Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 15, 2024
Abstract The cathode interface material is pivotal for achieving excellent photovoltaic performance and device stability in organic solar cells (OSCs). However, currently, few materials can simultaneously satisfy multiple criteria such as low cost, high efficiency, insensitivity to film thickness, good stability. To address this challenge, a novel perylene diimide (PDI) derivative, P‐C3T designed synthesized, by incorporating stable free radical unit TEMPO polar quaternary ammonium salt side chains. facile synthesize cost‐effective, while also exhibiting conductivity ohmic contact characteristics OSCs. When utilized the material, based on D18:L8‐BO achieves remarkable power conversion efficiency (PCE) of 19.52%, which one highest levels reported binary single‐junction Notably, devices exhibit with PCE remaining at 95% initial even thickness 40 nm. Furthermore, ‐based OSCs demonstrate exceptional storage improved light In summary, its PCE, insensitivity, stability, anticipated be promising candidate large‐area roll‐to‐roll processing
Language: Английский