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Dual-Source Precursor Approach for Highly Efficient Inverted Planar Heterojunction Perovskite Solar Cells

Luo, Deying, Zhao, Lichen, Wu, Jiang, Hu, Qin, Zhang, Yifei, Xu, Zhaojian, Liu, Yi, Liu, Tanghao, Chen, Ke, Yang, Wenqiang , Zhang, Wei, Zhu, Rui and Gong, Qihuang (2017) Dual-Source Precursor Approach for Highly Efficient Inverted Planar Heterojunction Perovskite Solar Cells Advanced Materials, 29 (19), 1604758.

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The highest efficiencies reported for perovskite solar cells so far have been obtained mainly with methylammonium and formamidinium mixed cations. Currently, high-quality mixed-cation perovskite thin films are normally made by use of antisolvent protocols. However, the widely used “antisolvent”-assisted fabrication route suffers from challenges such as poor device reproducibility, toxic and hazardous organic solvent, and incompatibility with scalable fabrication process. Here, a simple dual-source precursor approach is developed to fabricate high-quality and mirror-like mixed-cation perovskite thin films without involving additional antisolvent process. By integrating the perovskite films into the planar heterojunction solar cells, a power conversion efficiency of 20.15% is achieved with negligible current density–voltage hysteresis. A stabilized power output approaching 20% is obtained at the maximum power point. These results shed light on fabricating highly efficient perovskite solar cells via a simple process, and pave the way for solar cell fabrication via scalable methods in the near future.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Luo, Deying
Zhao, Lichen
Wu, Jiang
Hu, Qin
Zhang, Yifei
Xu, Zhaojian
Liu, Yi
Liu, Tanghao
Chen, Ke
Yang, Wenqiang
Zhu, Rui
Gong, Qihuang
Date : 15 March 2017
DOI : 10.1002/adma.201604758
Copyright Disclaimer : © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Uncontrolled Keywords : Dual-source precursor approaches; Inverted planar heterojunctions; Perovskite solar cells; Stable mixed-cation perovskites
Depositing User : Clive Harris
Date Deposited : 05 Jun 2017 11:05
Last Modified : 16 Jan 2019 18:53

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