Multiple effects of aromatic substituents on excited-state properties and singlet fission process in azaquinodimethane systems.

ABSTRACT: Singlet fission (SF) could offset the thermalization loss of high-energy photons via multiexciton generations, thus holding great potential in improving the power conversion efficiency of solar cells. However, the development of SF-based devices has basically remained stagnant so far owing to the limited scope of practical SF materials. Therefore, designing and developing practical SF material systems have been imperative, yet challenging so far. In this work, we comprehensively investigated the effects of aromatic substituents on excited-state properties and SF process of azaquinodimethane systems. Results indicated that the aromatic substituents have a significant influence on molecular diradical characters, thereby determining the excited-state energetics of the SF material syste

SUBMITTER: Zhao Z 

PROVIDER: S-EPMC11865949 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature