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 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
Triplet exciton confinement and unconfinement by adjacent hole-transport layers. / Goshi, Kenichi; Kwong, Raymond; Brown, Julie J.; Sasabe, Hiroyuki; Adachi, Chihaya.
In: Journal of Applied Physics, Vol. 95, No. 12, 15.06.2004, p. 7798-7802.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Triplet exciton confinement and unconfinement by adjacent hole-transport layers
AU - Goshi, Kenichi
AU - Kwong, Raymond
AU - Brown, Julie J.
AU - Sasabe, Hiroyuki
AU - Adachi, Chihaya
PY - 2004/6/15
Y1 - 2004/6/15
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=3142637442&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=3142637442&partnerID=8YFLogxK
U2 - 10.1063/1.1751232
DO - 10.1063/1.1751232
M3 - Article
AN - SCOPUS:3142637442
VL - 95
SP - 7798
EP - 7802
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 12
ER -