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Promote the performance of carbon electrode based perovskite solar cells with Cu2GeS3 hole transporting layer.

Promote the performance of carbon electrode based perovskite solar cells with Cu2GeS3 hole transporting layer.

Authors :
Cheng, Nian
Li, Weiwei
Pan, Han
Zheng, Dingshan
Yang, Wen-Xing
Source :
Chemical Engineering Journal. Jun2024, Vol. 489, pN.PAG-N.PAG. 1p.
Publication Year :
2024

Abstract

• Inorganic Cu 2 GeS 3 nanocrystals are utilized as hole transporting layer in C-PSCs. • Cu 2 GeS 3 could effectively extract photo-generated holes and suppress the charge carrier recombination. • C-PSC with a champion PCE of 19.0% is demonstrate. Hole transporting layer (HTL) is indispensable for promoting the power conversion efficiency (PCE) and device stability of perovskite solar cells (PSCs), especially for the carbon electrode based PSCs (C-PSCs). Compared with the large amount of organic HTLs, which are available for metal electrode based PSCs, the inorganic HTLs for C-PSCs are relatively scarce. In this study, we successfully synthesized Cu 2 GeS 3 nanocrystals with spherical shape and well dispersibility, and further explore their potential to function as inorganic HTL for C-PSCs. The Cu 2 GeS 3 HTL can greatly improve the PCE of C-PSCs to 19.0 %, which is enhanced by 36.3 % compared with that (PCE = 13.9 %) of HTL-free C-PSCs. The reported PCE in our study is among the highest PCEs for C-PSCs with inorganic HTL, therefore, our study indicates that Cu 2 GeS 3 nanocrystals are excellent inorganic HTL for C-PSCs. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
13858947
Volume :
489
Database :
Academic Search Index
Journal :
Chemical Engineering Journal
Publication Type :
Academic Journal
Accession number :
177199179
Full Text :
https://doi.org/10.1016/j.cej.2024.151463