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Homogeneous crystallization and buried interface passivation for perovskite tandem solar modules.

Authors :
Gao H
Xiao K
Lin R
Zhao S
Wang W
Dayneko S
Duan C
Ji C
Sun H
Bui AD
Liu C
Wen J
Kong W
Luo H
Zheng X
Liu Z
Nguyen H
Xie J
Li L
Saidaminov MI
Tan H
Source :
Science (New York, N.Y.) [Science] 2024 Feb 23; Vol. 383 (6685), pp. 855-859. Date of Electronic Publication: 2024 Feb 22.
Publication Year :
2024

Abstract

Scalable fabrication of all-perovskite tandem solar cells is challenging because the narrow-bandgap subcells made of mixed lead-tin (Pb-Sn) perovskite films suffer from nonuniform crystallization and inferior buried perovskite interfaces. We used a dopant from Good's list of biochemical buffers, aminoacetamide hydrochloride, to homogenize perovskite crystallization and used it to extend the processing window for blade-coating Pb-Sn perovskite films and to selectively passivate defects at the buried perovskite interface. The resulting all-perovskite tandem solar module exhibited a certified power conversion efficiency of 24.5% with an aperture area of 20.25 square centimeters.

Details

Language :
English
ISSN :
1095-9203
Volume :
383
Issue :
6685
Database :
MEDLINE
Journal :
Science (New York, N.Y.)
Publication Type :
Academic Journal
Accession number :
38386724
Full Text :
https://doi.org/10.1126/science.adj6088