Triplet exciton confinement and unconfinement by adjacent hole-transport layers

Kenichi Goushi; Raymond Kwong; Julie J. Brown; Hiroyuki Sasabe; Chihaya Adachi

doi:10.1063/1.1751232

Triplet exciton confinement and unconfinement by adjacent hole-transport layers

Kenichi Goushi, Raymond Kwong, Julie J. Brown, Hiroyuki Sasabe, Chihaya Adachi

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

275 Citations (Scopus)

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	https://doi.org/10.1063/1.1751232
Publication status	Published - Jun 15 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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title = "Triplet exciton confinement and unconfinement by adjacent hole-transport layers",

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.",

author = "Kenichi Goushi and Raymond Kwong and Brown, {Julie J.} and Hiroyuki Sasabe and Chihaya Adachi",

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T1 - Triplet exciton confinement and unconfinement by adjacent hole-transport layers

AU - Goushi, 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.

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

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Triplet exciton confinement and unconfinement by adjacent hole-transport layers

Abstract

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