Effect of illumination and applied potential on the electrochemical impedance spectra in triple cation (FA/MA/Cs) 3D and 2D/3D perovskite solar cells

Sumayya M. Abdulrahim,Zubair Ahmad,Muhammad Qasim Mehmood,Sanghyun Paek,J. Bhadra,Noora J. Al-Thani,Mohammad Khaja Nazeeruddin,Abdelhak Belaidi,Mahmood Amani

Journal of Electroanalytical Chemistry（2021）

引用 6|浏览4

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摘要

•We used electrochemical impedance spectroscopy technique to analyze the charge dynamics in 3D and 2D/3D perovskite solar cells.•The charge transfer resistance (Rct) of 3D and 2D/3D sample showed opposite trend at 0 V in illumination.•3D sample started showing resistive behavior after 5000 h of aging, indicating degradation.•A negative capacitance feature appeared in dark conditions at high applied potentials only.

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关键词

3D & 2D/3D perovskite solar cells,Electrochemical impedance spectroscopy,Degradation,Aging

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