Patents by Inventor Hogyeong Yun
Hogyeong Yun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8981388Abstract: Provided are a solar cell and a method of manufacturing the same. The method includes: preparing a bottom substrate including sequentially stacked first and second portions, each of the first and second portions including a plurality of grains, wherein the maximum grain size of the second portion is less than the minimum grains size of the first portion; exposing the first portion of the bottom substrate by removing the second portion of the bottom substrate; and forming a photovoltaic conversion layer on the first portion of the bottom substrate.Type: GrantFiled: May 16, 2014Date of Patent: March 17, 2015Assignee: Electronics and Telecommunications Research InstituteInventor: Hogyeong Yun
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Publication number: 20140246080Abstract: Provided are a solar cell and a method of manufacturing the same. The method includes: preparing a bottom substrate including sequentially stacked first and second portions, each of the first and second portions including a plurality of grains, wherein the maximum grain size of the second portion is less than the minimum grains size of the first portion; exposing the first portion of the bottom substrate by removing the second portion of the bottom substrate; and forming a photovoltaic conversion layer on the first portion of the bottom substrate.Type: ApplicationFiled: May 16, 2014Publication date: September 4, 2014Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventor: Hogyeong YUN
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Patent number: 8765513Abstract: Provided are a solar cell and a method of manufacturing the same. The method includes: preparing a bottom substrate including sequentially stacked first and second portions, each of the first and second portions including a plurality of grains, wherein the maximum grain size of the second portion is less than the minimum grains size of the first portion; exposing the first portion of the bottom substrate by removing the second portion of the bottom substrate; and forming a photovoltaic conversion layer on the first portion of the bottom substrate.Type: GrantFiled: September 3, 2010Date of Patent: July 1, 2014Assignee: Electronics and Telecommunications Research InstituteInventor: Hogyeong Yun
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Patent number: 8299352Abstract: Provided is a dye-sensitized solar cell including a flexible electrode. The dye-sensitized solar cell includes: first and second electrodes facing each other, and an electrolyte layer interposed between the first and second electrodes, wherein the first electrode comprises a structure formed of conductive fibers, a nano-particle semiconductor oxide layer formed on a surface of the structure of the conductive fibers, and dye molecules adsorbed in the nano-particle semiconductor oxide layer.Type: GrantFiled: June 26, 2008Date of Patent: October 30, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Hunkyun Pak, Seungyup Lee, Mangu Kang, Yongseok Jun, Hogyeong Yun, Jong Hyeok Park, Jongdae Kim
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Patent number: 8211744Abstract: Provided are methods of forming a nano structure and method of forming a solar cell using the same. The method of forming the nano structure includes: preparing a template; ionizing a surface of the template; forming an oxide layer enclosing the template on the surface of the template; and removing the template.Type: GrantFiled: June 30, 2010Date of Patent: July 3, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Mi Hee Jung, Hogyeong Yun, Mangu Kang, Sanghee Kim, Hunkyun Pak
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Publication number: 20110308579Abstract: Provided are a solar cell and a method of manufacturing the same. The method includes: preparing a bottom substrate including sequentially stacked first and second portions, each of the first and second portions including a plurality of grains, wherein the maximum grain size of the second portion is less than the minimum grains size of the first portion; exposing the first portion of the bottom substrate by removing the second portion of the bottom substrate; and forming a photovoltaic conversion layer on the first portion of the bottom substrate.Type: ApplicationFiled: September 3, 2010Publication date: December 22, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventor: Hogyeong Yun
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Publication number: 20110124148Abstract: Provided are methods of forming a nano structure and method of forming a solar cell using the same. The method of forming the nano structure includes: preparing a template; ionizing a surface of the template; forming an oxide layer enclosing the template on the surface of the template; and removing the template.Type: ApplicationFiled: June 30, 2010Publication date: May 26, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Mi Hee JUNG, Hogyeong Yun, Mangu Kang, Sangee Kim, Hunkyun Pak
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Publication number: 20100300523Abstract: Provided are dye-sensitized solar cells in which a transparent conductive oxide is not used as a light receiving substrate and methods of fabricating the same. The dye-sensitized solar cell includes an upper electrode layer, which is disposed between a lower electrode layer and a photovoltaic conversion part and has through-holes, and a supporter disposed between the lower electrode layer and the light receiving substrate. The supporter may be a pore layer.Type: ApplicationFiled: April 29, 2010Publication date: December 2, 2010Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hogyeong Yun, Mangu Kang, Hunkyun Pak, ZinSig Kim
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Publication number: 20100139761Abstract: Provided are a dye-sensitized solar cell and a method of fabricating the same. The dye-sensitized solar cell includes a lower substrate, an upper substrate, a dielectric, a semiconductor electrode layer, a dye layer, and an electrolyte. The upper substrate is spaced from the lower substrate and has a light emitting surface facing a surface of the lower substrate and a light incident surface opposite to the light emitting surface. The dielectric is disposed on the surface of the lower substrate. The semiconductor electrode layer includes electrode dots disposed on the dielectric. The dye layer is disposed on surfaces of the electrode dots. The electrolyte is disposed between the lower substrate and the upper substrate.Type: ApplicationFiled: August 24, 2009Publication date: June 10, 2010Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hogyeong Yun, Yongseok Jun, Mangu Kang, Hunkyun Pak, Jongdae Kim
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Publication number: 20090211630Abstract: Provided are a dye-sensitized solar cell and a method of manufacturing the same. The dye-sensitized solar cell includes a semiconductor electrode and a counter electrode that face each other, and an electrolytic solution interposed therebetween, wherein the semiconductor electrode includes: a conductive substrate; an oxide semiconductor-conductor structure formed on the conductive substrate; and dye molecules layer adsorbed onto the surface of the oxide semiconductor. A dye-sensitized solar cell manufactured using the method can effectively prevent electrons transferred to the conductor and an electrolyte from recombining, thus having maximal photoelectron conversion efficiency.Type: ApplicationFiled: December 16, 2008Publication date: August 27, 2009Applicant: ELECTRONICS AND TELECOMUNICATIONS RESEARCH INSTITUTEInventors: Hogyeong YUN, Yongseok Jun, Mangu Kang, Hunkyun Pak, Jong Hyeok Park, Seungyup Lee, Jongdae Kim
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Publication number: 20090126784Abstract: Provided is a dye-sensitized solar cell including a flexible electrode. The dye-sensitized solar cell includes: first and second electrodes facing each other, and an electrolyte layer interposed between the first and second electrodes, wherein the first electrode comprises a structure formed of conductive fibers, a nano-particle semiconductor oxide layer formed on a surface of the structure of the conductive fibers, and dye molecules adsorbed in the nano-particle semiconductor oxide layer.Type: ApplicationFiled: June 26, 2008Publication date: May 21, 2009Applicant: Electronics and Telecommunications Research InstituteInventors: Hunkyun PAK, Seungyup LEE, Mangu KANG, Yongseok JUN, Hogyeong YUN, Jong Hyeok PARK, Jongdae KIM
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Publication number: 20090101198Abstract: Provided are a dye-sensitized solar cell and a method of fabricating the same. The dye-sensitized solar cell includes a lower substrate and an upper substrate separated from each other, a semiconductor electrode layer on the lower substrate, a dye layer adsorbed onto a surface of the semiconductor electrode layer, and an electrolyte between the lower and upper substrates. Here, an upper surface of the lower substrate adjacent to the semiconductor electrode layer includes at least one recess for increasing a contact area between the semiconductor electrode layer and the lower substrate.Type: ApplicationFiled: October 17, 2008Publication date: April 23, 2009Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hogyeong YUN, Yong-Seok JUN, Mangu KANG, Hunkyun PAK, Jong-Dae KIM
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Patent number: 7009716Abstract: A system for monitoring an optical output/wavelength is employed to be used for a WDM system having a narrow channel space by structuring an etalon and photodiode as an integrated structure.Type: GrantFiled: March 15, 2004Date of Patent: March 7, 2006Assignee: Electronics and Telecommunications Research InstituteInventors: Jong-Deog Kim, Byung-Seok Choi, Jong-Hyun Lee, Hogyeong Yun, Kwang-Seong Choi, Jong-Tae Moon
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Publication number: 20050046868Abstract: A system for monitoring an optical output/wavelength is employed to be used for a WDM system having a narrow channel space by structuring an etalon and photodiode as an integrated structure.Type: ApplicationFiled: March 15, 2004Publication date: March 3, 2005Inventors: Jong-Deog Kim, Byung-Seok Choi, Jong-Hyun Lee, Hogyeong Yun, Kwang-Seong Choi, Jong-Tae Moon