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Lead‐Free Inverted Planar Formamidinium Tin Triiodide Perovskite Solar Cells Achieving Power Conversion Efficiencies up to 6.22%

Authors :
Philip Schulz
Wei-Qiang Liao
Ren-Gen Xiong
Weiwei Meng
Kai Zhu
Alexander J. Cimaroli
Yue Yu
Changlei Wang
Corey R. Grice
Dewei Zhao
Yanfa Yan
Source :
Advanced Materials. 28:9333-9340
Publication Year :
2016
Publisher :
Wiley, 2016.

Abstract

Efficient lead (Pb)-free inverted planar formamidinium tin triiodide (FASnI3 ) perovskite solar cells (PVSCs) are demonstrated. Our FASnI3 PVSCs achieved average power conversion efficiencies (PCEs) of 5.41% ± 0.46% and a maximum PCE of 6.22% under forward voltage scan. The PVSCs exhibit small photocurrent-voltage hysteresis and high reproducibility. The champion cell shows a steady-state efficiency of ≈6.00% for over 100 s.

Details

ISSN :
15214095 and 09359648
Volume :
28
Database :
OpenAIRE
Journal :
Advanced Materials
Accession number :
edsair.doi.dedup.....756873b62a05ac9477b1576e5b9af9e0