Abstract
The triplet energy transfer processes from Ir(ppy) 3 into hole-transport layer (HTL) were investigated. The requirements for the triplet energy level of HTLs need to obtained high electrophosphorescence efficiency were also analyzed. It was found that, in the case of TPD, transient PL measurement revealed that the triple excitons in Ir(ppy) 3 were partilaay confined at room temperature. The results show that, employing 1,1-bis[(di-4-tolylamino)phenyl]cyclohexane (TAPC) as a hole-transport layer achieved strong confinement of the Ir(ppy) 3 triplet exciton.
| Original language | English |
|---|---|
| Pages (from-to) | 7798-7802 |
| Number of pages | 5 |
| Journal | Journal of Applied Physics |
| Volume | 95 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Jun 15 2004 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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Goshi, K., Kwong, R., Brown, J. J., Sasabe, H., & Adachi, C. (2004). Triplet exciton confinement and unconfinement by adjacent hole-transport layers. Journal of Applied Physics, 95(12), 7798-7802. https://doi.org/10.1063/1.1751232