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公开(公告)号：US20180076404A1
公开(公告)日：2018-03-15
申请号：US15561039
申请日：2016-03-18
Applicant: CENTER FOR ADVANCED SOFT ELECTRONICS
Inventor： Kilwon CHO , Haena KIM , Boseok KANG
Abstract: Disclosed is a graphene laminate including a first graphene layer, containing an electron-donating functional group, and a second graphene layer, disposed on the first graphene layer and configured to include graphene, wherein the second graphene layer is n-doped with the first graphene layer. Thereby, graphene is doped with amino-group-modified graphene, thus preventing the transparency of graphene from decreasing, and the extent of doping of graphene can be adjusted, and the doping effect can last a long time even without any protective layer.
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2.发明申请公开(公告)号：US20190181343A1
公开(公告)日：2019-06-13
申请号：US16168885
申请日：2018-10-24
Inventor： Kilwon CHO , Jinsung KIM , Boseok KANG
Abstract: Disclosed is a method of manufacturing a surface-modified polymer film, including forming a hydroxyl group (—OH) on the surface of a polymer film by subjecting the polymer film to light irradiation and surface treatment with a photoacid generator. The polymer film can be introduced with a hydroxyl group (—OH) group using a photoacid generator, thereby modifying the surface of the polymer film without damage to the polymer film. Also, an organic electronic device including the surface-modified polymer film can be improved in electrical characteristics and stability.
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公开(公告)号：US20170210629A1
公开(公告)日：2017-07-27
申请号：US15324297
申请日：2015-05-15
Applicant: CENTER FOR ADVANCED SOFT ELECTRONICS
Inventor： Kilwon CHO , Hyo Chan LEE , Eun Ho LEE
CPC classification number: C01B32/186 , B82Y30/00 , B82Y40/00 , C01B2204/04 , C01B2204/22 , H01B13/0036 , Y10S977/734 , Y10S977/843 , Y10S977/932
Abstract: Disclosed is a method of producing graphene, which includes bringing a metal catalyst into contact with hydrogen gas (Step a), bringing the metal catalyst in Step a into contact with at least one selected from among a hydrocarbon gas, nitrogen gas, and an inert gas (Step b), and forming graphene on the metal catalyst by bringing the metal catalyst in Step b into contact with hydrogen gas and a hydrocarbon gas (Step c), whereby the number of layers of graphene can be variously controlled as needed, regardless of the initial surface roughness of a metal catalyst layer, and also, the time required to form graphene can be shortened, thus reducing processing costs.
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公开(公告)号：US20240417240A1
公开(公告)日：2024-12-19
申请号：US18695090
申请日：2022-09-01
Applicant: CENTER FOR ADVANCED SOFT ELECTRONICS , POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
Inventor： Kilwon CHO , Wonkyu MOON , Siyoung LEE , Junsoo KIM
Abstract: Proposed are an attachable microphone and a manufacturing method therefor. The attachable microphone includes a substrate (100) including a back chamber (110) and a first frame member (120), a back plate part (200) being disposed on the substrate (100) and including a plurality of first through holes (210) and a back plate (220), a first electrode part (300) being disposed on the back plate part (200) and having a plurality of second through holes (310) and a first electrode member (320), a support part (400) being disposed on the first electrode part (300) and including a front chamber (410) and a second frame member (420), a second electrode part (500) being disposed on the support part (400) and including a second electrode member (510), and a diaphragm (600) being disposed on the second electrode part (500) and including a thin film (610).
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公开(公告)号：US20210211794A1
公开(公告)日：2021-07-08
申请号：US16973405
申请日：2019-03-08
Inventor： Kilwon CHO , Siyoung Lee , Yoonyoung CHUNG
Abstract: Proposed is a vibration sensor including: a substrate; a first electrode positioned on the substrate; a support positioned on the first electrode and including a cylindrical hollow hole; and a diaphragm including a thin film positioned on the support and a second electrode positioned on the thin film. According to the present disclosure, it is possible to manufacture a skin-attachable vibration sensor that is attached to a user's neck to detect vibration acceleration in user's neck skin, thus exhibiting a uniform and high sensitivity to a user's voice over the frequency range of the human voice. In addition, the sensor sensitively detects a user's voice through neck skin vibrations rather than through air, thus being free from the influence of external noise or wind, and can recognize the user's voice even in a situation where a user's mouth is covered.
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Patent Agency Ranking
公开(公告)号：US20190378979A1
公开(公告)日：2019-12-12
申请号：US16189897
申请日：2018-11-13
Inventor： Kilwon CHO , Seon Baek LEE , Boseok KANG
Abstract: Disclosed is a method of manufacturing an organic semiconductor thin film, including preparing semiconductor ink containing a solvent, a low-molecular-weight organic semiconductor and a high-molecular-weight organic semiconductor and forming an organic semiconductor thin film vertically phase-separated by applying the semiconductor ink on a substrate through a bar-coating process using a bar. In the bar-coating process of the invention, the semiconductor ink blend is used, and the gap between the substrate and the bar is adjusted, thus controlling vertical phase separation. Also, the speed of the bar, the gap of which is adjusted, is regulated, thus controlling crystal growth, whereby the uniformity of the thin film is improved and thus a high-quality organic semiconductor crystalline thin film having a large area can be manufactured in a continuous process. Also, a flexible organic semiconductor transistor, having high stability and high charge mobility, can be provided using the organic semiconductor thin film.
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公开(公告)号：US20200083053A1
公开(公告)日：2020-03-12
申请号：US16567262
申请日：2019-09-11
Inventor： Kilwon CHO , Min Seok Yoo , Hyo Chan Lee
IPC: H01L21/285 , H01L21/02 , H01L21/263 , H01L23/532 , H01L29/16
Abstract: Disclosed is a method of manufacturing multilayer graphene, including (a) contacting of a metal substrate with a nonmetal element, (b) reduction through heat treatment, and (c) chemical vapor deposition of a graphene precursor on the metal substrate containing the nonmetal element dissolved therein, thereby manufacturing multilayer graphene that is doped with the nonmetal element on the metal substrate. In the multilayer graphene thus manufactured, the number of graphene layers and the work function are simultaneously adjusted by controlling the concentration of doped nonmetal element in a thickness direction of graphene through interactions related to the reduction of the nonmetal element dissolved in a copper catalyst and the growth of graphene, and moreover, the stacking structure of graphene is maintained and the optoelectronic properties of multilayer graphene can be controlled by simultaneously regulating graphene growth and doping during the synthesis procedure without additional processing.
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公开(公告)号：US20190013488A1
公开(公告)日：2019-01-10
申请号：US15833090
申请日：2017-12-06
Applicant: CENTER FOR ADVANCED SOFT ELECTRONICS
Inventor： Kilwon CHO , Boseok Kang , Seong Kyu Lee
Abstract: Disclosed is a nanopatch graphene composite, which includes graphene including a defect and a nanopatch positioned on the defect, and is configured such that a nanopatch is formed through a self-assembling process on the surface of graphene, thus improving the mechanical properties and durability of the graphene composite. Also, a flexible organic transistor, including the nanopatch graphene composite of the invention, is transparent and has high mechanical durability, thus exhibiting device stability, and the molecular alignment of the organic semiconductor layer growing on the nanopatch graphene composite is induced so as to become favorable for charge injection, thereby increasing the performance of the device.
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9.发明申请公开(公告)号：US20180346338A1
公开(公告)日：2018-12-06
申请号：US15867913
申请日：2018-01-11
Applicant: CENTER FOR ADVANCED SOFT ELECTRONICS
Inventor： Kilwon CHO , Min Seok YOO , Hyo Chan LEE
IPC: C01B32/186 , C23C16/26 , C23C14/34
Abstract: Disclosed is a method of synthesizing graphene, wherein a Cu—Ni thin film laminate including a copper thin film and a nickel thin film formed thereon is placed in a chemical vapor depositor, brought into contact with a graphene precursor and subjected to chemical vapor deposition (CVD), thus synthesizing thickness-controlled graphene on the copper thin film, whereby the thickness of multilayer graphene can be easily and reproducibly controlled by adjusting only nickel thickness and CVD time, and a process window for obtaining reproducible results can be widened due to self-limiting properties whereby the maximum thickness of graphene is obtained after a certain synthesis time due to the thickness-controlled nickel thin film. Also, carbon atoms absorbed to the nickel thin film reach the copper thin film opposite thereto through internal diffusion of the metal laminate to thus grow graphene via surface-mediated reaction thereon, thereby improving the uniformity of synthesized graphene.
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10.发明申请公开(公告)号：US20180190762A1
公开(公告)日：2018-07-05
申请号：US15740313
申请日：2016-07-19
Applicant: CENTER FOR ADVANCED SOFT ELECTRONICS
Inventor： Kilwon CHO , Yoonyoung CHUNG , Hyun Ho KIM
CPC classification number: H01L29/06 , H01L29/40 , H01L51/00 , H01L51/0097 , Y02E10/549
Abstract: Disclosed is a flexible substrate laminate including a flexible substrate and a base member configured to reduce strain of the flexible substrate on one surface of the flexible substrate. The flexible substrate laminate includes the base member for reducing surface strain to thus decrease the surface shear stress and surface strain thereof, thereby minimizing deterioration in the performance of a device. When the flexible substrate laminate is applied to various electronic devices, the electronic devices can exhibit improved bending resistance while the performance thereof is prevented from decreasing even after bending.
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