Rain on Methylammonium Lead Iodide Based Perovskites: Possible Environmental Effects of Perovskite Solar Cells
Rain on Methylammonium Lead Iodide Based Perovskites: Possible Environmental Effects of Perovskite Solar Cells
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DOI：
10.1021/acs.jpclett.5b00504
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发表时间：
2015-05-07
影响因子：
5.7
通讯作者：
Cahen, David
中科院分区：
文献类型：
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作者：
Hailegnaw, Bekele;Kirmayer, Saar;Cahen, David
杂化有机无机卤化铅钙钛矿（HOIP）太阳能电池的巨大前景受到其铅含量和对水的敏感性的挑战。在这里，通过将甲基碘化铅钙钛矿薄膜暴露在不同pH值的水中，模拟薄膜暴露在雨中，研究了雨对甲基碘化铅钙钛矿薄膜的影响。铅的损失量用重量法和电感耦合等离子体质谱法测定。利用我们的结果，评估了在灾难性模块故障的情况下铅对环境的损失程度。虽然非常依赖于模块的选址，但即使是完全摧毁一个基于hoip的大型太阳能发电厂，虽然显然是非常不可取的，但估计对环境来说远不是灾难性的。
The great promise of hybrid organic inorganic lead halide perovskite (HOIP)-based solar cells is being challenged by its Pb content and its sensitivity to water. Here, the impact of rain on methylammonium lead iodide perovskite films was investigated by exposing such films to water of varying pH values, simulating exposure of the films to rain. The amount of Pb loss was determined using both gravimetric and inductively coupled plasma mass spectrometry measurements. Using our results, the extent of Pb loss to the environment, in the case of catastrophic module failure, was evaluated. Although very dependent on module siting, even total destruction of a large solar electrical power generating plant, based on HOIPs, while obviously highly undesirable, is estimated to be far from catastrophic for the environment.