Analysis of Color Alteration as a Novel Degradation Assessment Method for Perovskite Solar Cells




Nizamov, Rustem; Poskela, Aapo; Hadadian, Mahboubeh; Esmaeilzadeh, Maryam; Nyberg, Mikael; Miettunen, Kati

N/A

European Photovoltaic Solar Energy Conference and Exhibition

2024

Proceedings of the European Photovoltaic Solar Energy Conference and Exhibition

Proceedings of the 41st European Photovoltaic Solar Energy Conference and Exhibition in Vienna, Austria

41

001

006

3-936338-90-6

2196-100X

DOIhttps://doi.org/10.4229/EUPVSEC2024/2BV.1.29

https://doi.org/10.4229/EUPVSEC2024/2BV.1.29



In this study, we present a non-invasive, in situ method of assessing the degradation of perovskite solar cells (PSCs) by analyzing color alterations. We utilized a custom-built photographing chamber with controlled light conditions paired with a high-resolution digital camera. This method offers a cost-effective solution for assessing degradation and could simplify the monitoring process across a range of PSCs. Unencapsulated, hole transport layer-free carbon-based PSCs (C-PSCs) and metal-based PSCs (Au-PSCs) were aged following an ISOS protocol (D-1, dark storage) for 9200 hours at an average temperature of 22 ± 1°C and humidity of 40 ± 20%. Periodic digital photographs and short-circuit current density (JSC) measurements were taken to map electrical performance against color change. A statistically significant correlation (r = 0.8 for C-PSCs, r = -0.7 for Au-PSCs) was found between color alterations and JSC. These findings suggest that color changes can serve as reliable indicators of PSC degradation.



Last updated on 2025-27-01 at 19:46