Efficient planar heterojunction perovskite solar cells employing graphene oxide as hole conductor

Efficient planar heterojunction perovskite solar cells employing graphene oxide as hole conductor

Graphene oxide (GO) is employed as a hole conductor in inverted planar heterojunction perovskite solar cells, and the devices with CH₃NH₃PbI₃-xClx as absorber achieve an efficiency of over 12%. The perovskite film grown on GO exhibits enhanced crystallization, high surface coverage ratio as well as...

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Veröffentlicht in:Nanoscale 2014-09, Vol.6 (18), p.10505-10510
Hauptverfasser: Wu, Zhongwei, Bai, Sai, Xiang, Jian, Yuan, Zhongcheng, Yang, Yingguo, Cui, Wei, Gao, Xingyu, Liu, Zhuang, Jin, Yizheng, Sun, Baoquan
Format: Artikel
Sprache:eng
Schlagworte:
Conductors (devices)
Crystallization
Graphene
Heterojunctions
Oxides
Perovskites
Photovoltaic cells
Solar cells
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Zusammenfassung:Graphene oxide (GO) is employed as a hole conductor in inverted planar heterojunction perovskite solar cells, and the devices with CH₃NH₃PbI₃-xClx as absorber achieve an efficiency of over 12%. The perovskite film grown on GO exhibits enhanced crystallization, high surface coverage ratio as well as preferred in-plane orientation of the (110) plane. Efficient hole extraction from the perovskite to GO is demonstrated.
ISSN:2040-3364
2040-3372
DOI:10.1039/c4nr03181d