Improved power efficiency in blue phosphorescent organic light-emitting diodes using diphenylmethyl linkage based high triplet energy hole transport materials

Chil Won Lee; Jun Yeob Lee

doi:10.1016/j.orgel.2012.11.004

Improved power efficiency in blue phosphorescent organic light-emitting diodes using diphenylmethyl linkage based high triplet energy hole transport materials

Chil Won Lee, Jun Yeob Lee

Dankook University

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

9 Scopus citations

Abstract

Improved power efficiency in blue phosphorescent organic light-emitting diodes (PHOLEDs) was demonstrated by using new high triplet energy hole-transport materials based on the diphenylmethyl linkage. Two high triplet energy hole-transport materials with diphenylamine or ditolyamine moieties linked through a diphenylmethyl linkage, 4,4′-(diphenylmethylene)bis(N,N- diphenylaniline) (TCBPA) and 4,4′-(diphenylmethylene)bis(N,N-di-p- tolylaniline), were synthesized and evaluated as hole-transport materials for blue PHOLEDs. The power efficiency of TCBPA was superior to that of standard 1,1-bis[4-[N,N′-di(p-tolyl)amino]phenyl]cyclohexane.

Original language	English
Pages (from-to)	370-377
Number of pages	8
Journal	Organic Electronics
Volume	14
Issue number	1
DOIs	https://doi.org/10.1016/j.orgel.2012.11.004
State	Published - Jan 2013
Externally published	Yes

Keywords

Blue phosphorescent device
Diphenylmethyl linkage
High triplet energy hole transport material
Power efficiency
Quantum efficiency

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10.1016/j.orgel.2012.11.004

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title = "Improved power efficiency in blue phosphorescent organic light-emitting diodes using diphenylmethyl linkage based high triplet energy hole transport materials",

abstract = "Improved power efficiency in blue phosphorescent organic light-emitting diodes (PHOLEDs) was demonstrated by using new high triplet energy hole-transport materials based on the diphenylmethyl linkage. Two high triplet energy hole-transport materials with diphenylamine or ditolyamine moieties linked through a diphenylmethyl linkage, 4,4′-(diphenylmethylene)bis(N,N- diphenylaniline) (TCBPA) and 4,4′-(diphenylmethylene)bis(N,N-di-p- tolylaniline), were synthesized and evaluated as hole-transport materials for blue PHOLEDs. The power efficiency of TCBPA was superior to that of standard 1,1-bis[4-[N,N′-di(p-tolyl)amino]phenyl]cyclohexane.",

keywords = "Blue phosphorescent device, Diphenylmethyl linkage, High triplet energy hole transport material, Power efficiency, Quantum efficiency",

author = "Lee, \{Chil Won\} and Lee, \{Jun Yeob\}",

year = "2013",

month = jan,

doi = "10.1016/j.orgel.2012.11.004",

language = "English",

volume = "14",

pages = "370--377",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

number = "1",

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T1 - Improved power efficiency in blue phosphorescent organic light-emitting diodes using diphenylmethyl linkage based high triplet energy hole transport materials

AU - Lee, Chil Won

AU - Lee, Jun Yeob

PY - 2013/1

Y1 - 2013/1

N2 - Improved power efficiency in blue phosphorescent organic light-emitting diodes (PHOLEDs) was demonstrated by using new high triplet energy hole-transport materials based on the diphenylmethyl linkage. Two high triplet energy hole-transport materials with diphenylamine or ditolyamine moieties linked through a diphenylmethyl linkage, 4,4′-(diphenylmethylene)bis(N,N- diphenylaniline) (TCBPA) and 4,4′-(diphenylmethylene)bis(N,N-di-p- tolylaniline), were synthesized and evaluated as hole-transport materials for blue PHOLEDs. The power efficiency of TCBPA was superior to that of standard 1,1-bis[4-[N,N′-di(p-tolyl)amino]phenyl]cyclohexane.

AB - Improved power efficiency in blue phosphorescent organic light-emitting diodes (PHOLEDs) was demonstrated by using new high triplet energy hole-transport materials based on the diphenylmethyl linkage. Two high triplet energy hole-transport materials with diphenylamine or ditolyamine moieties linked through a diphenylmethyl linkage, 4,4′-(diphenylmethylene)bis(N,N- diphenylaniline) (TCBPA) and 4,4′-(diphenylmethylene)bis(N,N-di-p- tolylaniline), were synthesized and evaluated as hole-transport materials for blue PHOLEDs. The power efficiency of TCBPA was superior to that of standard 1,1-bis[4-[N,N′-di(p-tolyl)amino]phenyl]cyclohexane.

KW - Blue phosphorescent device

KW - Diphenylmethyl linkage

KW - High triplet energy hole transport material

KW - Power efficiency

KW - Quantum efficiency

UR - https://www.scopus.com/pages/publications/84870807056

U2 - 10.1016/j.orgel.2012.11.004

DO - 10.1016/j.orgel.2012.11.004

M3 - Article

AN - SCOPUS:84870807056

SN - 1566-1199

VL - 14

SP - 370

EP - 377

JO - Organic Electronics

JF - Organic Electronics

IS - 1

ER -

Improved power efficiency in blue phosphorescent organic light-emitting diodes using diphenylmethyl linkage based high triplet energy hole transport materials

Abstract

Keywords

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