The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
Oct. 29, 2021
Korea Institute of Energy Research, Daejeon, KR;
Sung-Jun Hong, Daejeon, KR;
Chi-Hwan Han, Daejeon, KR;
Se-Jin Ahn, Daejeon, KR;
Inyoung Jeong, Cheongju-si, KR;
Asmat Ullah, Daejeon, KR;
Korea Institute of Energy Research, Daejeon, KR;
Abstract
The present invention discloses a conductive substrate, a perovskite substrate using the conductive substrate, and a solar cell using the perovskite substrate. The conductive substrate, the perovskite substrate, and the solar cell of the present invention include a conductive base and a conductive compound stacked on the conductive base. The conductive compound is represented by Formula 1, 2 or 3. The conductive compound is capable of multi-electron redox reactions, possesses p-type organic molecular properties, and has an oxidation potential or highest occupied molecular orbital (HOMO) matching the valence band of perovskite so that holes generated in an absorber layer are selectively separated for the application of the perovskite material, achieving enhanced photoelectric conversion efficiency of the solar cell and a significantly reduced difference between the forward and reverse conversion efficiencies (hysteresis index) of the solar cell.