Ni et al. (Research Articles, 20 March 2020, p. 1352) report bulk trap densities of 10¹¹ cm^–3 and an increase in interfacial trap densities by one to four orders of magnitude from drive-level capacitance profiling of lead halide perovskites. From electrostatic arguments, we show that the results are not trap densities but are a consequence of the geometrical capacitance and charge injection into the perovskite layer.

中文翻译：

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关于“解析金属卤化物钙钛矿太阳能电池中陷阱态的空间和能量分布”的评论

倪等。（研究文章，2020年3月20日，第1352页）报告说，从卤化物钙钛矿的驱动级电容分布图来看，体阱陷阱密度为10 ¹¹ cm ^-3，界面阱密度增加了1-4个数量级。从静电学说，我们表明结果不是陷阱密度，而是几何电容和电荷注入钙钛矿层的结果。