Inorganic Materials (epo) Patents (Class 257/E31.004)

  • Publication number: 20130029451
    Abstract: A method for making a solar cell includes: (a) forming over a substrate a photoelectric transformation layer that is made of a chalcopyrite-based photovoltaic material; (b) performing an ion milling treatment, in which ions are injected to an upper surface of the photoelectric transformation layer at an ion incident angle with respect to the upper surface to partially etch the photoelectric transformation layer, so that the photoelectric transformation layer is formed with a plurality of nano-pillar structures, the ion incident angle ranging from 0° to 90°; and (c) forming an electrode unit to transmit electricity from the photoelectric transformation layer.
    Type: Application
    Filed: January 23, 2012
    Publication date: January 31, 2013
    Inventors: Yu-Lun Chueh, Chin-Hung Liu, Chih-Huang Lai
  • Publication number: 20130009143
    Abstract: A photo sensor and a method of fabricating the same are disclosed, the photo sensor of the present invention has ultra-high Schottky junction area per unit volume, and the photo sensor comprises: a first conductive layer; plural metallic nanowires, in which one end of each metallic nanowire connects with the first conductive layer and is covered with a semiconductive layer having a width of 1 nm to 20 nm; and a second conductive layer locating opposite to the first conductive layer, whereby the plural metallic nanowires locate between the first conductive layer and the second conductive layer, and the semiconductive layer contacts with the second conductive layer, wherein the photo sensor of the present invention is used to detect ultra violet (UV) light with a wavelength of 10 nm-400 nm.
    Type: Application
    Filed: October 5, 2011
    Publication date: January 10, 2013
    Inventors: Chih Chen, Chien-Min Liu, Yuan-Chieh Tseng
  • Publication number: 20130000728
    Abstract: A photovoltaic cell includes a photoelectric conversion element (PCE) in which an i-type silicon layer formed of a microcrystalline silicon film is provided between an n-type silicon layer and a p-type silicon layer, and the n-type silicon layer or p-type silicon layer positioned on a substrate side is configured of an amorphous silicon film. The PCE is formed wherein a mixture of a silane containing gas and hydrogen gas is introduced into a chamber and a seed layer formed of a microcrystalline silicon film is formed between the n-type silicon layer or p-type silicon layer positioned on the substrate side and the i-type silicon layer. The crystallization rate of a portion in contact with the n-type silicon layer or p-type silicon layer positioned on the substrate side is lower than that of the i-type silicon layer, and the rate increases continuously, or gradually in two or more stages, toward the i-type silicon layer side, continuing to the i-type silicon layer.
    Type: Application
    Filed: September 8, 2010
    Publication date: January 3, 2013
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Naoyuki Ohse, Kensuke Takenaka
  • Publication number: 20130005068
    Abstract: A method for removing the growth substrate of a circuit of electromagnetic radiation detection, especially in the infrared or visible range, said detection circuit including a layer of detection of said radiation made of Hg(1-x)CdxTe obtained by liquid or vapor phase epitaxy or by molecular beam epitaxy, said detection circuit being hybridized on a read circuit. The method includes submitting the growth substrate to a mechanical or chem.-mech. polishing step or to a chemical etch step to decrease its thickness, all the way to an interface area between the material of the detection circuit and the growth substrate; and submitting the interface thus obtained to an iodine treatment.
    Type: Application
    Filed: June 21, 2012
    Publication date: January 3, 2013
    Applicants: Centre National De La Recherche Scientifique, Societe Francaise De Detecteurs Infrarouges-Sofradir
    Inventors: Christophe PAUTET, Arnaud ETCHEBERRY, Alexandre CAUSIER, Isabelle GERARD
  • Publication number: 20120327032
    Abstract: Light-sensing apparatuses may include a light sensor transistor and a switching transistor in a light-sensing pixel, the transistors being oxide semiconductor transistors. In the light-sensing apparatus, the light sensor transistor and the switching transistor in the light-sensing pixel may be adjacently formed on one substrate, the switching transistor including a channel material that is relatively less light-sensitive than the light sensor transistor and is stable, and the light sensor transistor includes a channel material that is relatively light-sensitive. The light sensor transistor may include a transparent upper electrode on a surface of a channel, and a negative voltage may be applied to the transparent upper electrode, whereby a threshold voltage shift in a negative voltage direction may be prevented or reduced.
    Type: Application
    Filed: March 30, 2012
    Publication date: December 27, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sang-hun JEON, I-hun SONG, Seung-eon AHN, Chang-jung KIM, Young KIM
  • Publication number: 20120322197
    Abstract: Methods and devices are provided for forming thin-films from solid group IIIA-based particles. In one embodiment, a process for forming solid particles is provided. The method includes providing a first suspension of solid and/or liquid particles containing at least one group IIIA element. A material may be added to substantially increase the melting point of at least one set of group IIIA-containing particles in the suspension into higher-melting solid particles comprising an alloy of the group IIIA element and at least a part of the added material. The suspension may be deposited onto a substrate to form a precursor layer on the substrate and the precursor layer is reacted in a suitable atmosphere to form a film.
    Type: Application
    Filed: May 12, 2012
    Publication date: December 20, 2012
    Applicant: NANOSOLAR, INC.
    Inventors: Matthew R. Robinson, Chris Eberspacher, Jeroen K. J. Van Duren
  • Publication number: 20120305069
    Abstract: Provided are a photoelectrode including a zinc oxide hemisphere, a method of fabricating the same, and a dye-sensitized solar cell using the same. The photoelectrode includes a conductive substrate, a zinc oxide hemisphere disposed on the conductive substrate, and a porous metal oxide layer covering the zinc oxide hemisphere. Light scattering effects of photoelectrodes can be increased, and recombination losses of electrons can be minimized to improve photovoltaic properties.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 6, 2012
    Inventors: Ki Seok Kim, Sang Hoon Nam, Hui Su Jeong, Hui Song, Sang-Mook Kim, Won Bae Kim, Gun-Young Jung
  • Publication number: 20120292729
    Abstract: Semiconductor structures, devices, and methods that can exhibit various enhanced properties, such as, for example, enhanced light detection properties are provided. In one aspect, for example, an optoelectronic device can include a semiconductor material having an enhanced absorption region and a first defect in the enhanced absorption region, where the first defect is a deep-level defect generated by a first defect carrier type that is either a deep-level donor carrier type or a deep-level acceptor carrier type. The device can also include a second defect in the enhanced absorption region, where the second defect is either a shallow-level defect or a deep-level defect, and where the second defect is generated by a second defect carrier type that is opposite to the first defect carrier type. Furthermore, the enhanced absorption region has an external quantum efficiency of at least about 0.5% for electromagnetic radiation wavelengths greater than 1250 nm.
    Type: Application
    Filed: May 15, 2012
    Publication date: November 22, 2012
    Applicant: SiOnyx, Inc.
    Inventor: Christopher Vineis
  • Publication number: 20120288987
    Abstract: The present invention relates to aqueous processes to make metal chalcogenide nanoparticles that are useful precursors to copper zinc tin sulfide/selenide and copper tin sulfide/selenide. In addition, this invention provides processes for preparing crystalline particles from the metal chalcogenide nanoparticles, as well as processes for preparing inks from both the metal chalcogenide nanoparticles and the crystalline particles.
    Type: Application
    Filed: November 22, 2010
    Publication date: November 15, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Daniela Rodica Radu, Lynda Kaye Johnson, Cheng-Yu Lai, Meijun Lu, Irina Malajovich
  • Publication number: 20120282730
    Abstract: An ink composition includes a solvent system, a plurality of metal chalcogenide nanoparticles, at least one of metal ions and metal complex ions and a sodium source. The at least one of the metal ions and the metal complex ions are distributed on the surface of the metal chalcogenide nanoparticles and adapted to disperse the metal chalcogenide nanoparticles in the solvent system. The sodium source is dispersed in the solvent system and/or is included in at least one of the metal chalcogenide nanoparticle, the metal ions and the metal complex ions. The metals of the metal chalcogenide nanoparticles, the metal ions and the metal complex ions are selected from a group consisted of group I, group II, group III, group IV elements of periodic table, and sodium and include all metal elements of a chalcogenide semiconductor material.
    Type: Application
    Filed: April 3, 2012
    Publication date: November 8, 2012
    Inventors: Yueh-Chun Liao, Feng-Yu Yang, Ching Ting
  • Publication number: 20120280226
    Abstract: Optically sensitive devices include a device comprising a first contact and a second contact, each having a work function, and an optically sensitive material between the first contact and the second contact. The optically sensitive material comprises a p-type semiconductor, and the optically sensitive material has a work function. Circuitry applies a bias voltage between the first contact and the second contact. The optically sensitive material has an electron lifetime that is greater than the electron transit time from the first contact to the second contact when the bias is applied between the first contact and the second contact. The first contact provides injection of electrons and blocking the extraction of holes. The interface between the first contact and the optically sensitive material provides a surface recombination velocity less than 1 cm/s.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 8, 2012
    Inventors: Igor Constantin Ivanov, Edward Hartley Sargent, Hui Tian
  • Publication number: 20120276682
    Abstract: A system for large scale manufacture of thin film photovoltaic cells includes a chamber comprising a plurality of compartments in a common vacuum ambient therein. Additionally, the system includes one or more shutter screens removably separating each of the plurality of compartments. The system further includes one or more transfer tools configured to transfer a substrate from one compartment to another without breaking the common vacuum ambient. The substrate is optically transparent and is characterized by a lateral dimension of about 1 meter or greater for a solar module. Embodiments of the invention provide compartments configured to subject the substrate to one or more thin film processes to form a Cu-rich Cu—In composite material overlying the substrate and at least one of the plurality of compartments is configured to subject the Cu-rich Cu—In composite material to a thermal process to form a chalcogenide structured material.
    Type: Application
    Filed: April 25, 2012
    Publication date: November 1, 2012
    Applicant: STION CORPORATION
    Inventors: Howard W. H. Lee, Chester A. Farris, III
  • Publication number: 20120266945
    Abstract: A thin-film component comprising a film structure and an electrically conductive protection device is disclosed, together with and a method for the production and use thereof.
    Type: Application
    Filed: August 24, 2010
    Publication date: October 25, 2012
    Inventors: Philippe Letocart, Dang Cuong Phan, Dana Pakosch, Jean-Christophe Giron, Pascal Remy
  • Publication number: 20120266952
    Abstract: A method of manufacturing a substrate for a photovoltaic cell, in which the high optical characteristic in a long-wavelength range available for the photovoltaic cell can be maintained, and at the same time, the amount of hazing can be increased. The method includes the step of forming a zinc oxide (ZnO) thin film layer doped with a dopant on a transparent substrate, and the step of controlling the surface structure of the zinc oxide thin film layer by etching the zinc oxide thin film layer using hydrogen plasma.
    Type: Application
    Filed: April 18, 2012
    Publication date: October 25, 2012
    Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.
    Inventors: YoungZo Yoo, SeoHyun Kim, Gun Sang Yoon
  • Publication number: 20120261656
    Abstract: A photodiode, a light sensor and a fabricating method thereof are disclosed. An n-type semiconductor layer and an intrinsic semiconductor layer of the photodiode respectively comprise n-type amorphous indium gallium zinc oxide (IGZO) and intrinsic IGZO. The oxygen content of the intrinsic amorphous IGZO is greater than the oxygen content of the n-type amorphous IGZO. A light sensor comprise the photodiode is also disclosed.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 18, 2012
    Applicant: E INK HOLDINGS INC.
    Inventors: Fang-An SHU, Yao-Chou TSAI, Ted-Hong SHINN
  • Publication number: 20120258554
    Abstract: A process for recycling a support substrate of a material substantially transparent to at least a wavelength of electromagnetic radiation. The process includes providing an initial substrate; forming an intermediate layer on a bonding face of the support substrate having an initial roughness, with the intermediate layer being of a material substantially transparent to at least a wavelength of electromagnetic radiation; forming an electromagnetic radiation absorbing layer either on the bonding face of the initial substrate or on the intermediate layer; bonding the initial substrate to the support substrate via the electromagnetic radiation absorbing layer; and irradiating the electromagnetic radiation absorbing layer through the support substrate and the intermediate layer to induce separation of the support substrate from the initial substrate.
    Type: Application
    Filed: December 15, 2009
    Publication date: October 11, 2012
    Applicant: SOITEC
    Inventor: Anne Laure Belle
  • Publication number: 20120238053
    Abstract: In one example embodiment, a method includes depositing one or more thin-film layers onto a substrate. More particularly, at least one of the thin-film layers comprises at least one electropositive material and at least one of the thin-film layers comprises at least one chalcogen material suitable for forming a chalcogenide material with the electropositive material. The method further includes annealing the one or more deposited thin-film layers at an average heating rate of or exceeding 1 degree Celsius per second. The method may also include cooling the annealed one or more thin-film layers at an average cooling rate of or exceeding 0.1 degrees Celsius per second.
    Type: Application
    Filed: April 10, 2012
    Publication date: September 20, 2012
    Applicant: AQT SOLAR, INC.
    Inventors: Erol Girt, Mariana Rodica Munteanu
  • Publication number: 20120235139
    Abstract: A suspension or solution for an organic optoelectronic device is disclosed. The composition of the suspension or solution includes at least one kind of micro/nano transition metal oxide and a solvent. The composition of the suspension or solution can selectively include at least one kind of transition metal oxide ions or a precursor of transition metal oxide. Moreover, the method of making and applications of the suspension or solution are also disclosed.
    Type: Application
    Filed: May 29, 2012
    Publication date: September 20, 2012
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: JING-SHUN HUANG, CHING-FUH LIN
  • Publication number: 20120214274
    Abstract: The present invention discloses a solar cell having a multi-layered structure that is used to generate, transport, and collect electric charges. The multi-layered nanostructure comprises a cathode, a conducting metal layer, a photo-active layer, a hole-transport layer, and an anode. The photo-active layer comprises a tree-like nanostructure array and a conjugate polymer filler. The tree-like nanostructure array is used as an electron acceptor while the conjugate polymer filler is as an electron donor. The tree-like nanostructure array comprises a trunk part and a branch part. The trunk part is formed in-situ on the surface of the conducting metal layer and is used to provide a long straight transport pathway to transport electrons. The large contact area between the branch part and the conjugate polymer filler provides electron-hole separation.
    Type: Application
    Filed: May 3, 2012
    Publication date: August 23, 2012
    Applicant: National Taiwan University
    Inventors: WEI-FANG SU, CHUN-WEI CHEN, JIH-JEN WU, YUN-YUE LIN
  • Publication number: 20120205649
    Abstract: A photoelectric conversion device includes circuit portions disposed on a substrate, a first electrode electrically connected to one of the circuit portions, an optically transparent second electrode opposing the first electrode, and a photoelectric conversion portion disposed between the first electrode and the second electrode. The photoelectric conversion portion has a multilayer structure including a light absorption layer made of a p-type compound semiconductor film having a chalcopyrite structure, an amorphous oxide semiconductor layer, and a window layer made of an n-type semiconductor film.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 16, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yasunori HATTORI, Tomotaka MATSUMOTO, Tsukasa EGUCHI
  • Publication number: 20120205615
    Abstract: An organic photovoltaic cell (10) of the present invention includes an active layer (40) containing an organic compound and being provided between a pair of electrodes of a first electrode (32) and a second electrode (34), and because the active layer contains metallic oxide nano-particles wearing a carbon material on its surface, the organic photovoltaic cell can be manufactured from an inexpensive material.
    Type: Application
    Filed: October 22, 2010
    Publication date: August 16, 2012
    Inventors: Takahiro Seike, Toshihiro Ohnishi, Yutaka Ito
  • Publication number: 20120202315
    Abstract: Embodiments of the invention generally provide methods for forming amorphous silicon-based photovoltaic devices, such as solar cells, by utilizing deposition and plasma treatment steps during a plasma-enhanced chemical vapor deposition (PE-CVD) process. In one embodiments, the method includes exposing a transparent conductive oxide (TCO) layer disposed on a substrate to hydrogen plasma during pretreatment, forming a p-type ?-Si film on the TCO layer, forming an ?-Si intrinsic film on the p-type ?-Si film during a PE-CVD process, and forming an n-type ?-Si film on the ?-Si intrinsic film. In some examples, the PE-CVD process includes depositing an ?-Si intrinsic layer during a deposition step, treating the ?-Si intrinsic layer to form a treated ?-Si intrinsic layer during a plasma treatment step, and sequentially repeating the deposition step and the plasma treatment step until obtaining a desired thickness of the ?-Si intrinsic film containing a plurality of treated ?-Si intrinsic layers.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 9, 2012
    Applicant: APPLIED MATERIALS, INC.
    Inventors: HARRY SMITH WHITESELL, III, Gregory Robert Alcott
  • Publication number: 20120199826
    Abstract: Two light receiving elements are formed on a support substrate. A first light receiving element is formed of a p-type layer, an n-type layer, a light absorption semiconductor layer, an anode electrode, a cathode electrode, a protection film, etc. A second light receiving element is formed of a p-type layer, an n-type layer, a transmissive film, an anode electrode, a cathode electrode, a protection film, etc. The light absorption semiconductor layer absorbs light in a wavelength range ? and disposed closer to the light receiving surface than is the pn junction region. The transmissive film has no light absorption range and disposed closer to the light receiving surface than is the pn junction region. The amount of light in the wavelength range ? is measured through computation using a detection signal from the first light receiving element and a detection signal from the second light receiving element.
    Type: Application
    Filed: October 14, 2011
    Publication date: August 9, 2012
    Applicant: ROHM CO., LTD.
    Inventors: Ken NAKAHARA, Shunsuke AKASAKA, Koki SAKAMOTO, Tetsuo FUJII, Shunsuke FURUSE, Soichiro ARIMURA
  • Publication number: 20120192941
    Abstract: Thin film photovoltaic cells and methods of manufacturing such cells that include one or more diffusion barrier layers configured to provide a relatively smooth growth surface for subsequent deposition of a p-type semiconductor layer. Diffusion barrier layers according to the present teachings may be amorphous, microcrystalline or nanocrystalline layers of materials including molybdenum, conductive oxides, conductive nitrides, conductive carbides, or mixtures thereof. In some cases a diffusion barrier layer may be configured to have surface roughness less than a predetermined threshold value.
    Type: Application
    Filed: January 16, 2012
    Publication date: August 2, 2012
    Applicant: Global Solar Energy, Inc.
    Inventors: Urs Schoop, Walter Stoss, Nguyet Nguyen, Scott Wiedeman
  • Publication number: 20120192939
    Abstract: This disclosure relates to structures for the conversion of light into energy. More specifically, the disclosure describes devices for conversion of light to electricity using ordered arrays of semiconductor wires coated in a wider band-gap material.
    Type: Application
    Filed: March 23, 2011
    Publication date: August 2, 2012
    Applicant: THE CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Adele Tamboli, Daniel B. Turner-Evans, Manav Malhotra, Harry A. Atwater
  • Publication number: 20120180870
    Abstract: A photoelectric conversion device includes a layered structure formed on a substrate including a first electrode, a photoelectric conversion semiconductor layer and a second electrode, the photoelectric conversion semiconductor layer being mainly composed of a compound semiconductor containing group Ib, group IIIb and group VIb elements, and containing an alkaline(-earth) metal, wherein the alkaline(-earth) metal concentration distribution in the photoelectric conversion layer in the thickness direction includes a valley with the lowest alkaline(-earth) metal concentration and an area with an alkaline(-earth) metal concentration higher than that at the valley, the area being nearer to the substrate from the valley, and wherein Expressions (1) and (2) below are satisfied: 1.0×10?6?a [mol/cc]?2.0×10?5??(1) and 1.5?b/a?4.
    Type: Application
    Filed: September 30, 2010
    Publication date: July 19, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Kana Yamamoto
  • Patent number: 8222635
    Abstract: An electronic device includes at least a substrate, an area on the substrate which has to be protected against moisture and/or oxygen, at least one contact, and an encapsulation layer system including at least a first inorganic layer. The at least one contact extends from the sealed area to a part of the substrate not sealed by the encapsulation layer system. The contact includes a shunt, which is an interruption bridged by an electrically conductive bridge. The first inorganic layer of the encapsulation system is applied so that it is in direct physical contact with the electrically conductive bridge. The bridge has a structure and shape which can be sealingly covered by the encapsulation layer system and is made from a material through which no moisture and/or oxygen can penetrate.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: July 17, 2012
    Assignee: OTB Solar B.V.
    Inventors: Bas Jan Emile Van Rens, Ruediger Lange
  • Publication number: 20120175636
    Abstract: According to example embodiments, a photodiode system may include a substrate, and at least one photodiode in the substrate, and a wideband gap material layer on a first surface of the substrate. The at least one photodiode may be between an insulating material in a horizontal plane. According to example embodiments, a back-side-illumination (BSI) CMOS image sensor and/or a solar cell may include a photodiode device. The photodiode device may include a substrate, at least one photodiode in the substrate, a wide bandgap material layer on a first surface of the substrate, and an anti-reflective layer (ARL) on the wide bandgap material layer.
    Type: Application
    Filed: November 21, 2011
    Publication date: July 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hisanori Ihara
  • Publication number: 20120174957
    Abstract: To provide a photoelectric conversion device having a high photoelectric conversion efficiency, a photoelectric conversion device 21 includes a substrate 1, a plurality of lower electrodes 2 on the substrate 1 comprising a metal element, a plurality of photoelectric conversion layers 33 comprising a chalcogen compound semiconductor formed on the plurality of lower electrodes 2 and separated from one another on the lower electrodes 2, a metal-chalcogen compound layer 8 comprising the metal element and a chalcogen element included in the chalcogen compound semiconductor formed between the lower electrode 2 and the photoelectric conversion layer 33, an upper electrode 5 formed on the photoelectric conversion layer 33, and a connection conductor 7 electrically connecting, in a plurality of the photoelectric conversion layers 33, the upper electrode 5 to the lower electrode 2 without interposition of the metal-chalcogen compound layer 8.
    Type: Application
    Filed: September 29, 2010
    Publication date: July 12, 2012
    Applicant: KYOCERA CORPORATION
    Inventors: Daisuke Nishimura, Toshifumi Sugawara, Ken Nishiura, Norihiko Matsushima, Yosuke Inomata, Hisao Arimune, Tsuyoshi Uesugi
  • Publication number: 20120168745
    Abstract: In a photosensor and a method of manufacturing the same, the photosensor comprises: an intrinsic silicon layer formed on a substrate; a P-type doped region formed in a same plane with the intrinsic silicon layer; and an oxide semiconductor layer formed on or under the intrinsic silicon layer, and overlapping an entire region of the intrinsic silicon layer.
    Type: Application
    Filed: September 22, 2011
    Publication date: July 5, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jae-Hwan Oh, Won-Kyu Lee, Seong-Hyun Jin, Young-Jin Chang, Jae-Beom Choi
  • Publication number: 20120171808
    Abstract: An electrochemical cell and a method of manufacturing the same are provided. The electrochemical cell comprising: a first conductive layer; a metal oxide layer formed on the first conductive layer, the metal oxide layer comprising a plurality of adjacent metal oxide cells, spaced from one another; a functional dye layer formed on the metal oxide layer; a second conductive layer; and an electrolyte between the functional dye layer and the second conductive layer, wherein at least one of the first and second conductive layers is transparent, and wherein the metal oxide layer is formed from a metal oxide particle dispersion liquid.
    Type: Application
    Filed: March 14, 2012
    Publication date: July 5, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Barry McGREGOR, Masaya ISHIDA
  • Publication number: 20120153295
    Abstract: Radiation detector. The detector includes an ionic junction having an ionically bonded wide band gap material having a first region dominated by positively charged ionic defects in intimate contact with a second region dominated by negatively charged ionic defects forming depleted regions on both sides of the junction resulting in a built-in electric field. The detector also includes an ionic junction having a first ionically bonded wide band gap material dominated by positively charged ionic defects in intimate contact with a second ionically bonded wide band gap material dominated by negatively charged ionic defects forming depleted regions on both sides of the junction resulting in a built-in electric field. Circuit means are provided to establish a voltage across the junction so that radiation impinging upon the junction will cause a current to flow in the circuit.
    Type: Application
    Filed: February 25, 2011
    Publication date: June 21, 2012
    Applicant: Massachusetts Institute of Technology
    Inventors: Harry L. Tuller, Sean R. Bishop
  • Publication number: 20120156585
    Abstract: A process is provided for etching a silicon-containing substrate. In the process, the surface of the substrate is cleaned. A film of alumina is deposited on the cleaned substrate surface. A silver film is deposited above the film of alumina. An etchant comprising HF is contacted with the silver film.
    Type: Application
    Filed: November 14, 2011
    Publication date: June 21, 2012
    Inventors: Faris Modawar, Jeff Miller, Mike Jura, Brian Murphy, Marcie Black, Brent A. Buchine
  • Publication number: 20120146016
    Abstract: A wafer-scale x-ray detector and a method of manufacturing the same are provided. The wafer-scale x-ray detector includes: a seamless silicon substrate electrically connected to a printed circuit substrate; a chip array having a plurality of pixel pads formed on a central region thereof and a plurality of pin pads formed at edges thereof on the seamless silicon substrate; a plurality of pixel electrodes formed to correspond to the pixel pads; vertical wirings and horizontal wirings formed to compensate a difference of regions expanded towards the pixel electrodes from the pixel pads between the chip array and the pixel electrodes; a redistribution layer having an insulating layer to separate the vertical wirings and the horizontal wirings; and a photoconductor layer and a common electrode which cover the pixel electrodes on the redistribution layer.
    Type: Application
    Filed: May 17, 2011
    Publication date: June 14, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-chul Park, Chang-jung Kim, Sang-wook Kim, Sun-il Kim
  • Publication number: 20120139876
    Abstract: A light sensing circuit using an oxide semiconductor transistor, a method of manufacturing the light sensing circuit, and an optical touch panel including the light sensing circuit. Because the light sensing circuit includes only one light sensor transistor and one switch transistor formed on the same substrate, a structure of the light sensing circuit is simplified. Furthermore, because the light sensor transistor and the switch transistor have the same structure, a method of manufacturing the light sensing circuit is also simplified. Also, since an optical touch panel or an image acquisition apparatus using the light sensing circuit uses the light sensing circuit having a simple structure and does not use a capacitor, the optical touch panel or the image acquisition apparatus may be made thinner and larger.
    Type: Application
    Filed: June 21, 2011
    Publication date: June 7, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-hun Jeon, I-hun Song, Seung-eon Ahn, Chang-jung Kim
  • Publication number: 20120138118
    Abstract: A dye-sensitized solar cell includes a base material that functions as an electrode, has flexibility, and has a porous layer, containing a dye-sensitizer-supported fine particle of a metal oxide semiconductor on one surface thereof. A counter electrode base material is arranged to oppose the base material for dye sensitized solar cell, functions as an electrode, and has flexibility. A solid electrolyte layer is provided between the base material for dye-sensitized solar cell and the counter electrode base material and contacts the porous layer. Among the base materials, at least one has transparency; and at least one has an insulating layer provided on a surface thereof. The insulating layer is provided in a region a region where the porous layer is formed, and where the base materials are opposed to each other. The insulating layer has an external communication portion that leads from an inside of the porous layer-forming region to outside.
    Type: Application
    Filed: July 6, 2010
    Publication date: June 7, 2012
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Naohiro Obonai, Ryo Fujiwara
  • Publication number: 20120115271
    Abstract: This invention relates to the field of dye-sensitized solar cells and discloses a method for reducing the temperature necessary for sintering the metal oxide paste coating the electrode.
    Type: Application
    Filed: March 9, 2010
    Publication date: May 10, 2012
    Applicant: BANGOR UNIVERSITY
    Inventors: Peter Holliman, Arthur Connell
  • Publication number: 20120098028
    Abstract: A photoelectric conversion element in accordance with an embodiment includes a photoelectric conversion layer, a cathode electrode, and an anode electrode. The cathode electrode is arranged on one surface of the photoelectric conversion layer and includes monolayer graphene and/or multilayer graphene in which a portion of carbon atoms is substituted with at least nitrogen atoms. The anode electrode is arranged on the other surface of the photoelectric conversion layer.
    Type: Application
    Filed: September 18, 2011
    Publication date: April 26, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Katsuyuki NAITO
  • Publication number: 20120080092
    Abstract: Embodiments of the invention provide a method of forming a doped gallium arsenide based (GaAs) layer from a solution based precursor. The doped gallium arsenide based (GaAs) layer formed from the solution based precursor may assist solar cell devices to improve light absorption and conversion efficiency. In one embodiment, a method of forming a solar cell device includes forming a first layer with a first type of dopants doped therein over a surface of a substrate, forming a GaAs based layer on the first layer, and forming a second layer with a second type of dopants doped therein on the GaAs based layer.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 5, 2012
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Kaushal K. Singh, Robert Jan Visser, Srikant Rao, Bhaskar Kumar, Claire J. Carmalt, Ranga Rao Arnepalli, Omkaram Nalamasu, Gaurav Saraf, Sanjayan Sathasivam, Christopher Stuart Blackman
  • Publication number: 20120073622
    Abstract: Methods of producing photo-voltaic devices include spray coating deposition of metal chalcogenides, contact lithographic methods and/or metal ion injection. Photo-voltaic devices include devices made by the methods, tandem photo-voltaic devices and bulk junction photovoltaic devices.
    Type: Application
    Filed: June 4, 2010
    Publication date: March 29, 2012
    Applicant: The Regents of the University of California
    Inventors: Yang Yang, Wei-Jen Hou, Bao Lei, Shenghan Li
  • Publication number: 20120074463
    Abstract: Provided is a semiconductor wafer including: a base wafer containing silicon; an inhibitor that has been formed on the base wafer, has an aperture in which a surface of the base wafer is exposed, and inhibits crystal growth; and a light-absorptive structure that has been formed inside the aperture in contact with a surface of the base wafer exposed inside the aperture, where the light-absorptive structure includes a first semiconductor and a second semiconductor.
    Type: Application
    Filed: December 2, 2011
    Publication date: March 29, 2012
    Applicants: National Institute of Advanced Industrial Science and Technology, SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masahiko HATA, Taro ITATANI
  • Publication number: 20120073633
    Abstract: Processes for making a thin film solar cell on a substrate by providing a substrate coated with an electrical contact layer, depositing an ink onto the contact layer of the substrate, wherein the ink contains an alkali ion source compound suspended or dissolved in a carrier along with photovoltaic absorber precursor compounds, and heating the substrate. The alkali ion source compound can be MalkMB(ER)4 or Malk(ER). The processes can be used for CIS or CIGS.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 29, 2012
    Applicant: Precursor Energetics, Inc.
    Inventors: Kyle L. Fujdala, Zhongliang Zhu, David Padowitz, Paul R. Markoff Johnson, Wayne A. Chomitz
  • Publication number: 20120068207
    Abstract: Provided is an optical device including a base wafer containing silicon, a plurality of seed crystals disposed on the base wafer, and a plurality of Group 3-5 compound semiconductors lattice-matching or pseudo lattice-matching the plurality of seed crystals. At least one of the Group 3-5 compound semiconductors has a photoelectric semiconductor formed therein, the photoelectric semiconductor including a light emitting semiconductor that emits light in response to a driving current supplied thereto or a light receiving semiconductor that generates a photocurrent in response to light applied thereto, and at least one of the plurality of Group 3-5 compound semiconductors other than the Group 3-5 compound semiconductor having the photoelectric semiconductor has a heterojunction transistor formed therein.
    Type: Application
    Filed: December 2, 2011
    Publication date: March 22, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masahiko HATA, Sadanori Yamanaka, Tomoyuki Takada
  • Patent number: 8138567
    Abstract: Optically sensitive devices include a device comprising a first contact and a second contact, each having a work function, and an optically sensitive material between the first contact and the second contact. The optically sensitive material comprises an n-type semiconductor, and the optically sensitive material has a work function. Circuitry applies a bias voltage between the first contact and the second contact. The optically sensitive material has an electron lifetime that is greater than the electron transit time from the first contact to the second contact when the bias is applied between the first contact and the second contact. The first contact provides injection of electrons and blocking the extraction of holes. The interface between the first contact and the optically sensitive material provides a surface recombination velocity less than 1 cm/s.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: March 20, 2012
    Assignee: InVisage Technologies, Inc.
    Inventors: Igor Constantin Ivanov, Edward Hartley Sargent, Hui Tian
  • Publication number: 20120058593
    Abstract: The present invention discloses a micro/nanostructure PN junction diode array thin-film solar cell and a method for fabricating the same, wherein a microstructure or sub-microstructure PN junction diode array, such as a nanowire array or a nanocolumns array, is transferred from a source-material wafer to two pieces of transparent substrates, which are respectively corresponding to two electric conduction types, to fabricate a thin-film solar cell. In the present invention, the micro/nanostructure PN junction diode array has advantages of a fine-quality crystalline semiconductor, and the semiconductor substrate can be reused to save a lot of semiconductor material. Besides, the present invention can make the best of sunlight energy via stacking up the solar cells made of different types of semiconductor materials to absorb different wavebands of the sunlight spectrum.
    Type: Application
    Filed: November 14, 2011
    Publication date: March 8, 2012
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: CHING-FUH LIN, JIUN-JIE CHAO, SHU-CHIA SHIU
  • Patent number: 8129211
    Abstract: A dye-sensitized solar cell comprising a semiconductor electrode prepared by spraying a metal oxide nanoparticle dispersion on a conductive substrate using an electric field to form a metal oxide nanoball layer which is composed of agglomerated metal oxide nanoparticles and has a high porosity and specific surface area, exhibits improved photoelectric properties even when a gel or solid electrolyte is used.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: March 6, 2012
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Young Kim, Seong Mu Jo, Sung-Yeon Jang, Byung-Hong Lee, Hyun-Ju Kim
  • Publication number: 20120042951
    Abstract: The present invention relates to a method for decreasing or increasing the band gap shift in the production of photovoltaic devices by means of coating a substrate with a formulation containing a silicon compound, e.g., in the production of a solar cell comprising a step in which a substrate is coated with a liquid-silane formulation, the invention being characterized in that the formulation also contains at least one germanium compound. The invention further relates to the method for producing such a photovoltaic device.
    Type: Application
    Filed: April 28, 2010
    Publication date: February 23, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Bernhard Stuetzel, Wolfgang Fahrner
  • Publication number: 20120037201
    Abstract: A method of manufacturing a photovoltaic device may include concurrently transforming a transparent conductive oxide layer from a substantially amorphous state to a substantially crystalline state and forming one or more semiconductor layers.
    Type: Application
    Filed: August 11, 2011
    Publication date: February 16, 2012
    Inventors: Benyamin Buller, Markus Gloeckler, Chungho Lee, Rui Shao, Yu Yang, Zhibo Zhao
  • Publication number: 20120024366
    Abstract: A thin film solar cell structure and the fabricating method thereof are disclosed. A passivation layer is embedded into the thin film solar cell structure to be in contact with an absorbing layer. The interface trap density of the absorbing layer is reduced by the surface electric field of the passivation layer. The invention helps improve the power conversion efficiency and protect the absorbing layer.
    Type: Application
    Filed: October 26, 2010
    Publication date: February 2, 2012
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Chee Wee Liu, Wen Wei Hsu, Tzu Huan Cheng, Wei Shuo Ho
  • Publication number: 20120028405
    Abstract: A method for providing a semiconductor material for photovoltaic devices, the method includes providing a sample of iron disilicide comprising approximately 90 percent or greater of a beta phase entity. The sample of iron disilicide is characterized by a substantially uniform first particle size ranging from about 1 micron to about 10 microns. The method includes combining the sample of iron disilicide and a binding material to form a mixture of material. The method includes providing a substrate member including a surface region and deposits the mixture of material overlying the surface region of the substrate. In a specific embodiment, the mixture of material is subjected to a post-deposition process such as a curing process to form a thickness of material comprising the sample of iron disilicide overlying the substrate member. In a specific embodiment, the thickness of material is characterized by a thickness of about the first particle size.
    Type: Application
    Filed: October 6, 2011
    Publication date: February 2, 2012
    Applicant: Stion Corporation
    Inventors: Howard W.H. Lee, Frederic Victor Mikulec, Bing Shen Gao, Jinman Huang