High-efficiency sky-blue organic light-emitting diodes utilizing thermally-activated delayed fluorescence

Yasuhide Hiraga; Jun Ichi Nishide; Hajime Nakanotani; Masaki Aonuma; Chihaya Adachi

doi:10.1587/transele.E98.C.971

High-efficiency sky-blue organic light-emitting diodes utilizing thermally-activated delayed fluorescence

Yasuhide Hiraga, Jun Ichi Nishide, Hajime Nakanotani, Masaki Aonuma, Chihaya Adachi

Applied Chemistry

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

A highly efficient sky-blue organic light-emitting diode (OLED) based on a thermally-activated delayed fluorescence (TADF) molecule, 1,2-bis(carbazol-9-yl)-4,5-dicyanobenzene (2CzPN), was studied. The sky-blue OLED exhibited a maximum external electroluminescence quantum efficiency (ηEQE) of over 24.0%. In addition, a white OLED using 2CzPN combined with green and orange TADF emitters showed a high ηEQE of 17.3% with a maximum power efficiency of 52.3 lm/W and Commission Internationale de l'Eclairage coordinates of (0.32, 0.43).

Original language	English
Pages (from-to)	971-976
Number of pages	6
Journal	IEICE Transactions on Electronics
Volume	E98C
Issue number	10
DOIs	https://doi.org/10.1587/transele.E98.C.971
Publication status	Published - Oct 1 2015

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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title = "High-efficiency sky-blue organic light-emitting diodes utilizing thermally-activated delayed fluorescence",

abstract = "A highly efficient sky-blue organic light-emitting diode (OLED) based on a thermally-activated delayed fluorescence (TADF) molecule, 1,2-bis(carbazol-9-yl)-4,5-dicyanobenzene (2CzPN), was studied. The sky-blue OLED exhibited a maximum external electroluminescence quantum efficiency (ηEQE) of over 24.0%. In addition, a white OLED using 2CzPN combined with green and orange TADF emitters showed a high ηEQE of 17.3% with a maximum power efficiency of 52.3 lm/W and Commission Internationale de l'Eclairage coordinates of (0.32, 0.43).",

author = "Yasuhide Hiraga and Nishide, {Jun Ichi} and Hajime Nakanotani and Masaki Aonuma and Chihaya Adachi",

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T1 - High-efficiency sky-blue organic light-emitting diodes utilizing thermally-activated delayed fluorescence

AU - Hiraga, Yasuhide

AU - Nishide, Jun Ichi

AU - Nakanotani, Hajime

AU - Aonuma, Masaki

AU - Adachi, Chihaya

PY - 2015/10/1

Y1 - 2015/10/1

N2 - A highly efficient sky-blue organic light-emitting diode (OLED) based on a thermally-activated delayed fluorescence (TADF) molecule, 1,2-bis(carbazol-9-yl)-4,5-dicyanobenzene (2CzPN), was studied. The sky-blue OLED exhibited a maximum external electroluminescence quantum efficiency (ηEQE) of over 24.0%. In addition, a white OLED using 2CzPN combined with green and orange TADF emitters showed a high ηEQE of 17.3% with a maximum power efficiency of 52.3 lm/W and Commission Internationale de l'Eclairage coordinates of (0.32, 0.43).

AB - A highly efficient sky-blue organic light-emitting diode (OLED) based on a thermally-activated delayed fluorescence (TADF) molecule, 1,2-bis(carbazol-9-yl)-4,5-dicyanobenzene (2CzPN), was studied. The sky-blue OLED exhibited a maximum external electroluminescence quantum efficiency (ηEQE) of over 24.0%. In addition, a white OLED using 2CzPN combined with green and orange TADF emitters showed a high ηEQE of 17.3% with a maximum power efficiency of 52.3 lm/W and Commission Internationale de l'Eclairage coordinates of (0.32, 0.43).

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High-efficiency sky-blue organic light-emitting diodes utilizing thermally-activated delayed fluorescence

Abstract

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