A thermally stable hole injection material for use in organic light-emitting diodes

Jun Yeob Lee; Jong Yek Park; Soo Hyun Min; Kyu Wang Lee; Yong Gu Baek

doi:10.1016/j.tsf.2007.03.056

A thermally stable hole injection material for use in organic light-emitting diodes

Jun Yeob Lee, Jong Yek Park, Soo Hyun Min, Kyu Wang Lee, Yong Gu Baek

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

11 Scopus citations

Abstract

A thermally stable hole injection material, 4,4′-bis-(3,5-bis-(diphenylamino)-phenyl)-1,1′-binaphthyl(PP BN), was synthesized and the device performances of the organic light-emitting diodes(OLEDs) with PPBN as a hole injection layer were investigated. Glass transition temperature of PPBN could be enhanced to 148 °C by the introduction of a rigid diphenylbinaphthyl core in the molecular structure. The use of PPBN as a hole injection layer for OLEDs lowered the driving voltage and enhanced the light-emitting efficiency. The power efficiency of PPBN based devices with tris(8-hydroxyquinoline)aluminium as an emitting material could be improved by 80% compared with that of 4,4′,4″-tris(2-naphthylphenylamino)triphenylamine based devices.

Original language	English
Pages (from-to)	7726-7731
Number of pages	6
Journal	Thin Solid Films
Volume	515
Issue number	20-21
DOIs	https://doi.org/10.1016/j.tsf.2007.03.056
State	Published - 31 Jul 2007
Externally published	Yes

Keywords

Glass transition temperature
Hole injection material
Power efficiency

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10.1016/j.tsf.2007.03.056

Cite this

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title = "A thermally stable hole injection material for use in organic light-emitting diodes",

abstract = "A thermally stable hole injection material, 4,4′-bis-(3,5-bis-(diphenylamino)-phenyl)-1,1′-binaphthyl(PP BN), was synthesized and the device performances of the organic light-emitting diodes(OLEDs) with PPBN as a hole injection layer were investigated. Glass transition temperature of PPBN could be enhanced to 148 °C by the introduction of a rigid diphenylbinaphthyl core in the molecular structure. The use of PPBN as a hole injection layer for OLEDs lowered the driving voltage and enhanced the light-emitting efficiency. The power efficiency of PPBN based devices with tris(8-hydroxyquinoline)aluminium as an emitting material could be improved by 80\% compared with that of 4,4′,4″-tris(2-naphthylphenylamino)triphenylamine based devices.",

keywords = "Glass transition temperature, Hole injection material, Power efficiency",

author = "Lee, \{Jun Yeob\} and Park, \{Jong Yek\} and Min, \{Soo Hyun\} and Lee, \{Kyu Wang\} and Baek, \{Yong Gu\}",

year = "2007",

month = jul,

day = "31",

doi = "10.1016/j.tsf.2007.03.056",

language = "English",

volume = "515",

pages = "7726--7731",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier B.V.",

number = "20-21",

}

TY - JOUR

T1 - A thermally stable hole injection material for use in organic light-emitting diodes

AU - Lee, Jun Yeob

AU - Park, Jong Yek

AU - Min, Soo Hyun

AU - Lee, Kyu Wang

AU - Baek, Yong Gu

PY - 2007/7/31

Y1 - 2007/7/31

N2 - A thermally stable hole injection material, 4,4′-bis-(3,5-bis-(diphenylamino)-phenyl)-1,1′-binaphthyl(PP BN), was synthesized and the device performances of the organic light-emitting diodes(OLEDs) with PPBN as a hole injection layer were investigated. Glass transition temperature of PPBN could be enhanced to 148 °C by the introduction of a rigid diphenylbinaphthyl core in the molecular structure. The use of PPBN as a hole injection layer for OLEDs lowered the driving voltage and enhanced the light-emitting efficiency. The power efficiency of PPBN based devices with tris(8-hydroxyquinoline)aluminium as an emitting material could be improved by 80% compared with that of 4,4′,4″-tris(2-naphthylphenylamino)triphenylamine based devices.

AB - A thermally stable hole injection material, 4,4′-bis-(3,5-bis-(diphenylamino)-phenyl)-1,1′-binaphthyl(PP BN), was synthesized and the device performances of the organic light-emitting diodes(OLEDs) with PPBN as a hole injection layer were investigated. Glass transition temperature of PPBN could be enhanced to 148 °C by the introduction of a rigid diphenylbinaphthyl core in the molecular structure. The use of PPBN as a hole injection layer for OLEDs lowered the driving voltage and enhanced the light-emitting efficiency. The power efficiency of PPBN based devices with tris(8-hydroxyquinoline)aluminium as an emitting material could be improved by 80% compared with that of 4,4′,4″-tris(2-naphthylphenylamino)triphenylamine based devices.

KW - Glass transition temperature

KW - Hole injection material

KW - Power efficiency

UR - https://www.scopus.com/pages/publications/34547749853

U2 - 10.1016/j.tsf.2007.03.056

DO - 10.1016/j.tsf.2007.03.056

M3 - Article

AN - SCOPUS:34547749853

SN - 0040-6090

VL - 515

SP - 7726

EP - 7731

JO - Thin Solid Films

JF - Thin Solid Films

IS - 20-21

ER -

A thermally stable hole injection material for use in organic light-emitting diodes

Abstract

Keywords

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