Unlocking Dual Functionality in Triazine‐Based Emitters: Synergistic Enhancement of Two‐Photon Absorption and TADF‐OLED Performance with Electron‐Withdrawing Substituents

• Published in: Advanced materials (Weinheim) p. e2509857
• Main Authors: Chitose, Youhei, Mageswari, Gomathi Vinayakam, Zenke, Ryota, Ide, Toshiharu, Kohata, Shintaro, Lin, Ja‐Hon, Lin, Tzu‐Chau, Tsuchiya, Youichi, Adachi, Chihaya
• Format: Journal Article
• Language: English
• Published: Germany 29.07.2025
• Subjects: two‐photon absorption; thermally activated delayed fluorescence; organic light‐emitting diodes; reversed intersystem crossing; electron‐withdrawing‐enhanced intramolecular charge transfer; orbital overlap

The simultaneous realization of two‐photon absorption (2PA) and thermally activated delayed fluorescence (TADF) in a single molecular system remains challenging due to an inherent trade‐off in their molecular design requirements. In this study, we present a strategy to enhance both properties by int...