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Perovskite Materials and ApplicationsTiO2 Photocatalysis and Solar CellsOrganic Electronics and Photovoltaics

Enhanced photovoltaic performance and minimal hysteresis of perovskite solar cells using caffeine-modified MAPbI3 light-harvesting material

M. I. Amanyi, E. Danladi, A. O. Salawu, A. Alhaji, K. Ogunmoye, O. E. Onah, M. Ekwu

2026.3.25Semiconductor Physics Quantum Electronics & Optoelectronics

DOI: 10.15407/spqeo29.01.105

Abstract

Perovskite solar cells modified with caffeine were investigated. Caffeine incorporation improves absorption, crystallinity, and device performance, while reducing hysteresis. The best device (1.0 wt% caffeine) achieved PCE = 14.072%, FF = 0.640, Jsc = 23.083 mA/cm, Voc = 0.953 V. Performance enhancement is attributed to reduced recombination and improved charge transport.

Citation format

AMANYI, M. I., et al. Enhanced photovoltaic performance and minimal hysteresis of perovskite solar cells using caffeine-modified mapbi3 light-harvesting material. Semiconductor Physics Quantum Electronics & Optoelectronics, 2026, 29(01): 105–117.