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The Dawn of Lead-Free Perovskite Solar Cell: Highly Stable Double Perovskite Cs2AgBiBr6 Film.

ABSTRACT: Recently, lead-free double perovskites have emerged as a promising environmentally friendly photovoltaic material for their intrinsic thermodynamic stability, appropriate bandgaps, small carrier effective masses, and low exciton binding energies. However, currently no solar cell based on these double perovskites has been reported, due to the challenge in film processing. Herein, a first lead-free double perovskite planar heterojunction solar cell with a high quality Cs2AgBiBr6 film, fabricated by low-pressure assisted solution processing under ambient conditions, is reported. The device presents a best power conversion efficiency of 1.44%. The preliminary efficiency and the high stability under ambient condition without encapsulation, together with the high film quality with simple processing, demonstrate promise for lead-free perovskite solar cells.

SUBMITTER: Wu C 

PROVIDER: S-EPMC5867041 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature

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The Dawn of Lead-Free Perovskite Solar Cell: Highly Stable Double Perovskite Cs<sub>2</sub>AgBiBr<sub>6</sub> Film.

Wu Cuncun C   Zhang Qiaohui Q   Liu Yang Y   Luo Wei W   Guo Xuan X   Huang Ziru Z   Ting Hungkit H   Sun Weihai W   Zhong Xinrui X   Wei Shiyuan S   Wang Shufeng S   Chen Zhijian Z   Xiao Lixin L  

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 20171218 3

Recently, lead-free double perovskites have emerged as a promising environmentally friendly photovoltaic material for their intrinsic thermodynamic stability, appropriate bandgaps, small carrier effective masses, and low exciton binding energies. However, currently no solar cell based on these double perovskites has been reported, due to the challenge in film processing. Herein, a first lead-free double perovskite planar heterojunction solar cell with a high quality Cs<sub>2</sub>AgBiBr<sub>6</s  ...[more]

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