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Engineering Fast Reverse Intersystem Crossing and Radiative Decay in [1,2,4]Triazolo[1,5-a]pyridine-Based TADF Emitters via Donor Strength and Positional Control of Dihedral Angle and Reorganization Energy: A Density Functional Theory Study

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Achieving a balance between the radiative decay rate (kr) and the reverse intersystem-crossing (rISC) rate (krISC) persists as a fundamental hurdle in thermally activated delayed-fluorescence (TADF) emitters because the processes depend oppositely on the overl... ...