A novel host material with high thermal stability for green electrophosphorescent device

Wenqing Liang; Zhixiang Gao; Wenxuan Song; Jianhua Su; Kunpeng Guo; Qingchen Dong; Jinhai Huang; Wai Yeung Wong

doi:10.1016/j.tet.2016.01.056

A novel host material with high thermal stability for green electrophosphorescent device

Wenqing Liang, Zhixiang Gao, Wenxuan Song, Jianhua Su, Kunpeng Guo, Qingchen Dong, Jinhai Huang, Wai Yeung Wong

Research output: Journal article publication › Journal article › Academic research › peer-review

8 Citations (Scopus)

Abstract

A new bipolar host material based on triphenylamine, fluorene and 1,2-diphenyl-1H-benzo[d]imidazole moieties, N,N-diphenyl-4-(9-phenyl-2-(4-(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)-9H-fluoren-9-yl)aniline (DPPBIPFA), was designed and synthesized. The as-synthesized material was well characterized by1H and13C NMR spectroscopy, high-resolution mass spectrometry and thermogravimetric analysis, respectively. The photophysical and electrochemical properties of the material were also studied. The material exhibited an excellent thermal stability (Td= 475 °C), electrochemical stability and high triplet energy (2.68 eV). A green phosphorescent organic light-emitting diode (PhOLED) device based on DPPBIPFA as the host material and Ir(ppy)3as the dopant was fabricated, which displayed favorable electrophosphorescent properties with a turn-on voltage of 3.75 V, a maximum brightness of 1685 cd/m2and a maximum current efficiency of 4.26 cd/A.

Original language	English
Pages (from-to)	1505-1510
Number of pages	6
Journal	Tetrahedron
Volume	72
Issue number	11
DOIs	https://doi.org/10.1016/j.tet.2016.01.056
Publication status	Published - 1 Jan 2016
Externally published	Yes

Keywords

Bipolar host material
Doped OLED
High thermal stability
Phosphorescence

ASJC Scopus subject areas

Biochemistry
Drug Discovery
Organic Chemistry

More information

10.1016/j.tet.2016.01.056

Cite this

@article{27cc55ecb30e4c6da696f15ac53c4cfc,

title = "A novel host material with high thermal stability for green electrophosphorescent device",

abstract = "A new bipolar host material based on triphenylamine, fluorene and 1,2-diphenyl-1H-benzo[d]imidazole moieties, N,N-diphenyl-4-(9-phenyl-2-(4-(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)-9H-fluoren-9-yl)aniline (DPPBIPFA), was designed and synthesized. The as-synthesized material was well characterized by1H and13C NMR spectroscopy, high-resolution mass spectrometry and thermogravimetric analysis, respectively. The photophysical and electrochemical properties of the material were also studied. The material exhibited an excellent thermal stability (Td= 475 °C), electrochemical stability and high triplet energy (2.68 eV). A green phosphorescent organic light-emitting diode (PhOLED) device based on DPPBIPFA as the host material and Ir(ppy)3as the dopant was fabricated, which displayed favorable electrophosphorescent properties with a turn-on voltage of 3.75 V, a maximum brightness of 1685 cd/m2and a maximum current efficiency of 4.26 cd/A.",

keywords = "Bipolar host material, Doped OLED, High thermal stability, Phosphorescence",

author = "Wenqing Liang and Zhixiang Gao and Wenxuan Song and Jianhua Su and Kunpeng Guo and Qingchen Dong and Jinhai Huang and Wong, {Wai Yeung}",

year = "2016",

month = jan,

day = "1",

doi = "10.1016/j.tet.2016.01.056",

language = "English",

volume = "72",

pages = "1505--1510",

journal = "Tetrahedron",

issn = "0040-4020",

publisher = "Elsevier Ltd",

number = "11",

}

TY - JOUR

T1 - A novel host material with high thermal stability for green electrophosphorescent device

AU - Liang, Wenqing

AU - Gao, Zhixiang

AU - Song, Wenxuan

AU - Su, Jianhua

AU - Guo, Kunpeng

AU - Dong, Qingchen

AU - Huang, Jinhai

AU - Wong, Wai Yeung

PY - 2016/1/1

Y1 - 2016/1/1

N2 - A new bipolar host material based on triphenylamine, fluorene and 1,2-diphenyl-1H-benzo[d]imidazole moieties, N,N-diphenyl-4-(9-phenyl-2-(4-(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)-9H-fluoren-9-yl)aniline (DPPBIPFA), was designed and synthesized. The as-synthesized material was well characterized by1H and13C NMR spectroscopy, high-resolution mass spectrometry and thermogravimetric analysis, respectively. The photophysical and electrochemical properties of the material were also studied. The material exhibited an excellent thermal stability (Td= 475 °C), electrochemical stability and high triplet energy (2.68 eV). A green phosphorescent organic light-emitting diode (PhOLED) device based on DPPBIPFA as the host material and Ir(ppy)3as the dopant was fabricated, which displayed favorable electrophosphorescent properties with a turn-on voltage of 3.75 V, a maximum brightness of 1685 cd/m2and a maximum current efficiency of 4.26 cd/A.

AB - A new bipolar host material based on triphenylamine, fluorene and 1,2-diphenyl-1H-benzo[d]imidazole moieties, N,N-diphenyl-4-(9-phenyl-2-(4-(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)-9H-fluoren-9-yl)aniline (DPPBIPFA), was designed and synthesized. The as-synthesized material was well characterized by1H and13C NMR spectroscopy, high-resolution mass spectrometry and thermogravimetric analysis, respectively. The photophysical and electrochemical properties of the material were also studied. The material exhibited an excellent thermal stability (Td= 475 °C), electrochemical stability and high triplet energy (2.68 eV). A green phosphorescent organic light-emitting diode (PhOLED) device based on DPPBIPFA as the host material and Ir(ppy)3as the dopant was fabricated, which displayed favorable electrophosphorescent properties with a turn-on voltage of 3.75 V, a maximum brightness of 1685 cd/m2and a maximum current efficiency of 4.26 cd/A.

KW - Bipolar host material

KW - Doped OLED

KW - High thermal stability

KW - Phosphorescence

UR - http://www.scopus.com/inward/record.url?scp=84982158811&partnerID=8YFLogxK

U2 - 10.1016/j.tet.2016.01.056

DO - 10.1016/j.tet.2016.01.056

M3 - Journal article

SN - 0040-4020

VL - 72

SP - 1505

EP - 1510

JO - Tetrahedron

JF - Tetrahedron

IS - 11

ER -

A novel host material with high thermal stability for green electrophosphorescent device

Abstract

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this