In:
Angewandte Chemie, Wiley, Vol. 133, No. 19 ( 2021-05-03), p. 10702-10707
Abstract:
The precise regulation of interfacial charge distribution highly determines the power conversion efficiency of perovskite solar cells (PSCs). Herein, inorganic (NiCo) 1− y Fe y O x nanoparticle decorated graphene oxide (GO) is successfully demonstrated as a hole booster for all‐inorganic CsPbIBr 2 PSC free of precious metal electrode. Arising from the spontaneous electron transfer induced p ‐type doping of GO from edged oxygen‐containing functional groups to (NiCo) 1− y Fe y O x , the best all‐inorganic CsPbIBr 2 PSC achieves an efficiency of 10.95 % under one standard sun owing to the eliminated paradox between charge extraction and charge localization in GO surface. Furthermore, the champion device exhibits an excellent long‐term stability at 10 % relative humidity without encapsulation over 70 days because of the suppressed ions migration.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v133.19
DOI:
10.1002/ange.202016703
Language:
English
Publisher:
Wiley
Publication Date:
2021
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505872-7
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1479266-7
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