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Interconnected SnO2 Nanocrystals Electron Transport Layer for Highly Efficient Flexible Perovskite Solar Cells
Solar RRL ( IF 6.0 ) Pub Date : 2019-07-31 , DOI: 10.1002/solr.201900229 Qiang Sun 1 , Hao Li 1 , Xiu Gong 1 , Huaxia Ban 1 , Yan Shen 1 , Mingkui Wang 1
Solar RRL ( IF 6.0 ) Pub Date : 2019-07-31 , DOI: 10.1002/solr.201900229 Qiang Sun 1 , Hao Li 1 , Xiu Gong 1 , Huaxia Ban 1 , Yan Shen 1 , Mingkui Wang 1
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This study reports on interconnected SnO2 electron transport layers (composed of presynthesized SnO2 nanocrystals interconnected by amorphous phase SnOx) processed at low temperature (120 °C) for highly efficient flexible perovskite solar cells. Herein, the amorphous phase SnOx serves as an effective binder to connect the SnO2 nanocrystals to obtain ultra‐smooth electron transport layers. Further characterization of the charge carrier kinetics at the perovskite/electron transport layer interface confirms that the interconnected SnO2 nanocrystals layer facilitates electron extraction and retards nonradiative charge carrier recombination. Consequently, a power conversion efficiency of 16.29% is achieved for flexible perovskite solar cells using the interconnected SnO2 electron transport layer on indium tin oxide/polyethylene terephthalate substrates.
中文翻译：
互连的SnO2纳米晶体电子传输层，用于高效柔性钙钛矿太阳能电池
这项研究报告了互连的SnO 2电子传输层（由预先合成的SnO 2纳米晶体与非晶相SnO x互连组成）在低温（120°C）下加工而成，用于高效柔性钙钛矿太阳能电池。在此，非晶相SnO x用作连接SnO 2纳米晶体以获得超光滑电子传输层的有效粘合剂。在钙钛矿/电子传输层界面处的载流子动力学的进一步表征证实了互连的SnO 2纳米晶体层促进电子提取并阻止非辐射载流子复合。因此，使用在铟锡氧化物/聚对苯二甲酸乙二醇酯衬底上的互连的SnO 2电子传输层的柔性钙钛矿太阳能电池可实现16.29％的功率转换效率。
更新日期：2019-07-31
中文翻译：
互连的SnO2纳米晶体电子传输层，用于高效柔性钙钛矿太阳能电池
这项研究报告了互连的SnO 2电子传输层（由预先合成的SnO 2纳米晶体与非晶相SnO x互连组成）在低温（120°C）下加工而成，用于高效柔性钙钛矿太阳能电池。在此，非晶相SnO x用作连接SnO 2纳米晶体以获得超光滑电子传输层的有效粘合剂。在钙钛矿/电子传输层界面处的载流子动力学的进一步表征证实了互连的SnO 2纳米晶体层促进电子提取并阻止非辐射载流子复合。因此，使用在铟锡氧化物/聚对苯二甲酸乙二醇酯衬底上的互连的SnO 2电子传输层的柔性钙钛矿太阳能电池可实现16.29％的功率转换效率。
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