Title:
PEROVSKITE PHOTOELECTRIC ELEMENT, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/107645
Kind Code:
A1
Abstract:
Disclosed are a perovskite photoelectric element, and a method for producing same. A perovskite photoelectric element according to an embodiment of the present invention comprises: a first electrode; a hole transport layer; a perovskite layer formed of a first perovskite compound; an electron transport layer; a second electrode; and a graded-wall formed on at least one surface of the perovskite layer and formed of a second perovskite compound, wherein the first perovskite compound and the second perovskite compound are represented by chemical formula 1, and the band gap energy of the graded-wall is greater than the band gap energy of the perovskite layer, and thus constrains excitons of the perovskite layer. [Chemical formula 1] AaMbXc (in chemical formula 1, A is a monovalent cation, M is a divalent or trivalent metal cation, X is a monovalent anion, a+2b=c when M is a divalent metal cation, a+3b=c when M is a trivalent metal cation, and a, b, and c are natural numbers.) [Chemical formula 1] AaMbXc (in chemical formula 1, A is a monovalent cation, M is a divalent or trivalent metal cation, X is a monovalent anion, a + 2b = c when M is a divalent metal cation, a + 3b = c when M is a trivalent metal cation, and a, b, and c are natural numbers.)
Inventors:
IM SANG HYUK (KR)
HEO JIN HYUCK (KR)
HEO JIN HYUCK (KR)
Application Number:
PCT/KR2020/016981
Publication Date:
June 03, 2021
Filing Date:
November 26, 2020
Export Citation:
Assignee:
UNIV KOREA RES & BUS FOUND (KR)
International Classes:
H01L51/42; H01L31/032
Foreign References:
| KR101998021B1 | 2019-07-08 | |||
| KR20190052981A | 2019-05-17 | |||
| KR20110023007A | 2011-03-08 | |||
| KR20140066963A | 2014-06-03 | |||
| KR20170002967A | 2017-01-09 |
Attorney, Agent or Firm:
KIM, Youn Gwon (KR)
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