Abstract
An orange-red organic light-emitting diode containing a heptazine derivative exhibits high performance with a maximum external quantum efficiency of 17.5 ± 1.3% and a peak luminance of 17000 ± 1600 cd m -2 without any light out-coupling enhancement. The high electroluminescence performance can be ascribed to the presence of an efficient up-conversion channel from the lowest triplet state to the lowest singlet state.
| Original language | English |
|---|---|
| Pages (from-to) | 3319-3323 |
| Number of pages | 5 |
| Journal | Advanced Materials |
| Volume | 25 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - Jun 25 2013 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
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Cite this
Li, J., Nakagawa, T., Macdonald, J., Zhang, Q., Nomura, H., Miyazaki, H., & Adachi, C. (2013). Highly efficient organic light-emitting diode based on a hidden thermally activated delayed fluorescence channel in a heptazine derivative. Advanced Materials, 25(24), 3319-3323. https://doi.org/10.1002/adma.201300575