color stability and color purity.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: June 23, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Byung-Hee Sohn, Woon-Jung Paek, In-Nam Kang
  • Publication number: 20090001355
    Abstract: A method of forming a polymeric material with a pendant polycyclic aromatic compound precursor includes forming a polycyclic aromatic compound precursor (e.g., a pentacene precursor) including at least one polymerizable functionality, and polymerizing the polymerizable functionality to form the polymeric material with the pendant precursor.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Inventors: Ali Afzali-Ardakani, Cherie R. Kagan
  • Patent number: 7456424
    Abstract: A thin film transistor composed of a semiconductor layer including an optionally substituted indolocarbazole.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: November 25, 2008
    Assignee: Xerox Corporation
    Inventors: Yiliang Wu, Beng S. Ong, Yu Qi, Yuning Li
  • Publication number: 20080283827
    Abstract: A thin film transistor comprises a layer of organic semiconductor material comprising an organic semiconductor material that comprises fused-fluorene-containing materials. Such transistors can further comprise spaced apart first and second contact means or electrodes in contact with said material. Further disclosed is a process for fabricating a thin film transistor device, preferably by sublimation or solution-phase deposition onto a substrate, wherein the substrate temperature is no more than 150° C.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 20, 2008
    Inventors: Shiying Zheng, Diane C. Freeman
  • Publication number: 20080246028
    Abstract: Objects are to solve inhibition of miniaturization of a memory element and complexity of a manufacturing process thereof and to provide a nonvolatile memory device and a semiconductor device each having the memory device, in which data can be additionally written except at the time of manufacture and in which forgery or the like caused by rewriting of data can be prevented, and a memory device and a semiconductor device that are inexpensive and nonvolatile. The present invention provides a semiconductor device that includes a plurality of memory elements, in each of which a first conductive layer, a second conductive layer disposed beside the first conductive layer, and a mixed film that are disposed over the same insulating film. The mixed film contains an inorganic compound, an organic compound, and a halogen atom and is disposed between the first conductive layer and the second conductive layer.
    Type: Application
    Filed: March 25, 2008
    Publication date: October 9, 2008
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Hisao IKEDA, Takahiro IBE, Junichi KOEZUKA, Kaoru KATO
  • Patent number: 7429425
    Abstract: There are provided oligoarylene derivatives capable of emitting blue light at high luminous efficiency which are represented by the following general formulae (1) to (4): Ar1-Ch-Ar2 ??(1) Ch1-L-Ch2 ??(2) Ar3-(L1)a-Ch3-(L2)b-Ar4 ??(3) Ar5-Ch4-(Ar7)n-L3-(Ar8)m-Ch5-Ar6 ??(4) wherein Ch, Ch1 and Ch2 are respectively a group containing at least one substituted or unsubstituted condensed aromatic ring having 14 to 20 nuclear atoms; Ch3, Ch4 and Ch5 are respectively a substituted or unsubstituted arylene group having 14 to 20 nuclear atoms; Ar1, Ar2, Ar3, Ar4, Ar5 and Ar6 are respectively a substituted or unsubstituted aryl group having 5 to 30 nuclear atoms; Ar7 and Ar8 are respectively a substituted or unsubstituted arylene group having 5 to 30 nuclear atoms; L1, L2 and L3 are respectively a connecting group; and a, b, n and m are respectively an integer of 0 to 1, as well as organic electroluminescent devices using the same.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: September 30, 2008
    Assignee: Idemitsu Kosan Company, Ltd.
    Inventors: Hidetsugu Ikeda, Masahide Matsuura, Hisayuki Kawamura