Coordination Compound (e.g., Porphyrin, Phthalocyanine, Metal(ii) Polypyridine Complexes) (epo) Patents (Class 257/E51.041)
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Publication number: 20090272969Abstract: Provided is a method of patterning an organic thin film which can prevent surface damage of an organic semiconductor layer. Also, an organic thin film transistor that can reduce an off-current and can prevent surface damage of the organic semiconductor layer and a method of manufacturing the organic thin film transistor, and an organic electroluminescence display device having the organic thin film transistor are provided. The method of patterning the organic thin film includes forming the organic thin film on a substrate, selectively printing a mask material on a portion of the organic thin film, dry etching an exposed portion of the organic thin film using the mask material, and removing the mask material.Type: ApplicationFiled: July 16, 2009Publication date: November 5, 2009Applicant: Samsung Mobile Display Co., Ltd.Inventors: Min-Chul Suh, Jae-Bon Koo
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Publication number: 20090267060Abstract: A photoactive device includes a photoactive region disposed between and electrically connected to two electrodes where the photoactive region includes a first organic photoactive layer comprising a first donor material and a second organic photoactive layer comprising a first acceptor material. The first donor material contains photoactive polymer-wrapped carbon nanotubes and the photoactive region includes one or more additional organic photoactive material layers disposed between the first donor material layer and the acceptor material layer. The photoactive region creates excitons upon absorption of light in the range of about 400 nm to 1450 nm.Type: ApplicationFiled: April 7, 2009Publication date: October 29, 2009Applicant: The Regents of the Univerisity of MichiganInventors: Stephen R. Forrest, Michael S. Arnold, Jeramy D. Zimmerman, Richard Lunt
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Publication number: 20090267061Abstract: Carbonyl-functionalized oligo/polythiophene compounds, and related semiconductor components and related device structures.Type: ApplicationFiled: April 29, 2009Publication date: October 29, 2009Inventors: Tobin J. Marks, Antonio Facchetti
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Publication number: 20090261321Abstract: A semiconducting layer comprising a non-polymeric quinoid heteroacene compound of the formula (I) wherein X stands for O, S or NR, each of R, R1, R2, R3, R4, R5, R6, R7, R8 being independently selected from hydrogen and an organic residue, or 2 or more thereof together forming one or more annealed rings, which may be substituted or unsubstituted, carbocyclic or helerocyclic, aromatic, quinoid or aliphatic, may be used e.g. for the manufacture of a diode, an organic field effect transistor, an organic thin film transistor, or a device containing a diode and/or an organic field effect transistor and/or organic thin film transistor.Type: ApplicationFiled: April 4, 2007Publication date: October 22, 2009Applicant: Ciba CorporationInventors: Ulrich Berens, Arno Stassen, Beat Schmidhalter, Wolfgang Kalb, Frank Bienewald
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Publication number: 20090263933Abstract: A field effect transistor is provided which comprises an organic semiconductor layer comprising a compound having a monobenzoporphyrin skeleton represented by the general formula (1): wherein R1 and R2 are independently selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxyl group, and alkyl, alkenyl, oxyalkyl, thioalkyl, alkyl ester and aryl groups each having 1 to 12 carbon atoms with the proviso that adjacent R1 may be the same or different and adjacent R2 may be the same or different and that at least two of R2 are not hydrogen atoms; R3 is a hydrogen atom or an aryl group; and M denotes two hydrogen atoms, a metal atom or a metal oxide.Type: ApplicationFiled: June 26, 2009Publication date: October 22, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Akane Masumoto, Daisuke Miura, Tomonari Nakayama
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Publication number: 20090256141Abstract: Embodiments of the present invention provide an organic photosensitive optoelectronic device comprising at least one tetra-azaporphyrin compound of formula (I) are disclosed herein.Type: ApplicationFiled: October 11, 2008Publication date: October 15, 2009Applicants: UNIVERSITY OF SOUTHERN CALIFORNIA, THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Mark E. Thompson, Stephen R. Forrest, Elizabeth Mayo, Kristin L. Mutolo Martinez, Rhonda F. Bailey-Salzman
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Publication number: 20090256143Abstract: An oligothiophene-arylene derivative wherein an arylene having n-type semiconductor characteristics is introduced into an oligothiophene having p-type semiconductor characteristics, thereby simultaneously exhibiting both p-type and n-type semiconductor characteristics. Further, an organic thin film transistor using the oligothiophene-arylene derivative.Type: ApplicationFiled: February 23, 2009Publication date: October 15, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Eun Jeong Jeong, Chang Ju Kim, Bang Lin Lee, Sang Yoon Lee, Kook Min Han
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Publication number: 20090250676Abstract: An liquid crystalline organic semiconductor material practical as an organic semiconductor is provided. The material is a liquid crystal composition having a smectic liquid crystal phase. The liquid crystalline organic semiconductor material has a distyrylbenzene structure of formula (1). When heated to a temperature range for the smectic liquid crystal phase followed by being cooled, the material takes on a solid state as a result of phase transition from the smectic phase. Wherein R1 and R2, which may be the same or different, each represent an alkyl group, an alkoxy group or a group of general formula (2): Wherein R3 represents a hydrogen atom or a methyl group; and B represents —(CH2)m—, —(CH2)m—O—, —CO—O—(CH2)m, —CO—O—(CH2)m—O—, —C6H4—CH2—O— or —CO—.Type: ApplicationFiled: February 17, 2006Publication date: October 8, 2009Applicants: YAMANASHI UNIVERSITY, NIPPON CHEMICAL INDUSTRIAL CO., LTD.Inventor: Yuichiro Haramoto
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Publication number: 20090247753Abstract: It is an object to provide a new compound which is suitable for a material of an electron-transporting layer of a light-emitting element. In particular, it is an object to provide a compound which can be used for forming a light-emitting element capable of emitting light at a low drive voltage. An acenaphthopyridine derivative represented by the following general formula (G1) is provided. In the formula, Het represents a pyridyl group or a quinolyl group.Type: ApplicationFiled: March 24, 2009Publication date: October 1, 2009Inventors: Takako Takasu, Ryoji Nomura, Satoko Shitagaki, Satoshi Seo
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Publication number: 20090224231Abstract: An electronic device of the present invention includes at least one electrode (Au electrode 65) and an organic molecule layer (semiconductor layer 14) formed adjacent to the electrode, and in which charge transfers between the layer and the electrode. The organic molecule layer includes a plurality of first organic molecules containing a conjugated ? electron that composes a ? conjugate plane (64). A plurality of second organic molecules is bonded chemically to a surface of the electrode at an interface between the electrode and the organic molecule layer. The second organic molecule contains a conjugated ? electron that composes a ? conjugate plane (67a). The second organic molecule is a molecule having a structure in which the ? conjugate plane (67a) and the surface of the electrode form an angle within a predetermined range when the second organic molecule is bonded chemically to the surface of the electrode.Type: ApplicationFiled: October 24, 2005Publication date: September 10, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTDInventors: Takayuki Takeuchi, Kenji Harada, Tomohiro Okuzawa, Nobuaki Kambe, Jun Terao
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Patent number: 7586117Abstract: A field effect transistor is provided which comprises an organic semiconductor layer comprising a compound having a monobenzoporphyrin skeleton represented by the general formula (1): wherein R1 and R2 are independently selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxyl group, and alkyl, alkenyl, oxyalkyl, thioalkyl, alkyl ester and aryl groups each having 1 to 12 carbon atoms with the proviso that adjacent R1 may be the same or different and adjacent R2 may be the same or different and that at least two of R2 are not hydrogen atoms; R3 is a hydrogen atom or an aryl group; and M denotes two hydrogen atoms, a metal atom or a metal oxide.Type: GrantFiled: March 16, 2005Date of Patent: September 8, 2009Assignee: Canon Kabushiki KaishaInventors: Akane Masumoto, Daisuke Miura, Tomonari Nakayama
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Patent number: 7582364Abstract: This invention provides an organic electroluminescent element (organic EL element) utilizing phosphorescence which emits light efficiently with high luminance at low current density, shows good driving stability and is applicable to display devices such as flat panel displays and illuminating devices. The element comprises an anode, organic layers and a cathode piled one upon another on a substrate, at least one of the organic layers is a light-emitting layer containing a host material and a dopant material and a pyrazole-derived compound having 2-4 pyrazole structures represented by the following formula I in the same molecule is used as said host material; wherein, Ar1-Ar3 are independently hydrogen or substituted or unsubstituted aromatic hydrocarbon groups and at least one of Ar1-Ar3 is a group other than hydrogen.Type: GrantFiled: September 21, 2004Date of Patent: September 1, 2009Assignee: Nippon Steel Chemical Co., Ltd.Inventors: Osamu Yoshitake, Hiroshi Miyazaki, Daisuke Suzaki, Yu Yamada
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Patent number: 7569288Abstract: An OLED device comprises an anode, a light emitting layer, a first layer, a second layer contiguous to the first layer, and a cathode, in that order. The first layer includes a first complex comprising gallium and the second layer includes a second complex also comprising gallium and wherein the second complex has a more negative LUMO than the first complex. Such materials can provide an improvement in one or more of luminance, drive voltage, and stability.Type: GrantFiled: March 1, 2006Date of Patent: August 4, 2009Assignee: Eastman Kodak CompanyInventors: Tommie L. Royster, Jr., Michele L. Ricks
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Patent number: 7566505Abstract: The present invention provides an organic electroluminescent element having at least one organic layer including a luminescent layer between a pair of electrodes wherein at least one organic layer contains a metal complex of cyclic tetradentate ligand having a specific structure.Type: GrantFiled: March 31, 2005Date of Patent: July 28, 2009Assignee: FUJIFILM CorporationInventors: Toshihiro Ise, Satoshi Sano, Tatsuya Igarashi
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Patent number: 7563519Abstract: Organic light emitting devices are disclosed which are comprised of a heterostructure for producing electroluminescence wherein the heterostructure is comprised of an emissive layer containing a phosphorescent dopant compound.Type: GrantFiled: July 23, 2007Date of Patent: July 21, 2009Assignees: The Trustees of Frinceton University, The University of Southern CaliforniaInventors: Mark E. Thompson, Yujian You, Andrei Shoustikov, Scott Sibley, Paul E. Burrows, Stephen R. Forrest
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Publication number: 20090124040Abstract: There is provided a field effect transistor having an organic semiconductor layer, including: an organic semiconductor layer containing at least porphyrin; and a layer composed of at least a polysiloxane compound, the layer being laminated on the organic semiconductor layer so as to be in intimate contact with the organic semiconductor layer. As a result, there can be provided a field effect transistor which enables an organic semiconductor layer having high crystallinity and high orientation to be formed and which exhibits a high mobility.Type: ApplicationFiled: January 15, 2009Publication date: May 14, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Daisuke Miura, Tomonari Nakayama, Toshinobu Ohnishi, Makoto Kubota, Akane Masumoto, Hidetoshi Tsuzuki, Makiko Miyachi
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Publication number: 20080308789Abstract: An object of the present invention is to provide a field effect transistor showing high field-effect mobility and a high ON/OFF ratio, which can be produced simply by using a porphyrin compound with excellent crystallinity and orientation. The field effect transistor according to the present invention transistor contains at least an organic semiconductor layer, wherein the organic semiconductor layer contains at least a porphyrin compound and has a maximum diffraction intensity I1 in a Bragg angle (2?) range of 9.9° to 10.4° stronger than a maximum diffraction intensity I2 in a Bragg angle (2?) range of 23.0° to 26.0° in X-ray diffraction using CuK? radiation.Type: ApplicationFiled: March 8, 2005Publication date: December 18, 2008Applicant: Canon Kabushiki KaishaInventors: Daisuke Miura, Tomonari Nakayama, Toshinobu Ohnishi, Makoto Kubota, Akane Masumoto, Satomi Sugiyama
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Patent number: 7462404Abstract: Novel boron complexes are blue emissive electroluminescent compounds.Type: GrantFiled: March 12, 2004Date of Patent: December 9, 2008Assignee: Merck Patent GmbHInventors: Poopathy Kathirgamanathan, Matthew Samuel Kirkham, Alexander Kit Lay, Subramaniam Ganeshamurugan, Gnanamoly Paramaswara, Muttulingam Kumaraverl, Arumugam Partheepan, Selvadurai Selvaranjan, Juan Antipan-Lara, Richard Price, Sivagnanasundram Surendrakumar
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Patent number: 7452614Abstract: The present invention is related to a luminescent material generated by polymerization of a pyrromethene complex by glow discharge. The polymer material of the present invention exhibits semi-conductive properties and has a luminescence maximum in a spectrum region in the range of about 540 nm to about 585 nm with a half-width of the luminescence band in the range of about 55 nm to about 75 nm, a quantum yield of photoluminescence in the range of about 0.6 to about 0.8, and an electric conductivity at a temperature of about 20° C. in the range of about 1×10?10 S/cm to about 5×10?10 S/cm. The resultant polymer layer has a thickness in the range of about 0.01 ?m to about 10 ?m on a substrate placed between or on any of the electrodes. The starting pyrromethene complex may be a 1,3,5,7,8-pentamethyl-2,6-diethylpyrromethene difluoroborate complex (pyrromethene 567).Type: GrantFiled: December 30, 2004Date of Patent: November 18, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Alexandr Ivanovich Drachev, Alla Borisovna Gilman, Alexandr Alexeevich Kuznetsov, Nikolay Mikhaylovich Surin
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Publication number: 20080277649Abstract: A field effect transistor is provided which comprises an organic semiconductor layer comprising a compound having a monobenzoporphyrin skeleton represented by the general formula (1): wherein R1 and R2 are independently selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxyl group, and alkyl, alkenyl, oxyalkyl, thioalkyl, alkyl ester and aryl groups each having 1 to 12 carbon atoms with the proviso that adjacent R1 may be the same or different and adjacent R2 may be the same or different and that at least two of R2 are not hydrogen atoms; R3 is a hydrogen atom or an aryl group; and M denotes two hydrogen atoms, a metal atom or a metal oxide.Type: ApplicationFiled: March 16, 2005Publication date: November 13, 2008Applicant: Canon Kabushiki KaishaInventors: Akane Masumoto, Daisuke Miura, Tomonari Nakayama
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Patent number: 7413818Abstract: There is provided an organic light-emitting device obtained by using a specific copper coordination compound as a light-emitting material, which has a basic structure in which two copper ions are crosslinked in a ring form by one of atomic groups containing a halogen atom, a sulfur atom, and an nitrogen atom. The light-emitting device provides high luminescence efficiency and high stability at low cost by using an inexpensive copper coordination compound as a light-emitting material.Type: GrantFiled: September 29, 2004Date of Patent: August 19, 2008Assignee: Canon Kabushiki KaishaInventors: Akira Tsuboyama, Shinjiro Okada, Takao Takiguchi, Jun Kamatani, Manabu Furugori, Katsuaki Kuge
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Patent number: 7394096Abstract: Provided is a field effect transistor having an organic semiconductor layer, in which the organic semiconductor layer contains at least a tetrabenzo copper porphyrin crystal and has peaks at two or more of Bragg angles (2?) in CuK? X-ray diffraction of 8.4°±0.2°, 10.2°±0.2°, 11.8°±0.2°, and 16.9°±0.2°, and the tetrabenzo copper porphyrin crystal comprises a compound represented by the following general formula (1). (Wherein R2's each represent a hydrogen atom, a halogen atom, a hydroxyl group, or an alkyl group, oxyalkyl group, thioalkyl group, or alkylester group having 1 to 12 carbon atoms, and R3's each represent a hydrogen atom or an aryl group.).Type: GrantFiled: August 22, 2007Date of Patent: July 1, 2008Assignee: Canon Kabushiki KaishaInventors: Daisuke Miura, Tomonari Nakayama, Toshinobu Ohnishi, Makoto Kubota
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Patent number: 7368823Abstract: A method of manufacturing a semiconductor device having an interconnection part formed of multiple carbon nanotubes is disclosed. The method includes the steps of (a) forming a growth mode control layer controlling the growth mode of the carbon nanotubes, (b) forming a catalyst layer on the growth mode control layer, and (c) causing the carbon nanotubes to grow by heating the catalyst layer by thermal CVD so that the carbon nanotubes serve as the interconnection part. The growth mode control layer is formed by sputtering or vacuum deposition in an atmospheric gas, using a metal selected from a group of Ti, Mo, V, Nb, and W. The growth mode is controlled in accordance with a predetermined concentration of oxygen gas of the atmospheric gas.Type: GrantFiled: July 3, 2006Date of Patent: May 6, 2008Assignee: Fujitsu LimitedInventors: Masahiro Horibe, Akio Kawabata, Mizuhisa Nihei
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Patent number: 7361414Abstract: There is provided a high light-emission-efficiency, highly stable, low-cost light emitting device that utilizes a copper complex as a light emitting material and comprises a pair of electrodes provided on a substrate, and an organic substance layer provided between the electrode and comprising a metal coordination compound having a partial structure represented by the general formula (1): wherein Cu represents a copper ion.Type: GrantFiled: May 2, 2003Date of Patent: April 22, 2008Assignee: Canon Kabushiki KaishaInventors: Akira Tsuboyama, Shinjiro Okada, Takao Takiguchi, Kazunori Ueno, Satoshi Igawa, Jun Kamatani, Manabu Furugori, Hironobu Iwawaki
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Publication number: 20080048185Abstract: Provided is a field effect transistor having an organic semiconductor layer, in which the organic semiconductor layer contains at least a tetrabenzo copper porphyrin crystal and has peaks at two or more of Bragg angles (2?) in CuK? X-ray diffraction of 8.4°±0.2°, 10.2°±0.2°, 11.8°±0.2°, and 16.9°±0.2°, and the tetrabenzo copper porphyrin crystal comprises a compound represented by the following general formula (1). General Formula (1): (Wherein R2's each represent a hydrogen atom, a halogen atom, a hydroxyl group, or an alkyl group, oxyalkyl group, thioalkyl group, or alkylester group having 1 to 12 carbon atoms, and R3's each represent a hydrogen atom or an aryl group.Type: ApplicationFiled: August 22, 2007Publication date: February 28, 2008Applicant: Canon Kabushiki KaishaInventors: Daisuke Miura, Tomonari Nakayama, Toshinobu Ohnishi, Makoto Kubota
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Patent number: 7303824Abstract: An electroluminescent device which has an electroluminescent layer formed of a binuclear, trinuclear or polynuclear rare earth organic complex in which the metals are linked through a bridging ligand.Type: GrantFiled: August 5, 2002Date of Patent: December 4, 2007Assignee: OLED-T LimitedInventors: Poopathy Kathirgamanathan, Lisa Marie Bushby, Richard David Price
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Publication number: 20070267627Abstract: An organic memory device and a method for fabricating the memory device are provided. The organic memory device may include a first electrode, a second electrode, and an ion transfer layer between the first electrode and the second electrode. The organic memory device may have lower operating voltage and current, and may be fabricated at lower costs.Type: ApplicationFiled: December 1, 2006Publication date: November 22, 2007Inventors: Won Jae Joo, Tae Lim Choi, Sang Kyun Lee
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Patent number: 7291405Abstract: An organic electroluminescent device comprising: a pair of electrodes; and at least one organic compound layer between the pair of electrodes, the at least one organic compound layer including a light emitting layer, wherein the light emitting layer contains at least one host material and at least one luminescent material, and the host material is a metal complex containing a metal in groups 4 to 11 or periods 5 to 6 of a Periodic Table.Type: GrantFiled: December 18, 2003Date of Patent: November 6, 2007Assignee: Fujifilm CorporationInventors: Tatsuya Igarashi, Toshihiro Ise
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Patent number: 7279235Abstract: Organic light emitting devices are Disclosed which are comprised of a heterostructure for producing electroluminescence wherein the heterostructure is comprised of an emissive layer containing a phosphorescent dopant compound.Type: GrantFiled: February 18, 2005Date of Patent: October 9, 2007Assignees: The Trustees of Princeton University, The University of Southern CaliforniaInventors: Mark E. Thompson, Yujian You, Andrei Shoustikov, Scott Sibley, Paul E. Burrows, Stephen R. Forrest
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Patent number: 7279237Abstract: Organic light emitting devices are disclosed, which comprise a heterostructure for producing electroluminescence, wherein the heterostructure comprises an emissive layer containing a phosphorescent dopant compound.Type: GrantFiled: August 23, 2006Date of Patent: October 9, 2007Assignees: The Trustees of Princeton University, The University of Southern CaliforniaInventors: Mark E. Thompson, Yujian You, Andrei Shoustikov, Scott Sibley, Paul E. Burrows, Stephen R. Forrest
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Patent number: 7279233Abstract: There is provided a light-emitting material comprising a metal coordination compound having a partial structure represented by the following general formula (1). The light-emitting material has high luminous efficiency and high stability and can be produced at a low cost.Type: GrantFiled: July 9, 2004Date of Patent: October 9, 2007Assignee: Canon Kabushiki KaishaInventors: Akira Tsuboyama, Shinjiro Okada, Takao Takiguchi, Satoshi Igawa, Jun Kamatani, Manabu Furugori
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Publication number: 20070231599Abstract: There is provided an organic electroluminescence device including: a pair of electrodes formed of an anode and a cathode; and an organic compound layer provided between the pair of electrodes, in which: the organic compound layer contains a metal so that the metal partially forms a coordination bond with an organic compound; and a ratio of the number of metal atoms involved in the coordination to the total number of metal atoms in the layer is 0.11 or more to 0.42 or less. The organic electroluminescence device has excellent light emitting property that is not largely impaired even after the device is driven for a long time period.Type: ApplicationFiled: March 2, 2007Publication date: October 4, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Shinichi Nakamura, Seishi Miura
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Publication number: 20070232841Abstract: A fluorene derivative represented by the following structural formula. An organic electroluminescence device including a pair of electrodes, and at least one layer containing an organic compound interposed between the pair of the electrodes. The at least one layer containing the organic compound contains the fluorene derivative. The layer containing the fluorene derivative serves as a light-emitting layer.Type: ApplicationFiled: March 14, 2007Publication date: October 4, 2007Applicant: CANON KABUSHIKI KAISHAInventors: SATOSHI IGAWA, SHINJIRO OKADA, TAKAO TAKIGUCHI, MASASHI HASHIMOTO, NAOKI YAMADA
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Patent number: 7235311Abstract: An electroluminescent device in which there is an electroluminescent which comprises a complex of general formula (L?)nM1M2 or of general formula (L?)n M1M2 (Lp), where Lp is a neutral ligand and where M1 is a rare earth, transition metal, lanthamide or an actimide, M2 is a non rare earth metal, L?is an organic complex and n is the combined valence state of M1 and M2.Type: GrantFiled: April 22, 2002Date of Patent: June 26, 2007Assignee: Oled-T LimitedInventors: Poopathy Kathirgamanathan, Seenivasagam Ravichandran, Sivagnasundram Surendrakumar
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Patent number: 7230268Abstract: This invention provides a new procedure for attaching molecules to semiconductor surfaces, in particular silicon. The molecules, which include, but are not limited to porphyrins and ferrocenes, have been previously shown to be attractive candidates for molecular-based information storage. The new attachment procedure is simple, can be completed in short times, requires minimal amounts of material, is compatible with diverse molecular functional groups, and in some instances affords unprecedented attachment motifs. These features greatly enhance the integration of the molecular materials into the processing steps that are needed to create hybrid molecular/semiconductor information storage devices.Type: GrantFiled: May 26, 2005Date of Patent: June 12, 2007Assignees: The Regents of the University of California, The North Carolina State UniversityInventors: David F Bocian, Jonathan S Lindsey, Zhiming Liu, Amir A Yasseri, Robert S Loewe
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Publication number: 20070111026Abstract: An OLED device comprises an anode, a cathode and therebetween a light emitting layer containing a compound represented by Formula I below: wherein: each A is independently selected from N and P; each E is independently selected from N, P, and As; each Z is a radical independently selected from each R is an independently selected substituent; and each R? is independently selected from H and a substituent; provided that two substituent groups can join to form a ring.Type: ApplicationFiled: November 15, 2005Publication date: May 17, 2007Inventors: Joseph Deaton, Richard Eisenberg
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Publication number: 20070015008Abstract: An organic electroluminescence element is disclosed which comprises a hole transporting layer containing a hole transporting material, a light emission layer containing a host compound and a phosphorescent compound, a hole blocking layer, and an electron transporting layer, the host compound having a band gap of from 3.3 eV to 5 eV, and having a molecular weight of not less than 500, and relationship c<d being satisfied, wherein c (eV) represents a difference between energy level of LUMO (lowest unoccupied molecular orbital) in the hole blocking layer and energy level of LUMO in the light emission layer and d (eV) represents a difference between energy level of HOMO (highest occupied molecular orbital) in the hole blocking layer and energy level of HOMO in the light emission layer.Type: ApplicationFiled: September 6, 2006Publication date: January 18, 2007Inventors: Tomohiro Oshiyama, Hiroshi Kita, Taketoshi Yamada
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Publication number: 20070015005Abstract: An organic electroluminescent device including an anode on a substrate, an organic luminescent layer on the anode and a cathode on the organic luminescent layer is provided.Type: ApplicationFiled: July 7, 2006Publication date: January 18, 2007Applicant: Chi Mei Optoelectronics Corp.Inventors: Ruey-Min Chen, Chung-Yu Chen, Chin-In Wu, Wu-Jen Hsieh
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Publication number: 20060286409Abstract: Organic light emitting devices are disclosed, which comprise a heterostructure for producing electroluminescence, wherein the heterostructure comprises an emissive layer containing a phosphorescent dopant compound.Type: ApplicationFiled: August 23, 2006Publication date: December 21, 2006Inventors: Mark Thompson, Yujian You, Andrei Shoustikov, Scott Sibley, Paul Burrows, Stephen Forrest
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Publication number: 20060222887Abstract: The invention provides an organic electroluminecent device including an organic compound layer provided between a pair of electrodes. The organic compound layer has at least a luminescent layer. The luminescent layer has at least a metal complex containing a tri- or higher-dentate ligand and plumality of host compounds. The metal complex is preferably a metal complex capable of obtaining light emission from a triplet exciton. The ligand of the metal complex is preferably chained or cyclic. Further, an ionization potential of the metal complex is preferably larger than a minimum value out of ionization potentials of the plurality of host compounds.Type: ApplicationFiled: November 9, 2005Publication date: October 5, 2006Inventor: Hisashi Okada
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Publication number: 20060214568Abstract: The invention provides an organic electroluminescent device having one or more organic compound layers between a pair of electrodes, the one or more organic compound layers including at least a luminescent layer, wherein a host material and at least two different luminescent materials including at least one phosphorescent material are contained in the same luminescent layer, and the luminescent layer has a region containing the host material and one luminescent material and a region containing the host material and at least two luminescent materials in the thickness direction of the luminescent layer.Type: ApplicationFiled: March 24, 2006Publication date: September 28, 2006Inventors: Kazuki Yamazaki, Masayuki Mishima
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Publication number: 20060204787Abstract: An organic electroluminescent device contains: a pair of electrodes; and an organic compound layer containing a light-emitting layer, the organic compound layer being between the electrodes, wherein the organic compound layer contains a platinum complex including specific structure.Type: ApplicationFiled: March 14, 2006Publication date: September 14, 2006Inventors: Satoshi Sano, Tatsuya Igarashi, Toshihiro Ise, Takeshi Murakami, Seiji Ichijima
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Publication number: 20060182992Abstract: An organic electroluminescent device, which has a pair of electrodes and at least one organic layer including a luminescent layer between the pair of electrodes, wherein at least one layer between the pair of electrodes comprises at least one metal complex having a tridentate- or higher polydentate-chain structure ligand.Type: ApplicationFiled: June 1, 2004Publication date: August 17, 2006Inventors: Kazumi Nii, Kousuke Watanabe, Tatsuya Igarashi, Seiji Ichijima, Toshihiro Ise
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Patent number: 7087319Abstract: The present invention relates to an organic electroluminescence display using a metallocene compound, and more particularly to an organic electroluminescence display with a simple structure using a metallocene compound, which has superior photoconductivity, can be used as a p-type semiconductor material, and functions as a superior luminescent material, as a luminescent material.Type: GrantFiled: September 5, 2003Date of Patent: August 8, 2006Assignee: Samsung Electronics Co., Ltd.Inventor: Jang-Sub Kim
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Publication number: 20060172146Abstract: An organic electroluminescent device, which has a pair of electrodes, and at least one organic layer including a luminescent layer between the electrodes, wherein the organic layer contains at least one compound of formula (1): Formula (1) wherein Q11? are atoms for forming a nitrogen-containing hetero ring; Z11? to Z13? each are a substituted or unsubstituted carbon or nitrogen atom; n11? is 0 or 1; M11? is a metal or boron ion that may further have a ligand(s); and a compound of formula (6): Formula (6) wherein R63? to R66? each are a hydrogen atom or a substituent; X61? to X64? and Z61? to Z66? each are a substituted or unsubstituted carbon or nitrogen atom.Type: ApplicationFiled: May 7, 2004Publication date: August 3, 2006Inventors: Tatsuya Igarashi, Kousuke Watanabe, Seiji Ichijima, Toshihiro Ise
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Publication number: 20060151780Abstract: A nonvolatile memory cell including a substrate, a first electrode and a second electrode, and an active layer between the first and second electrodes. The active layer includes a self-assembled monolayer of an organic compound, and the second electrode is constructed from carbon-containing materials.Type: ApplicationFiled: November 30, 2005Publication date: July 13, 2006Inventor: Klaus-Dieter Ufert
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Publication number: 20060105202Abstract: A first aspect of the invention is an organic electroluminescent device that includes a plurality of organic compound layers between a pair of electrodes. The plurality of organic compound layers include a luminescent layer and two or more hole-transporting layers. The hole-transporting layers include a layer adjacent to the luminescent layer. The luminescent layer contains a host material and a luminescent material. The luminescent material is a metal complex containing a tri- or higher-dentate ligand. When the ionization potential of the luminescent layer is designated as Ip0, the ionization potential of the hole-transporting layer adjacent to the luminescent layer among the hole-transporting layers is designated as Ip1, and the ionization potential of the n-th hole-transporting layer from the luminescent layer among the hole-transporting layers is designated as IPn, these values satisfy the relationship represented by the following formula (1). In formula (1) n is an integer of 2 or more.Type: ApplicationFiled: November 15, 2005Publication date: May 18, 2006Inventor: Yoshitaka Kitamura
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Publication number: 20060105197Abstract: An improved electroluminescent device has a layer of a first electroluminescent metal complex or organo metallic complex and a layer of a second metal complex or organo metallic complex in which the band gap of the metal in the second electroluminescent metal complex or organo metallic complex is larger than the band gap of the metal in the first electroluminescent metal complex or organo metallic complex.Type: ApplicationFiled: December 23, 2003Publication date: May 18, 2006Applicant: Elam-T LimitedInventors: Poopathy Kathirgamanathan, Vijendra Kandappu, Subramaniam Ganeshamurugan, Gnanamoly Paramaswara
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Patent number: 7026041Abstract: Organic photosensitive optoelectronic devices (“OPODs”) are disclosed which include an exciton blocking layer to enhance device efficiency. Single heterostructure, stacked and wave-guide type embodiments are disclosed. Photodetector OPODs having multilayer structures and an exciton blocking layer are also disclosed. Guidelines for selection of exciton blocking layers are provided.Type: GrantFiled: January 14, 2005Date of Patent: April 11, 2006Assignee: The Trustees of Princeton UniversityInventors: Stephen R. Forrest, Vladimir Bulovic, Peter Peumans