By utilizing a green thermally activated delayed fluorescence (TADF) material with an appropriate device architecture, we demonstrate the performance of indium-phosphide-based red quantum dot light-emitting diodes (QLEDs) with an external quantum efficiency that exceeds 11%. The prolonged photoluminescence lifetime in the quantum dot/TADF bilayer system suggests that there exists sufficient excitonic energy transfer from the TADF molecules to the direct bandgap of the quantum dot emitters. The combination of TADF and quantum dot materials can facilitate development of highly efficient cadmium-free red/green/blue QLEDs.
|Number of pages||4|
|Journal||Digest of Technical Papers - SID International Symposium|
|Publication status||Published - 2020|
|Event||57th SID International Symposium, Seminar and Exhibition, Display Week, 2020 - Virtual, Online|
Duration: Aug 3 2020 → Aug 7 2020
All Science Journal Classification (ASJC) codes