Investigation Of Degradation of Perovskite Solar Cell Using Analytical Drift Diffusion Model

SINGH Deep; KHADKA Dhruba Bahadur; YANAGIDA Masatoshi; Sudhanshu Mallick; SHIRAI Yasuhiro

Poster Investigation Of Degradation of Perovskite Solar Cell Using Analytical Drift Diffusion Model

SINGH Deep (Research Center for Energy and Environmental Materials (GREEN)/Battery and Cell Materials Field/Photovoltaic Materials Group, National Institute for Materials Science) ; KHADKA Dhruba Bahadur (Research Center for Energy and Environmental Materials (GREEN)/Battery and Cell Materials Field/Photovoltaic Materials Group, National Institute for Materials Science) ; YANAGIDA Masatoshi (Research Center for Energy and Environmental Materials (GREEN)/Battery and Cell Materials Field/Photovoltaic Materials Group, National Institute for Materials Science) ; Sudhanshu Mallick (IIT Bombay) ; SHIRAI Yasuhiro (Research Center for Energy and Environmental Materials (GREEN)/Battery and Cell Materials Field/Photovoltaic Materials Group, National Institute for Materials Science)

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SINGH Deep, KHADKA Dhruba Bahadur, YANAGIDA Masatoshi, Sudhanshu Mallick, SHIRAI Yasuhiro. Investigation Of Degradation of Perovskite Solar Cell Using Analytical Drift Diffusion Model. https://doi.org/10.48505/nims.5564

(BibTeX)

Alternative title: 解析的ドリフト拡散モデルを用いたペロブスカイト太陽電池の劣化の調査

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(abstract)

The Power conversion efficiency (PCE) of Perovskite solar cells (PSCs) declines during operation with time. The cause of deterioration of perovskite solar cells is the instability of the perovskite crystal is induced by external factors, including humid air, heat, light, and electric field1,2. Perovskite solar cell research has advanced with analytical models describing cell operation and non-uniform generation3. Impedance spectroscopy of perovskite solar cells is used to study the charge transport mechanism, electrical properties, and degradation of PSCs4.
To understand the degradation a simulation based on analytical and numerical model is performed. In analytical model-based simulation the degradation is considered as the function of surface recombination velocity. While in numerical simulation based on drift diffusion model the degradation is considered as the function of ion density.
It is found that the surface recombination leads to charge carrier loss, accelerating cell degradation over time and with temperature. Impedance spectra show that higher-frequency components play a larger role in degraded solar cells. Low ion density minimizes low-frequency contributions in impedance spectra. Impedance changes reveal how ion density impacts charge transport and recombination in PSCs.

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