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

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• 作者：Meng Zhang ; Miaoqiang Lyu ; Jung-Ho Yun ; Mahir Noori ; Xiaojing Zhou…
• 刊名：Nano Research
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：9
• 期：6
• 页码：1570-1577
• 全文大小：1,679 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chinese Library of Science
  Chemistry
  Nanotechnology
  
• 出版者：Tsinghua University Press, co-published with Springer-Verlag GmbH
• ISSN：1998-0000
• 卷排序：9

文摘

A new type of lead-free, formamidinium (FA)-based halide perovskites, FASnI<sub>2sub>Br, are investigated as light-harvesting materials for low-temperature processed p–i–n heterojunction solar cells with different configurations. The FASnI<sub>2sub>Br perovskite, with a band-gap of 1.68 eV, exhibits optimal photovoltaic performance after low-temperature annealing at 75 °C. By using C<sub>60sub> as electron-transport layer, the device yields a hysteresis-less power conversion efficiency of 1.72%. The possible use of an inorganic MoO<sub>xsub> film as a new type of independent hole-transport layer for the present tin-based perovskite solar cells is also demonstrated.