Patents Assigned to Global Frontier Center for Multiscale Energy Systems
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Publication number: 20190134620Abstract: Disclosed is a method for preparing a carbon-supported metal oxide and/or alloy nanoparticle catalyst. According to the method, a carbon-supported metal oxide and/or alloy nanoparticle catalyst is prepared by depositing metal oxide and/or alloy nanoparticles on a water-soluble support and dissolving the metal oxide and/or alloy nanoparticles deposited on the water-soluble support in an anhydrous polar solvent containing carbon dispersed therein to support the metal oxide and/or alloy nanoparticles on the carbon. The anhydrous polar solvent has much lower solubility for the water-soluble support than water and is used to dissolve the water-soluble support.Type: ApplicationFiled: October 31, 2018Publication date: May 9, 2019Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMSInventors: Sung Jong YOO, Injoon JANG, So Young LEE, Hyun Seo PARK, Jin Young KIM, Jong Hyun JANG, Hyoung-Juhn KIM
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Publication number: 20190096590Abstract: An electronic device, such as, without limitation, a perovskite solar cell or a light emitting diode, includes an assembly including at least one electronic portion or component, and a composite coating layer covering at least part of the assembly including the at least one electronic portion or component. The composite coating layer includes a polymer material, such as, without limitation, PMMA or PMMA-PU, having nanoparticles, such as, without limitation, reduced graphene oxide or SiO2, embedded therein. The electronic device may further include a second coating layer including a second polymer material (such as, without limitation, PMMA or PMMA-PU without nanoparticles) positioned between the coating layer and the assembly.Type: ApplicationFiled: May 9, 2017Publication date: March 28, 2019Applicants: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION, GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMSInventors: Jung-Kun Lee, Gillsang Han
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Publication number: 20180315939Abstract: The present disclosure relates to a method of fabricating a perovskite solar cell, including: forming an electron transport layer on a substrate; forming a light absorbing layer containing a perovskite material on the electron transport layer; forming a hole transport layer on the light absorbing layer; and forming an electrode on the hole transport layer. Herein, the forming of the light absorbing layer is performed by impregnating the substrate on which the electron transport layer is formed in a nonpolar solvent and performing a heat treatment thereto.Type: ApplicationFiled: April 17, 2018Publication date: November 1, 2018Applicants: Research & Business Foundation Sungkyunkwan University, Global Frontier Center for Multiscale Energy SystemsInventors: Hyun Suk JUNG, Byeong Jo KIM, Dong Geon LEE, SangMyeong LEE, Gi Joo BANG, Min-Cheol KIM, Ji Hyun BAEK
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Patent number: 9927311Abstract: A high-sensitivity sensor containing cracks is provided. The high-sensitivity sensor is obtained by forming microcracks on a conductive thin film, which is formed on top of a support, wherein the microcracks form a micro joining structure in which the microcracks are electrically changed, short-circuited or open, thereby converting external stimuli into electric signals by generating a change in a resistance value. The high-sensitivity sensor can be useful in a displacement sensor, a pressure sensor, a vibration sensor, artificial skin, a voice recognition system, and the like.Type: GrantFiled: December 3, 2014Date of Patent: March 27, 2018Assignees: Global Frontier Center-Multiscale Energy Systems, SNU R&DB Foundation, Research & Business Foundation Sungkyunkwan Univ.Inventors: Daeshik Kang, Yong Whan Choi, Chanseok Lee, Kahp-Yang Suh, Tae-il Kim, Man Soo Choi
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Patent number: 9893367Abstract: Provided is an interlayer for a thin electrolyte solid oxide cell, a thin electrolyte solid oxide cell including the same, and a method of forming the same. In various embodiments, functional elements (a fuel electrode, an electrolyte and a cathode) of the solid oxide cell are formed by means of a thin film process, and thus a nanostructure of the catalyst is not seriously lost due to agglomeration, different from a powder process. Thus, it is possible to accomplish catalyst activation according to a high specific surface area.Type: GrantFiled: January 5, 2017Date of Patent: February 13, 2018Assignees: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMSInventors: Ji-Won Son, Thieu Cam Anh, Jongsup Hong, Hyoungchul Kim, Kyung Joong Yoon, Jong Ho Lee, Hae-Weon Lee, Byung Kook Kim
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Patent number: 9593427Abstract: Provided are a method for forming a pattern, and a catalyst and an electronic element using the method. The method for forming a pattern comprises the steps of: preparing, on a surface, a substrate sequentially including a photoconductive material layer and an oxide layer; making an area, on which a pattern is to be formed, on the oxide layer of the substrate, come into contact with an electrolyte; connecting the substrate and the electrolyte to a first electrode and a second electrode connected to a power source, respectively; and selectively irradiating light from a light source to the electrolyte and applying a voltage to the first electrode or the second electrode, thereby directly forming the pattern on the oxide layer of the substrate.Type: GrantFiled: July 25, 2013Date of Patent: March 14, 2017Assignees: SNU R&DB FOUNDATION, GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMSInventors: Taek Dong Chung, Sung Yul Lim
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Patent number: 9349976Abstract: The present invention relates to a process for preparing an electronic device comprising at least one layer selected from the group consisting of a upper electrode layer, a lower electrode layer, an organic layer and an inorganic layer, which comprises a step of introducing a nanoparticle layer or a nano/micro structure layer by adhering charged nanoparticles, before, after or during forming the layer.Type: GrantFiled: March 4, 2013Date of Patent: May 24, 2016Assignees: SNU R&DB Foundation, Global Frontier Center for Multiscale Energy SystemInventors: Changsoon Kim, Hyungchae Kim, Jongcheon Lee, Kyuhee Han, Hyangki Sung, Kinam Jung, Hoseop Choi, Kyungyeon Ha, Man Soo Choi
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Patent number: 9321633Abstract: The present invention relates to a process for producing a 3-dimensional structure assembled from nanoparticles by using a mask having a pattern of perforations, which comprises the steps of: in a grounded reactor, placing a mask having a pattern of perforations corresponding to a determined pattern at a certain distance above a substrate to be patterned, and then applying voltage to the substrate to form an electrodynamic focusing lens; and introducing charged nanoparticles into the reactor, the charged particles being guided to the substrate through the pattern of perforations so as to be selectively attached to the substrate with 3-dimensional shape. According to the process of the present invention, a 3-dimensional structure of various shapes can be produced without producing noise pattern, with high accuracy and high efficiency.Type: GrantFiled: March 4, 2013Date of Patent: April 26, 2016Assignees: Global Frontier Center for Multiscale Energy Systems, SNU R&DB FoundationInventors: Hoseop Choi, Man Soo Choi
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Patent number: 9222190Abstract: The present invention provides a 3-dimensional nanoparticle structure, wherein a plurality of structures formed by assembling nanoparticles is connected to form a bridge, and a gas sensor using the same.Type: GrantFiled: January 14, 2014Date of Patent: December 29, 2015Assignees: SNU R&DB Foundation, Global Frontier Center for Multiscale Energy SystemsInventors: Woongsik Nam, Yongjun Bae, Man Soo Choi
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Publication number: 20150236366Abstract: Provided is a flexible fuel cell.Type: ApplicationFiled: December 19, 2014Publication date: August 20, 2015Applicants: SNU R&DB Foundation, Global Frontier Center for Multiscale Energy SystemsInventors: Ik Whang CHANG, Jin Hwan LEE, Tae Hyun PARK, Suk Won CHA, Seung Hwan KO
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Publication number: 20140224315Abstract: The present invention relates to a method for manufacturing a nanoparticle structure by focused patterning of nanoparticles, and a nanoparticle structure obtained by the above method. The method of the present invention is characterized by comprising the steps of: first of all, accumulating ions generated by corona discharge on a substrate where a micro/nano pattern is formed; inducing charged nanoparticles and ions generated by spark discharge to the micro/nano pattern of the substrate; and then focused depositing on the micro/nano pattern. According to the method of the present invention, an elaborate nanoparticle structure, which has 3-dimensional shape having complicated structure, can be effectively manufactured.Type: ApplicationFiled: January 30, 2013Publication date: August 14, 2014Applicants: SNU R&DB Foundation, Global Frontier Center for Multiscale Energy SystemsInventors: Kinam Jung, Jung Suk Hahn, Petro Pikhitsa, Hoseop Choi, Kyungyeon Ha, Seung Ryul Noh, Woong Sik Kim, Man Soo Choi
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Publication number: 20140212641Abstract: The present invention relates to a process for producing a 3-dimensional structure assembled from nanoparticles by using a mask having a pattern of perforations, which comprises the steps of: in a grounded reactor, placing a mask having a pattern of perforations corresponding to a determined pattern at a certain distance above a substrate to be patterned, and then applying voltage to the substrate to form an electrodynamic focusing lens; and introducing charged nanoparticles into the reactor, the charged particles being guided to the substrate through the pattern of perforations so as to be selectively attached to the substrate with 3-dimensional shape. According to the process of the present invention, a 3-dimensional structure of various shapes can be produced without producing noise pattern, with high accuracy and high efficiency.Type: ApplicationFiled: March 4, 2013Publication date: July 31, 2014Applicants: Global Frontier Center for Multiscale Energy Systems, SNU R&DB FoundationInventors: Hoseop Choi, Man Soo Choi