Lead-Free Inverted Planar Formamidinium Tin Triiodide Perovskite Solar Cells Achieving Power Conversion Efficiencies up to 6.22%

详细信息    查看全文

• 作者：Weiqiang Liao ; Dewei Zhao ; Yue Yu ; Corey R. Grice ; Changlei Wang ; Alexander J. Cimaroli ; Philip Schulz ; Weiwei Meng ; Kai Zhu ; Ren-Gen Xiong and Yanfa Yan
• 刊名：Advanced Materials
• 出版年：2016
• 出版时间：November 9, 2016
• 年：2016
• 卷：28
• 期：42
• 页码：9333-9340
• 全文大小：1394K
• ISSN：1521-4095

文摘

Efficient lead (Pb)-free inverted planar formamidinium tin triiodide (FASnI₃) perovskite solar cells (PVSCs) are demonstrated. Our FASnI₃ PVSCs achieved average power conversion efficiencies (PCEs) of 5.41% ± 0.46% and a maximum PCE of 6.22% under forward voltage scan. The PVSCs exhibit small photocurrent–voltage hysteresis and high reproducibility. The champion cell shows a steady-state efficiency of ≈6.00% for over 100 s.