Nonhazardous Solvent Systems for Processing Perovskite Photovoltaics
Nonhazardous Solvent Systems for Processing Perovskite Photovoltaics
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DOI：
10.1002/aenm.201600386
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发表时间：
2016-07-20
影响因子：
27.8
通讯作者：
Poortmans, Jef
中科院分区：
文献类型：
--
作者：
Gardner, Kira L.;Tait, Jeffrey G.;Poortmans, Jef
用无害溶剂替代有毒溶剂是薄膜钙钛矿光致发光材料工业规模商业化的关键挑战之一。在这里，提出了用于无针孔钙钛矿层的单步沉积的无害溶剂/醇/酸系统，其具有Pb（CH 3CO 2）（2）、3 H（2）O、PbCl 2和CH 3 NH3 I的组合卤化铅前体。实现了与标准危险油墨相当的性能：展示了具有15.1%功率转换效率的设备，并在最大功率点保持13.5%跟踪5分钟。用最高性能的设备油墨制造的刀片涂覆的4 cm 2太阳能模块的功率转换效率达到11.9%。
Replacing toxic solvents with nonhazardous solvents is one of the key challenges for industrial scale commercialization of thin film perovskite photovoltaics. Here, nonhazardous solvent/alcohol/acid systems are presented for the single-step deposition of pinhole-free perovskite layers with combined lead halide precursors of Pb(CH3CO2)(2), 3H(2)O, PbCl2, and CH3NH3I. Comparable performance to standard hazardous inks is achieved: devices with 15.1% power conversion efficiency are demonstrated and maintain 13.5% tracked for 5 min at maximum power point. Blade coated 4 cm 2 solar modules fabricated with highest performing device ink attain 11.9% in power conversion efficiency.