[16a-K405-1~9] 12.5 Organic and hybrid solar cells

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)English Presentation

[16a-K405-8] Dry-Wet Hybrid Strategies for MAPbI₃ Perovskite Films on Various Substrates: Minority Carrier Lifetime Analysis

〇CHENXI LI¹, Huynh Thi Cam Tu¹, Keisuke Ohdaira¹, Peng Liu², Md Shahiduzzaman², Tetsuya Taima² (1.JAIST, 2.Kanazawa Univ.)

Keywords:

Minority carrier lifetime,Film formation process

Perovskite solar cells (PSCs) exhibit high efficiency and low cost, with MAPbI₃ serving as the core material. However, their inferior environmental stability adversely impacts the minority carrier lifetime (τ). This research employs a dry-wet combination approach to optimize film quality on substrates such as ordinary soda-lime glass, RIE-treated glass, and textured n-type silicon. τ values are analyzed using μ-PCD and tri-exponential fitting, unveiling rapid, medium, and slow recombination processes. The findings indicate that τ average (τ_ave.) is predominantly influenced by the medium-speed and slow recombination stages, underscoring the critical role of optimizing grain boundaries and bulk quality in enhancing perovskite performance.