Molecular Engineering of Non-Fullerene Acceptors with Extended Absorption for SWIR Organic Photodetectors
발표자
김하정 (충남대학교)
연구책임자
이재원 (충남대학교)
공동저자
김하정 (충남대학교), 이재원 (충남대학교)
초록
내용
Organic photodetectors are promising alternatives to inorganic devices due to their flexibility, low-cost fabrication, and tunable optoelectronic properties, with non-fullerene acceptors (NFAs) emerging as key materials for SWIR organic photodetectors.
This work reports the molecular design of NFAs based on an A–D–A′–D–A (ADA′DA) architecture, where long-wavelength absorption is induced by modifying the central A′ core and introducing electron-withdrawing groups. Indanone-derived terminal units are employed to maintain molecular planarity, resulting in narrowed optical bandgaps and absorption extending up to around 1400 nm, demonstrating their potential for SWIR detection.