Understanding degradation mechanisms of perovskite solar cells due to electrochemical metallization effect

Wang HQ, Wang S, Chen L, Yin Z, Mei S, Zhong Y, Yao Y, Li N, Wang J, Song W (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Solar Energy Materials and Solar Cells Elsevier

Book Volume: 230

Article Number: 111278

DOI: 10.1016/j.solmat.2021.111278

Abstract

Operational stability is becoming one of the most crucial parameters for commercialization of perovskite solar cells (PSCs). However the stability issue of PSCs is currently far from being resolved due to complicated and still unclear degradations. In this work, we systematically demonstrate the degradation of metal cathode PSCs under operation conditions. Discussions about influence of intrinsic factors i.e. light illumination, voltage and current, on device degradation are conducted. It is concluded that metal cathode stripping/plating behavior (electrochemical metallization effect) due to current together with perovskite degradation could dominate the device degradation. It is deduced that electrochemical cell in the PSC system could be formed by metal/counter electrodes and perovskite electrolyte. Both cells accelerate degradation of metal electrode and perovskite in working conditions, hence device degradation. These insights into the degradation and mechanisms can help further understand the working principle and solve the instability problem of perovskite-based optoelectronic devices.

Authors with CRIS profile

Ning Li Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

Ningbo Institute of Industrial Technology / Ningbo Institute of Materials Technology & Engineering (NIMTE) / 中国科学院宁波材料技术与工程研究所 CN China (CN) Changzhou University (CZU) / 常州大学 CN China (CN)

How to cite

APA:

Wang, H.Q., Wang, S., Chen, L., Yin, Z., Mei, S., Zhong, Y.,... Song, W. (2021). Understanding degradation mechanisms of perovskite solar cells due to electrochemical metallization effect. Solar Energy Materials and Solar Cells, 230. https://dx.doi.org/10.1016/j.solmat.2021.111278

MLA:

Wang, Hai Qiao, et al. "Understanding degradation mechanisms of perovskite solar cells due to electrochemical metallization effect." Solar Energy Materials and Solar Cells 230 (2021).

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