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 | |
| 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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Hiraga, Y., Nishide, J. I., Nakanotani, H., Aonuma, M., & Adachi, C. (2015). High-efficiency sky-blue organic light-emitting diodes utilizing thermally-activated delayed fluorescence. IEICE Transactions on Electronics, E98C(10), 971-976. https://doi.org/10.1587/transele.E98.C.971