公开(公告)号：US11527673B2

公开(公告)日：2022-12-13

申请号：US16333252

申请日：2017-11-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Doh Kwon Lee ,  In Ho Kim ,  Won Mok Kim ,  Jong Keuk Park ,  Taek Sung Lee ,  Doo Seok Jeong ,  Hyeon Seung Lee ,  Jeung Hyun Jeong

IPC: B82Y40/00 ,  H01L31/18 ,  H01L31/054 ,  B81C1/00 ,  H01L31/0236

Abstract: An embodiment includes a method of texturing a semiconductor substrate, a semiconductor substrate manufactured using the method, and a solar cell including the semiconductor substrate, the method including: forming metal nanoparticles on a semiconductor substrate, primarily etching the semiconductor substrate, removing the metal nanoparticles, and secondarily etching the primarily etched semiconductor substrate to form nanostructures.

公开(公告)号：US20200343309A1

公开(公告)日：2020-10-29

申请号：US16320932

申请日：2017-11-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Doh Kwon LEE ,  Yoon Hee Jang ,  In Ho Kim ,  Hee Sun Yun ,  Jeung Hyun Jeong

IPC: H01L27/30 ,  H01L27/28 ,  H01G9/20

Abstract: Disclosed are a monolithic solar cell and a method of manufacturing the same. More particularly, the present invention provides a monolithic solar cell including a first solar cell formed by sequentially stacking an electrode, a silicon substrate, and an n-type emitter layer; a junction layer formed on the an n-type emitter layer; an interfacial layer formed on the junction layer; and a second solar cell including a perovskite layer and integrated onto the interfacial layer. The interfacial layer according to the present invention may be pyrolyzed and thus partially or completely lost during a monolithic solar cell manufacturing process. In addition, by providing an interfacial layer between the two cells constituting a monolithic solar cell according to the present invention, charge transfer and recombination characteristics between the two cells can be improved and thus a monolithic solar cell having significantly improved photoelectric conversion efficiency can be provided.

公开(公告)号：US11495708B2

公开(公告)日：2022-11-08

申请号：US17067766

申请日：2020-10-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jeung Hyun Jeong ,  Hyeong Geun Yu ,  Jong Keuk Park ,  Won Mok Kim

IPC: H01L31/18 ,  H01L31/0468

Abstract: Provided is a method of fabricating a see-through thin film solar cell, the method including preparing a substrate including a molybdenum (Mo) layer on one surface, forming see-through patterns by selectively removing at least parts of the Mo layer, sequentially depositing a chalcogenide absorber layer, a buffer layer, and a transparent electrode layer on the substrate and the Mo layer including the see-through patterns, and forming a see-through array according to a shape of the see-through patterns by removing the chalcogenide absorber layer, the buffer layer, and the transparent electrode layer deposited on the see-through patterns, by irradiating a laser beam from under the substrate toward the transparent electrode layer.

公开(公告)号：US11333812B2

公开(公告)日：2022-05-17

申请号：US16509945

申请日：2019-07-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyeong Seok Lee ,  Doh Kwon Lee ,  Jeung Hyun Jeong ,  Won Mok Kim

IPC: G02B5/20 ,  G02B5/28 ,  G02B17/00 ,  G02B5/26 ,  G02B5/08

Abstract: A colored structure representing a back side-reflection color with metallic luster and high chroma when observed in a substrate incident mode greatly enhances light absorbance at a specific wavelength using a resonance structure in which a light absorbing material is inserted between a transparent substrate and an upper mirror layer. The colored structure controls metallic luster and texture of a high-chroma color from gloss-semi-gloss-matte texture in various aesthetic ways including introducing a haze surface structure in which light scattering occurs on at least one surface of the transparent substrate.

公开(公告)号：US11489014B2

公开(公告)日：2022-11-01

申请号：US16320932

申请日：2017-11-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Doh Kwon Lee ,  Yoon Hee Jang ,  In Ho Kim ,  Hee Sun Yun ,  Jeung Hyun Jeong

IPC: H01L27/30 ,  H01G9/20 ,  H01L27/28 ,  H01L31/0687 ,  H01L51/42 ,  H01L31/0224

Abstract: A monolithic solar cell includes a first solar cell that is a sequential stack of an electrode, a silicon substrate, and an n-type emitter layer; a recombination layer disposed on the n-type emitter layer; an interfacial layer that is a double layer constituted of PEDOT:PSS and poly-TPD or PEDOT:PSS and PCDTBT, and that is disposed on the recombination layer; and a second solar cell that includes a p-type hole selective layer and a perovskite layer disposed on the p-type hole selective layer, the a p-type hole selective layer contacting and being integrated onto the interfacial layer of the first solar cell in a heat treatment during which the interfacial layer is partially decomposed, wherein the presence of the interfacial layer prevents a reduction in photoelectric conversion efficiency that occurs if the first solar cell and the second solar cell are combined without the presence of the interfacial layer.

公开(公告)号：US11233165B2

公开(公告)日：2022-01-25

申请号：US16366111

申请日：2019-03-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jeung Hyun Jeong ,  In Ho Kim ,  Won Mok Kim ,  Jong Keuk Park ,  Hyeong Geun Yu

IPC: H01L31/0725 ,  H01L31/074 ,  H01L31/0749 ,  H01L31/0224 ,  H01L31/0352 ,  H01L31/18 ,  B23K26/00 ,  B23K26/06 ,  B23K26/0622 ,  B23K26/53 ,  B23K101/40

Abstract: Provided is a multi-junction solar cell in which two or more absorption layers having different bandgaps are stacked on one another. The multi-junction solar cell includes a first cell including a first absorption layer, and a second cell electrically connected in series onto the first cell, wherein the second cell includes a second absorption layer having a higher bandgap compared to the first absorption layer, and a plurality of recesses penetrating through the second absorption layer.

公开(公告)号：US20200343404A1

公开(公告)日：2020-10-29

申请号：US16333252

申请日：2017-11-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Doh Kwon LEE ,  In Ho Kim ,  Won Mok Kim ,  Jong Keuk Park ,  Taek Sung Lee ,  Doo Seok Jeong ,  Hyeon Seung Lee ,  Jeung Hyun Jeong

IPC: H01L31/18 ,  B81C1/00 ,  H01L31/054 ,  H01L31/0236

Abstract: An embodiment includes a method of texturing a semiconductor substrate, a semiconductor substrate manufactured using the method, and a solar cell including the semiconductor substrate, the method including: forming metal nanoparticles on a semiconductor substrate, primarily etching the semiconductor substrate, removing the metal nanoparticles, and secondarily etching the primarily etched semiconductor substrate to form nanostructures.

公开(公告)号：US11764235B2

公开(公告)日：2023-09-19

申请号：US17191092

申请日：2021-03-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyeong Geun Yu ,  Jeung Hyun Jeong ,  Gee Yeong Kim ,  Yoon Hee Jang

IPC: H01L27/142 ,  H01L31/05 ,  H01L31/054 ,  H01L31/0224

CPC classification number: H01L27/142 ,  H01L31/022466 ,  H01L31/0504 ,  H01L31/0547

Abstract: The present invention relates to a colored tandem solar cell module, and more particularly, a high-efficiency thin-film colored tandem solar cell module which does not require separate photocurrent matching, implements a color without a separate color filter, and generates power with high efficiency. According to the present invention, it is possible to provide a colored tandem solar cell module including solar cells, which each include a bottom electrode having an inverse diode structure formed by sequentially stacking a first electrode, a first semiconductor layer, a second semiconductor layer, and a second electrode on a substrate, a light absorption layer formed on the bottom electrode, and a top electrode formed on the light absorption layer, thereby eliminating the need for photocurrent matching, implementing a color without a separate color filter, and improving efficiency.

公开(公告)号：US20200274015A1

公开(公告)日：2020-08-27

申请号：US16366111

申请日：2019-03-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jeung Hyun Jeong ,  In Ho Kim ,  Won Mok Kim ,  Jong Keuk Park ,  Hyeong Geun Yu

IPC: H01L31/0725 ,  H01L31/074 ,  H01L31/0749 ,  H01L31/0224 ,  H01L31/0352 ,  H01L31/18 ,  B23K26/00 ,  B23K26/06 ,  B23K26/0622 ,  B23K26/53

Abstract: Provided is a multi-junction solar cell in which two or more absorption layers having different bandgaps are stacked on one another. The multi-junction solar cell includes a first cell including a first absorption layer, and a second cell electrically connected in series onto the first cell, wherein the second cell includes a second absorption layer having a higher bandgap compared to the first absorption layer, and a plurality of recesses penetrating through the second absorption layer.

公开(公告)号：US20200025988A1

公开(公告)日：2020-01-23

申请号：US16509945

申请日：2019-07-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyeong Seok LEE ,  Doh Kwon Lee ,  Jeung Hyun Jeong ,  Won Mok Kim

IPC: G02B5/28 ,  G02B5/08 ,  G02B5/26 ,  G02B17/00

Abstract: An exemplary embodiment relates to a nano-color coating layer and a method of forming the same, and more particularly, to a color structure representing a back side-reflection color with metallic luster and high chroma when observed in a substrate incident mode by greatly enhancing light absorbance at a specific wavelength using a resonance structure in which a light absorbing material is inserted between a transparent substrate and an upper mirror layer. In addition, the exemplary embodiment provides a color structure which controls metallic luster and texture of a high-chroma color from gloss-semi-gloss-matte texture in various ways by introducing a haze surface structure in which light scattering occurs on at least one surface of the transparent substrate.