What question did this study set out to answer?

Determine the physical mechanism behind concentration quenching in thermally activated delayed fluorescence materials and design structural interventions to minimize efficiency losses.

November 15, 2016Advanced Materials

Versatile Molecular Functionalization for Inhibiting Concentration Quenching of Thermally Activated Delayed Fluorescence

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Authors

LJLee Ji-YoungUlsan National Institute of Science and Technology NANaoya AizawaOsaka Gakuin University MNMasaki NumataTsuru University

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Implication

Experimental study demonstrates suppressed concentration quenching in delayed fluorescence emitters via geometric modulation, indicating a viable route to enhanced luminescence efficiency.

Key Points

Determine the physical mechanism behind concentration quenching in thermally activated delayed fluorescence materials and design structural interventions to minimize efficiency losses.
Modeled concentration-quenching pathways using the Dexter energy-transfer framework based on short-range electron-exchange interactions.
Engineered minor modulations in molecular geometric structure via targeted chemical functionalization to tune intermolecular distances.
Identified short-range electron-exchange interactions as the dominant driver of concentration quenching in delayed fluorescence emitters.
Achieved significant reductions in concentration quenching via molecular geometric alterations, resulting in elevated solid-state photoluminescence and electroluminescence quantum efficiencies.

Cite This Study

Ji-Young et al. (2016) studied this question.

synapsesocial.com/papers/69dd604b80eea7d3f699c38a https://doi.org/10.1002/adma.201604856

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Implication

Experimental study demonstrates suppressed concentration quenching in delayed fluorescence emitters via geometric modulation, indicating a viable route to enhanced luminescence efficiency.

Versatile Molecular Functionalization for Inhibiting Concentration Quenching of Thermally Activated Delayed Fluorescence

Discussion

Member takes

Implication

Key Points

Cite This Study

Versatile Molecular Functionalization for Inhibiting Concentration Quenching of Thermally Activated Delayed Fluorescence

Discussion

Member takes

Implication

Key Points

Cite This Study

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