论文标题
对“在金属卤化物钙钛矿太阳能电池中解决陷阱状态的空间和能量分布的评论”。
Response to comment on "Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells"
论文作者
论文摘要
Ravishankar等。声称驱动级电容分析（DLCP）方法无法沿着给定厚度的钙钛矿的深度方向解析陷阱密度，并解释了测得的电荷是几何电容和扩散电容的结果。我们指出，DLCP方法中的陷阱密度来自不同频率下的差分电容，因此减去了由扩散和几何电容引起的背景电荷。即使对于DLCP的非差异掺杂分析，扩散电容的贡献也被证明可以忽略不计，并且排除了几何电容的贡献。其他实验结果进一步支持了测得的陷阱密度代表钙钛矿太阳能电池中的实际陷阱分布。
Ravishankar et al. claimed the drive-level capacitance profiling (DLCP) method cannot resolve trap density along depth direction in perovskites with given thickness, and explained the measured charges to be a consequence of geometrical capacitance and diffusion capacitance. We point out that the trap densities in DLCP method are derived from the differential capacitance at different frequencies, and thus the background charges caused by diffusion and geometry capacitance has been subtracted. Even for the non-differential doping analysis by DLCP, the contribution from diffusion capacitance is shown to be negligible and contribution from geometry capacitance is excluded. Additional experiment results further support the measured trap density represents the actual trap distribution in perovskite solar cells.
