Employing Lead Thiocyanate Additive to Reduce the Hysteresis and Boost the Fill Factor of Planar Perovskite Solar Cells

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• 作者：Weijun Ke ; Chuanxiao Xiao ; Changlei Wang ; Bayrammurad Saparov ; Hsin-Sheng Duan ; Dewei Zhao ; Zewen Xiao ; Philip Schulz ; Steven P. Harvey ; Weiqiang Liao ; Weiwei Meng ; Yue Yu ; Alexander J. Cimaroli ; Chun-Sheng Jiang ; Kai Zhu ; Mowafak Al-Jassim ; Guojia Fang ; David B. Mitzi and Yanfa Yan
• 刊名：Advanced Materials
• 出版年：2016
• 出版时间：July 13, 2016
• 年：2016
• 卷：28
• 期：26
• 页码：5214-5221
• 全文大小：2038K
• ISSN：1521-4095

文摘

Lead thiocyanate in the perovskite precursor can increase the grain size of a perovskite thin film and reduce the conductivity of the grain boundaries, leading to perovskite solar cells with reduced hysteresis and enhanced fill factor. A planar perovskite solar cell with grain boundary and interface passivation achieves a steady-state efficiency of 18.42%.