Triplet host engineering for triplet exciton management in phosphorescent organic light-emitting diodes

Sung Hyun Kim; Jyongsik Jang; Kyoung Soo Yook; Jun Yeob Lee; Myoung Seon Gong; Sangouk Ryu; Gee Keun Chang; Ho Jung Chang

doi:10.1063/1.2841058

Triplet host engineering for triplet exciton management in phosphorescent organic light-emitting diodes

Sung Hyun Kim
, Jyongsik Jang
, Kyoung Soo Yook
, Jun Yeob Lee
, Myoung Seon Gong
, Sangouk Ryu
, Gee Keun Chang
, Ho Jung Chang

Seoul National University
Dankook University

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

45 Scopus citations

Abstract

The device performances of green phosphorescent organic light-emitting diodes with a triplet mixed host emitting layer were correlated with the energy levels and composition of the host materials. Two hole-transport-type host materials, (4, 4′ -N, N′ -dicarbazole)biphenyl (CBP) and 4, 4′, 4″ -tris(N -carbazolyl)triphenylamine (TCTA), were combined with two electron-transport-type host materials, 1,3,5-tris(N -phenylbenzimidazole- 2-yl)benzene (TPBI) and PH1. The maximum quantum efficiency was obtained in the 5:5 mixed host in the case of TCTA:TPBI and TCTA:PH1, while CBP:PH1 showed the best performances in the 9:1 mixed host. The quantum efficiency of the green mixed host devices was improved by more than 50% compared with that of the corresponding single host devices.

Original language	English
Article number	054502
Journal	Journal of Applied Physics
Volume	103
Issue number	5
DOIs	https://doi.org/10.1063/1.2841058
State	Published - 2008
Externally published	Yes

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@article{293f6e88059147fa8ff1df2809172785,

title = "Triplet host engineering for triplet exciton management in phosphorescent organic light-emitting diodes",

abstract = "The device performances of green phosphorescent organic light-emitting diodes with a triplet mixed host emitting layer were correlated with the energy levels and composition of the host materials. Two hole-transport-type host materials, (4, 4′ -N, N′ -dicarbazole)biphenyl (CBP) and 4, 4′, 4″ -tris(N -carbazolyl)triphenylamine (TCTA), were combined with two electron-transport-type host materials, 1,3,5-tris(N -phenylbenzimidazole- 2-yl)benzene (TPBI) and PH1. The maximum quantum efficiency was obtained in the 5:5 mixed host in the case of TCTA:TPBI and TCTA:PH1, while CBP:PH1 showed the best performances in the 9:1 mixed host. The quantum efficiency of the green mixed host devices was improved by more than 50\% compared with that of the corresponding single host devices.",

author = "Kim, \{Sung Hyun\} and Jyongsik Jang and Yook, \{Kyoung Soo\} and Lee, \{Jun Yeob\} and Gong, \{Myoung Seon\} and Sangouk Ryu and Chang, \{Gee Keun\} and Chang, \{Ho Jung\}",

year = "2008",

doi = "10.1063/1.2841058",

language = "English",

volume = "103",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

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T1 - Triplet host engineering for triplet exciton management in phosphorescent organic light-emitting diodes

AU - Kim, Sung Hyun

AU - Jang, Jyongsik

AU - Yook, Kyoung Soo

AU - Lee, Jun Yeob

AU - Gong, Myoung Seon

AU - Ryu, Sangouk

AU - Chang, Gee Keun

AU - Chang, Ho Jung

PY - 2008

Y1 - 2008

N2 - The device performances of green phosphorescent organic light-emitting diodes with a triplet mixed host emitting layer were correlated with the energy levels and composition of the host materials. Two hole-transport-type host materials, (4, 4′ -N, N′ -dicarbazole)biphenyl (CBP) and 4, 4′, 4″ -tris(N -carbazolyl)triphenylamine (TCTA), were combined with two electron-transport-type host materials, 1,3,5-tris(N -phenylbenzimidazole- 2-yl)benzene (TPBI) and PH1. The maximum quantum efficiency was obtained in the 5:5 mixed host in the case of TCTA:TPBI and TCTA:PH1, while CBP:PH1 showed the best performances in the 9:1 mixed host. The quantum efficiency of the green mixed host devices was improved by more than 50% compared with that of the corresponding single host devices.

AB - The device performances of green phosphorescent organic light-emitting diodes with a triplet mixed host emitting layer were correlated with the energy levels and composition of the host materials. Two hole-transport-type host materials, (4, 4′ -N, N′ -dicarbazole)biphenyl (CBP) and 4, 4′, 4″ -tris(N -carbazolyl)triphenylamine (TCTA), were combined with two electron-transport-type host materials, 1,3,5-tris(N -phenylbenzimidazole- 2-yl)benzene (TPBI) and PH1. The maximum quantum efficiency was obtained in the 5:5 mixed host in the case of TCTA:TPBI and TCTA:PH1, while CBP:PH1 showed the best performances in the 9:1 mixed host. The quantum efficiency of the green mixed host devices was improved by more than 50% compared with that of the corresponding single host devices.

UR - https://www.scopus.com/pages/publications/40849083820

U2 - 10.1063/1.2841058

DO - 10.1063/1.2841058

M3 - Article

AN - SCOPUS:40849083820

SN - 0021-8979

VL - 103

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 5

M1 - 054502

ER -

Triplet host engineering for triplet exciton management in phosphorescent organic light-emitting diodes

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