Przemysław DataOrganic electronics & photophysics
PRZEMYSŁAW DATA / MECHANISMS

Mechanisms

Interactive visualisations of charge transport, excited-state pathways and light emission. Select a topic, then press Play to follow the mechanism.

Enable JavaScript to explore the interactive diagrams. A simplified TADF scheme is shown below.

EXCITED-STATE PHOTOPHYSICS

Thermally activated delayed fluorescence

Thermal energy enables reverse intersystem crossing (RISC) from T₁ to S₁. Fluorescence then occurs from S₁ to S₀.

Simplified scheme · selected pathways · not to scale.
Mechanism reference

Simplified TADF energy-level scheme Energy increases upwards. The excited singlet S1 lies above the triplet T1. Intersystem crossing connects S1 to T1. Thermally activated reverse intersystem crossing returns the population from T1 to S1, followed by fluorescence from S1 to the ground state S0. Only selected pathways are shown; the scheme is not to scale. S₁ T₁ S₀ RISC ISC hν ΔEST Energy