Ultrafast study of substituted-position-dependent excited-state evolution in benzophenone-carbazole dyads
Jiayu Li, Sirui Yang, Ziqi Deng, Shao‐Fei Ni, Shunli Chen, Li Dang, Ming‐De Li
Abstract
Excited state evolution channels of BP-Cz dyads can be modified by tuning the substituted position of donor and acceptor, ortho -substituted BP- o -Cz undergoes slow ISC and fast CR processes, meta - and para -substituted BP- m -Cz and BP- p -Cz experience fast ISC and slow CR processes.
Topics & Concepts
Intersystem crossingExcited statePhosphorescencePhotochemistryBenzophenoneUltrafast laser spectroscopyCarbazoleIntramolecular forceSinglet fissionChemistryTriplet stateSinglet stateMaterials scienceAtomic physicsFluorescenceSpectroscopyStereochemistryPhysicsOpticsQuantum mechanicsOrganic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsPhotochemistry and Electron Transfer Studies