TY - JOUR
T1 - Efficient cadmium-free quantum dot light-emitting diodes
AU - Mo, Hin Wai
AU - Harada, Kentaro
AU - Miyazaki, Hiroshi
AU - Adachi, Chihaya
N1 - Funding Information:
This work was financially supported by the Program for Building Regional Innovation Ecosystems of the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and partly supported by the International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) program, which is sponsored by MEXT, and the Japan Science and Technology Agency (JST) ERATO Adachi Molecular Exciton Engineering Project under JST ERATO Grant Number JPMJER1305.
Publisher Copyright:
© 2020 SID.
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
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U2 - 10.1002/sdtp.14008
DO - 10.1002/sdtp.14008
M3 - Conference article
AN - SCOPUS:85094185642
SN - 0097-966X
VL - 51
SP - 870
EP - 873
JO - Digest of Technical Papers - SID International Symposium
JF - Digest of Technical Papers - SID International Symposium
IS - 1
T2 - 57th SID International Symposium, Seminar and Exhibition, Display Week, 2020
Y2 - 3 August 2020 through 7 August 2020
ER -