Charge Transfer Complexes (epo) Patents (Class 257/E51.048)
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Patent number: 8932730Abstract: The present invention provides for organometallic and organic dopants suitable for use in organic carrier transporting materials. Also provided are organic light emitting devices containing doped organic carrier transporting materials.Type: GrantFiled: August 27, 2002Date of Patent: January 13, 2015Assignee: The University of Northern CaliforniaInventor: Mark Thompson
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Patent number: 8916276Abstract: An object of the present invention is to provide a composite material formed of an organic compound and an inorganic compound, and has an excellent carrier transporting property, an excellent carrier injecting property to the organic compound, as well as excellent transparency. A composite material of the present invention for achieving the above object is a composite material of an organic compound represented in the general formula below, and an inorganic compound. For the inorganic compound, an oxide of a transition metal, preferably an oxide of a metal belonging to groups 4 to 8 of the periodic table, in particular vanadium oxide, tantalum oxide, molybdenum oxide, tungsten oxide, rhenium oxide, and ruthenium oxide, can be used.Type: GrantFiled: January 7, 2013Date of Patent: December 23, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yuji Iwaki, Satoshi Seo, Daisuke Kumaki
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Patent number: 8796670Abstract: In the present invention, a light-emitting element operating at low driving voltage, consuming low power, emitting light with good color purity and manufactured in high yields can be obtained. A light-emitting element is disclosed with a configuration composed of a fist layer containing a light-emitting material, a second layer, a third layer are formed sequentially over an anode to be interposed between the anode and a cathode in such a way that the third layer is formed to be in contact with the cathode. The second layer is made from n-type semiconductor, a mixture including that, or a mixture of an organic compound having a carrier transporting property and a material having a high electron donor property. The third layer is made from p-type semiconductor, a mixture including that, or a mixture of an organic compound having a carrier transporting property and a material having a high electron acceptor property.Type: GrantFiled: December 17, 2004Date of Patent: August 5, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Daisuke Kumaki, Satoshi Seo
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Patent number: 8669625Abstract: A photoelectric conversion device provided with an electron transport layer having an excellent electron transport ability and having an excellent photoelectric conversion efficiency, and electronic equipment provided with such a photoelectric conversion device and having a high reliability are provided. A solar cell, to which the photoelectric conversion device is applied, has a first electrode provided on a substrate, a second electrode arranged opposite to the first electrode and retained on a facing substrate, an electron transport layer provided between these electrodes and positioned on the side of the first electrode, a dye layer being in contact with the electron transport layer, and an electrolyte layer provided between the electron transport layer and the second electrode and being in contact with the dye layer. The electron transport layer is constituted of a monocrystalline material of multiple oxide as a main component thereof.Type: GrantFiled: January 17, 2008Date of Patent: March 11, 2014Assignees: Seiko Epson, Shinshu UniversityInventors: Yuji Shinohara, Yoshiharu Ajiki, Katsuya Teshima, Shuji Oishi
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Patent number: 8314417Abstract: The present invention provides a memory device which has a memory element having a simple structure in which a composition layer is sandwiched between a pair of conductive layers. With this characteristic, a memory device which is involatile, easily manufactured, and additionally recordable can be provided. A memory device of the present invention has plural memory cells, plural bit lines extending in a first direction, and plural word lines extending in a second direction which is perpendicular to the first direction. Each of the plural memory cells has a memory element. The memory element comprises a first conductive layer forming the bit line, a second conductive layer forming the word line, and a composition layer to be hardened by an optical action. The composition layer is formed between a first conductive layer and a second conductive layer.Type: GrantFiled: December 1, 2005Date of Patent: November 20, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Ryoji Nomura, Yasuko Watanabe, Yoshitaka Moriya
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Patent number: 8017221Abstract: Disclosed is a fluoresceine derivative having the following formula: for the production of an electronic device, in particular a memory switch.Type: GrantFiled: May 22, 2006Date of Patent: September 13, 2011Assignee: STMicroelectronics, S.r.l.Inventors: Sabrina Conoci, Salvatore Petralia, Riccardo Sotgiu, Agostino Pirovano
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Patent number: 7998363Abstract: Provided are a light emitting layer including molten salt and an organic electroluminescent device comprising the light emitting layer. When the organic electroluminescent device is operated, a field induction charge separation layer is formed in the light emitting layer including the molten salt and thus, carrier injection is improved, thereby providing a light emitting layer having improved light emitting efficiency. An organic electroluminescent device including the light emitting layer has low operating voltage and long lifespan.Type: GrantFiled: November 20, 2006Date of Patent: August 16, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jong-Jin Park, Tae-Yong Noh
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Patent number: 7968904Abstract: There is provided an organic electroluminescence device that is high in light emitting efficiency and excellent in driving durability, which contains at least a light emitting layer between an anode and a cathode opposing each other, and further has either 1) an organic layer containing at least a first acceptor and a second acceptor between the light emitting layer and the anode, in which the first acceptor is a metal compound and the second acceptor is an organic compound which does not contain a metal, or 2) an organic layer containing a metal oxide as an acceptor between the light emitting layer and the anode, in which a concentration of the metal oxide in the organic layer is varied in a thickness direction and the concentration is lower in a portion near the light emitting layer than a portion near the anode.Type: GrantFiled: February 5, 2007Date of Patent: June 28, 2011Assignee: Fujifilm CorporationInventor: Yuichiro Itai
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Patent number: 7649211Abstract: The present invention provides a light-emitting element including an electron-transporting layer and a hole-transporting layer between a first electrode and a second electrode; and a first layer and a second layer between the electron-transporting layer and the hole-transporting layer, wherein the first layer includes a first organic compound and an organic compound having a hole-transporting property, the second layer includes a second organic compound and an organic compound having an electron-transporting property, the first layer is formed in contact with the first electrode side of the second layer, the first organic compound and the second organic compound are the same compound, and a voltage is applied to the first electrode and the second electrode, so that both of the first organic compound and the second organic compound emit light.Type: GrantFiled: May 25, 2007Date of Patent: January 19, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Nobuharu Ohsawa
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Patent number: 7550761Abstract: Systems and methodologies are provided for forming a diode component integral with a memory cell to facilitate programming arrays of memory cells created therefrom. Such a diode component can be part of a PN junction of memory cell having a passive and active layer with asymmetric semiconducting properties. Such an arrangement reduces a number of transistor-type voltage controls and associated power consumption, while enabling individual memory cell programming as part of a passive array. Moreover, the system provides for an efficient placement of memory cells on a wafer surface, and increases an amount of die space available for circuit design.Type: GrantFiled: December 26, 2006Date of Patent: June 23, 2009Assignee: Spansion LLCInventors: Juri H. Krieger, Stuart Spitzer
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Publication number: 20070278945Abstract: The present invention provides an organic EL device, which is long-life and has high performance, by optimizing the hole transport layer. An organic electroluminescence device including at least a first electrode 102, an organic electroluminescence medium layer 103 having a hole transport layer 103a and an organic luminescent layer 103b, and a second electrode 104 in this order, wherein the hole transport layer 103a includes associates of a donating molecule and an accepting molecule, and the hole transport layer 103a has different component ratios of the donating molecule and the accepting molecule between the side of the first electrode 102 and the side of the organic luminescent layer 103b.Type: ApplicationFiled: January 25, 2007Publication date: December 6, 2007Inventors: Yuko Abe, Eiichi Kitazume, Hajime Yokoi, Ryo Shoda
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Publication number: 20070181876Abstract: There is provided an organic electroluminescence device that is high in light emitting efficiency and excellent in driving durability, which contains at least a light emitting layer between an anode and a cathode opposing each other, and further has either 1) an organic layer containing at least a first acceptor and a second acceptor between the light emitting layer and the anode, in which the first acceptor is a metal compound and the second acceptor is an organic compound which does not contain a metal, or 2) an organic layer containing a metal oxide as an acceptor between the light emitting layer and the anode, in which a concentration of the metal oxide in the organic layer is varied in a thickness direction and the concentration is lower in a portion near the light emitting layer than a portion near the anode.Type: ApplicationFiled: February 5, 2007Publication date: August 9, 2007Inventor: Yuichiro Itai
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Publication number: 20070181874Abstract: Provided are organic n-doped electron transport layers comprising at least one electron transport material and at least one electron rich dopant material and organic p-doped hole transport layers comprising at least one hole transport material and at least one electron deficient dopant material.Type: ApplicationFiled: December 29, 2006Publication date: August 9, 2007Inventors: Shiva Prakash, Che-Hsiung Hsu
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Publication number: 20070176148Abstract: Provided are a light emitting layer including molten salt and an organic electroluminescent device comprising the light emitting layer. When the organic electroluminescent device is operated, a field induction charge separation layer is formed in the light emitting layer including the molten salt and thus, carrier injection is improved, thereby providing a light emitting layer having improved light emitting efficiency. An organic electroluminescent device including the light emitting layer has low operating voltage and long lifespan.Type: ApplicationFiled: November 20, 2006Publication date: August 2, 2007Inventors: Jong-Jin Park, Tae-Yong Noh
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Patent number: 7232617Abstract: A compound of formula [I]: X—R[I] wherein X represents the group: and R is either (i) represented by the formula [II] wherein n is 1 or 2, and the or each R7 group is independently selected from the group consisting of hydrogen and halogen atoms, cyano, nitro, mercapto, carbonyl and sulfone groups, and optionally substituted alkyl, haloalkyl, hydroxyalkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino, alkylthio, arylthio, ester, siloxy, cyclic hydrocarbon and heterocyclic groups; or (ii) is selected from the group consisting of optionally substituted alkyl, hydroxyalkyl, aryl, cyclic hydrocarbon and heterocyclic groups; wherein in each case R1–R6 are each independently selected from the group consisting of hydrogen and halogen atoms, cyano, nitro, mercapto, carbonyl and sulfone groups, and optionally substituted alkyl, haloalkyl, hydroxyalkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino, alkylthio, arylthio, ester, siloxy, cyclic hydrocarbon and heterocyclic groups.Type: GrantFiled: February 4, 2003Date of Patent: June 19, 2007Assignee: Cityu Research LimitedInventors: Shuit-Tong Lee, Chun-Sing Lee, Peng-Fei Wang, Bao-Xiu Mi
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Publication number: 20060014044Abstract: An organic light-emitting device (OLED) includes an anode, a cathode and a plurality of organic light-emitting units. The organic light-emitting units are separated by a charge transfer layer which may be formed of various fullerenes in combination with a further material. The charge transfer layer may be a relatively homogenous layer that is a mixture of fullerene and the further material or it may include two distinct layers including a fullerene layer and a layer of the further material.Type: ApplicationFiled: July 14, 2004Publication date: January 19, 2006Inventor: Chung-Wen Ko