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：US10950742B2

公开(公告)日：2021-03-16

申请号：US16343807

申请日：2017-11-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Doh Kwon Lee ,  In Ho Kim ,  Hee Sun Yun ,  Jang Mi Lee

IPC: C25D3/56 ,  C25D5/50 ,  C25D5/48 ,  C25D5/02 ,  C25D5/00 ,  C25D5/10 ,  H01L31/0445 ,  H01L31/0392 ,  H01L31/18

Abstract: A method for preparing a film of a CIS semiconductor compound overcoated by a color layer includes preparing an electrolyte solution by mixing precursors of film constituents including Cu, In, and Se with a solvent; configuring an electrodeposition circuit by connecting an electrochemical cell comprising the electrolyte solution, a working electrode, and a counter electrode to a voltage or current supply device; disposing a photomask having the predetermined pattern on the working electrode; producing the film through the photomask on a surface of the working electrode by applying a reduction voltage or current; disposing a light source to emit light toward the photomask; and photoelectrically depositing the film on the surface of the working electrode at least in the predetermined pattern while illuminating light through the photomask; and forming a color layer of CuSe at least in the predetermined pattern on the film employed as a working electrode using photo-electrodeposition.

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.