High performance hole transport material free perovskite solar cells from a low pure PbI2 source using a facile solid-gas reaction process
High performance hole transport material free perovskite solar cells from a low pure PbI2 source using a facile solid-gas reaction process
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采用简单的固气反应工艺，采用低纯 PbI2 源制备高性能无空穴传输材料的钙钛矿太阳能电池
DOI：
10.1016/j.orgel.2017.11.044
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发表时间：
2018
影响因子：
3.2
通讯作者：
Fang Liang
中科院分区：
文献类型：
--
作者：
Cheng Nian;Li Weiwei;Xiao Zhenyu;Sun Shujie;Zhao Zhiqiang;Zi Wei;Fang Liang
从低纯度铅源制备CH_3NH_3PbI_3钙钛矿太阳能电池是降低钙钛矿太阳能电池制造成本的重要途径。为了避免低纯度PbI 2源在常用溶剂中溶解度低的问题，先将PbI 2与HI溶液反应生成高溶解度的HPbI 3化合物，然后将HPbI 3膜与CH 3 NH 2蒸气进行固-气反应，得到CH 3 NH3 PbI 3钙钛矿薄膜。通过优化HPbI 3前驱体溶液的浓度，获得了高度均匀的钙钛矿薄膜。通过这种简单的方法制备的无空穴传输材料的钙钛矿太阳能电池具有12.90%的平均功率转换效率和13.21%的最大功率转换效率，这与由高纯PbI 2源制备的钙钛矿太阳能电池的性能相当。
Preparing CH3NH3PbI3perovskite solar cells from a low pure lead source is highly desirable for cutting down the fabrication cost of perovskite solar cells. To avoid the low solubility problem of low pure PbI2source in the commonly used solvent, PbI2first reacts with HI solution to produce highly soluble HPbI3compound, then CH3NH3PbI3perovskite film is obtained through a solid-gas reaction between HPbI3film and CH3NH2vapor. By optimizing the concentration of HPbI3precursor solution, highly uniform perovskite films are obtained. Hole transport material free perovskite solar cells fabricated via this facile method exhibit an average power conversion efficiency of 12.90% and a maximum power conversion efficiency of 13.21%, which are comparable to the performances of perovskite solar cells prepared from high pure PbI2sources.