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Research Article

Low-temperature processed solar cells with formamidinium tin halide perovskite/fullerene heterojunctions

Meng Zhang1Miaoqiang Lyu1Jung-Ho Yun1Mahir Noori2Xiaojing Zhou2Nathan A. Cooling2Qiong Wang1Hua Yu2Paul C. Dastoor1( )Lianzhou Wang1( )
Nanomaterials CentreSchool of Chemical Engineering and AIBNThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
Centre for Organic ElectronicsUniversity of NewcastleCallaghanNSW2308Australia
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Abstract

A new type of lead-free, formamidinium (FA)-based halide perovskites, FASnI2Br, are investigated as light-harvesting materials for low-temperature processed p–i–n heterojunction solar cells with different configurations. The FASnI2Br perovskite, with a band-gap of 1.68 eV, exhibits optimal photovoltaic performance after low-temperature annealing at 75 ℃. By using C60 as electron-transport layer, the device yields a hysteresis-less power conversion efficiency of 1.72%. The possible use of an inorganic MoOx film as a new type of independent hole-transport layer for the present tin-based perovskite solar cells is also demonstrated.

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nr-9-6-1570_ESM.pdf (1 MB)
Nano Research
Pages 1570-1577
Cite this article:
Zhang M, Lyu M, Yun J-H, et al. Low-temperature processed solar cells with formamidinium tin halide perovskite/fullerene heterojunctions. Nano Research, 2016, 9(6): 1570-1577. https://doi.org/10.1007/s12274-016-1051-8

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Received: 10 November 2015
Revised: 06 February 2016
Accepted: 17 February 2016
Published: 29 March 2016
© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2016
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