Presentation Information

[9p-P06-9]Deterioration mechanism analysis of double perovskite solar cell using D149

〇(M2)Yanqiu YANG¹, Yizhou Chen¹, Yukihiro Shimoi^1,2, Kazuhiro Marumoto^1,2,3 (1.Dep. Mater. Sci., Univ. Tsukuba, 2.OIQSST, Univ. Tsukuba, 3.TREMS, Univ. Tsukuba)

Keywords:

double perovskite solar cell,Dye D149,electron spin resonance

Cs₂AgBiBr₆ double perovskite solar cells are considered promising candidates for next-generation photovoltaics due to their low environmental impact and high stability. However, their light-harvesting capability is limited by a wide bandgap. To enhance light absorption and improve power conversion efficiency, the use of indoline dyes as sensitizers has been proposed. In this study, we fabricated double perovskite solar cells incorporating the indoline dye D149 and employed electron spin resonance (ESR) spectroscopy to microscopically investigate the charge states and deterioration mechanisms within the operating devices.

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