High efficiency green phosphorescent OLEDs with triplet exciton confinement architecture

Woo Sik Jeon; Chandramouli Kulshreshtha; Jae Hyung Yu; Myung Jin Lim; Jung Soo Park; Jang Hyuk Kwon

doi:10.1016/j.cap.2010.07.024

High efficiency green phosphorescent OLEDs with triplet exciton confinement architecture

Woo Sik Jeon
, Chandramouli Kulshreshtha
, Jae Hyung Yu
, Myung Jin Lim
, Jung Soo Park
, Jang Hyuk Kwon

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

19 Citations (Scopus)

Abstract

We report highly efficient green phosphorescent devices comprising a triplet exciton confinement configuration, using 4,4′-N,N′- dicarbazoleterpheyl (CTP) as a narrow band-gap host and high triplet energy charge transporting layers. Maximum current and power efficiencies of 56.89 cd/A, and 48.22 lm/W (external quantum efficiency of 18.0%) are demonstrated by optimizing the doping concentration. Such high efficiency is attributed to good confinement effect of triplet excitons by narrow band-gap CTP host with reasonable doping concentration and introduction of good exciton blocking layers at the emitting layer interfaces.

Original language	English
Pages (from-to)	311-314
Number of pages	4
Journal	Current Applied Physics
Volume	11
Issue number	3
DOIs	https://doi.org/10.1016/j.cap.2010.07.024
Publication status	Published - May 2011

Bibliographical note

Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0074667). Ministry of Commerce, Industry, and Energy of the Korean government .

Keywords

Exciton
Green
OLED
Phosphorescent
Triplet

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10.1016/j.cap.2010.07.024

Cite this

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title = "High efficiency green phosphorescent OLEDs with triplet exciton confinement architecture",

abstract = "We report highly efficient green phosphorescent devices comprising a triplet exciton confinement configuration, using 4,4′-N,N′- dicarbazoleterpheyl (CTP) as a narrow band-gap host and high triplet energy charge transporting layers. Maximum current and power efficiencies of 56.89 cd/A, and 48.22 lm/W (external quantum efficiency of 18.0\%) are demonstrated by optimizing the doping concentration. Such high efficiency is attributed to good confinement effect of triplet excitons by narrow band-gap CTP host with reasonable doping concentration and introduction of good exciton blocking layers at the emitting layer interfaces.",

keywords = "Exciton, Green, OLED, Phosphorescent, Triplet",

author = "Jeon, \{Woo Sik\} and Chandramouli Kulshreshtha and Yu, \{Jae Hyung\} and Lim, \{Myung Jin\} and Park, \{Jung Soo\} and Kwon, \{Jang Hyuk\}",

note = "Funding Information: This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0074667). Ministry of Commerce, Industry, and Energy of the Korean government .",

year = "2011",

month = may,

doi = "10.1016/j.cap.2010.07.024",

language = "English",

volume = "11",

pages = "311--314",

journal = "Current Applied Physics",

issn = "1567-1739",

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TY - JOUR

T1 - High efficiency green phosphorescent OLEDs with triplet exciton confinement architecture

AU - Jeon, Woo Sik

AU - Kulshreshtha, Chandramouli

AU - Yu, Jae Hyung

AU - Lim, Myung Jin

AU - Park, Jung Soo

AU - Kwon, Jang Hyuk

N1 - Funding Information: This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0074667). Ministry of Commerce, Industry, and Energy of the Korean government .

PY - 2011/5

Y1 - 2011/5

N2 - We report highly efficient green phosphorescent devices comprising a triplet exciton confinement configuration, using 4,4′-N,N′- dicarbazoleterpheyl (CTP) as a narrow band-gap host and high triplet energy charge transporting layers. Maximum current and power efficiencies of 56.89 cd/A, and 48.22 lm/W (external quantum efficiency of 18.0%) are demonstrated by optimizing the doping concentration. Such high efficiency is attributed to good confinement effect of triplet excitons by narrow band-gap CTP host with reasonable doping concentration and introduction of good exciton blocking layers at the emitting layer interfaces.

AB - We report highly efficient green phosphorescent devices comprising a triplet exciton confinement configuration, using 4,4′-N,N′- dicarbazoleterpheyl (CTP) as a narrow band-gap host and high triplet energy charge transporting layers. Maximum current and power efficiencies of 56.89 cd/A, and 48.22 lm/W (external quantum efficiency of 18.0%) are demonstrated by optimizing the doping concentration. Such high efficiency is attributed to good confinement effect of triplet excitons by narrow band-gap CTP host with reasonable doping concentration and introduction of good exciton blocking layers at the emitting layer interfaces.

KW - Exciton

KW - Green

KW - OLED

KW - Phosphorescent

KW - Triplet

UR - https://www.scopus.com/pages/publications/79951670501

U2 - 10.1016/j.cap.2010.07.024

DO - 10.1016/j.cap.2010.07.024

M3 - Article

AN - SCOPUS:79951670501

SN - 1567-1739

VL - 11

SP - 311

EP - 314

JO - Current Applied Physics

JF - Current Applied Physics

IS - 3

ER -

High efficiency green phosphorescent OLEDs with triplet exciton confinement architecture

Abstract

Bibliographical note

Keywords

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