Abstract
Butterfly-shaped luminescent benzophenone derivatives with small energy gaps between their singlet and triplet excited states are used to achieve efficient full-color delayed fluorescence. Organic light-emitting diodes (OLEDs) with these benzophenone derivatives doped in the emissive layer can generate electroluminescence ranging from blue to orange-red and white, with maximum external quantum efficiencies of up to 14.3%. Triplet excitons are efficiently harvested through delayed fluorescence channels.
Original language | English |
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Pages (from-to) | 6402-6406 |
Number of pages | 5 |
Journal | Angewandte Chemie - International Edition |
Volume | 53 |
Issue number | 25 |
DOIs | |
State | Published - 16 Jun 2014 |
Keywords
- benzophenone
- donor-acceptor systems
- organic light-emitting diodes
- organic semiconductors
- photochemistry