1,2,4-Triazole derivatives as host materials for blue and green phosphorescent organic light-emitting devices

Huixia Xu; Peng Sun; Kexiang Wang; Yanqin Miao; Tingting Yang; Hua Wang; Bingshe Xu; Wai Yeung Wong

doi:10.1016/j.tet.2016.06.005

1,2,4-Triazole derivatives as host materials for blue and green phosphorescent organic light-emitting devices

Huixia Xu^*, Peng Sun, Kexiang Wang, Yanqin Miao, Tingting Yang, Hua Wang, Bingshe Xu, Wai Yeung Wong

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

8 Citations (Scopus)

Abstract

A novel host material, namely 9-(6-(3-phenyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-4-yl)hexyl)-9H-carbazole (PPHCZ) was designed and synthesized by incorporating 1, 2, 4-triazol as the electron-withdrawing moiety and carbazole as electron-donating moiety using hexyl as bridge. The photophysical, electrochemical, thermal properties and performances in phosphorescent organic light-emitting devices (PhOLED) were thoroughly characterized. PPHCZ with a high triplet energy level (3.01 eV) exhibited an obvious intermolecular interaction in thin film. Green and blue PhOLEDs using fac-tris(2-phenylpyridine)iridium and iridium(III) bis(4,6-difluorophenyl)-pyridinato [Formula presented],C²′]picolinate as phosphorescent dopants have been fabricated.

Original language	English
Pages (from-to)	4408-4413
Number of pages	6
Journal	Tetrahedron
Volume	72
Issue number	29
DOIs	https://doi.org/10.1016/j.tet.2016.06.005
Publication status	Published - 21 Jul 2016

Scopus Subject Areas

Biochemistry
Drug Discovery
Organic Chemistry

User-Defined Keywords

Carbazole
Host materials
Light-emitting device

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10.1016/j.tet.2016.06.005

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@article{a640d04d0c0a4a4cb72bd7bfdfcf7eb3,

title = "1,2,4-Triazole derivatives as host materials for blue and green phosphorescent organic light-emitting devices",

abstract = "A novel host material, namely 9-(6-(3-phenyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-4-yl)hexyl)-9H-carbazole (PPHCZ) was designed and synthesized by incorporating 1, 2, 4-triazol as the electron-withdrawing moiety and carbazole as electron-donating moiety using hexyl as bridge. The photophysical, electrochemical, thermal properties and performances in phosphorescent organic light-emitting devices (PhOLED) were thoroughly characterized. PPHCZ with a high triplet energy level (3.01 eV) exhibited an obvious intermolecular interaction in thin film. Green and blue PhOLEDs using fac-tris(2-phenylpyridine)iridium and iridium(III) bis(4,6-difluorophenyl)-pyridinato [Formula presented],C2′]picolinate as phosphorescent dopants have been fabricated.",

keywords = "Carbazole, Host materials, Light-emitting device",

author = "Huixia Xu and Peng Sun and Kexiang Wang and Yanqin Miao and Tingting Yang and Hua Wang and Bingshe Xu and Wong, {Wai Yeung}",

note = "Funding Information: This work was financially supported by the International Science and Technology Cooperation Program of China ( 2012DFR50460 ); National Natural Science Foundation of China ( 21071108 , 60976018 , 61274056 and 61205179 ); Natural Science Foundation of Shanxi Province ( 2015021070 ); Program for Changjiang Scholar and Innovation Research Team in University ( IRT0972 ); and Shanxi Provincial Key Innovative Research Team in Science and Technology ( 201513002-10 ). Publisher copyright: {\textcopyright} 2016 Elsevier Ltd.",

year = "2016",

month = jul,

day = "21",

doi = "10.1016/j.tet.2016.06.005",

language = "English",

volume = "72",

pages = "4408--4413",

journal = "Tetrahedron",

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TY - JOUR

T1 - 1,2,4-Triazole derivatives as host materials for blue and green phosphorescent organic light-emitting devices

AU - Xu, Huixia

AU - Sun, Peng

AU - Wang, Kexiang

AU - Miao, Yanqin

AU - Yang, Tingting

AU - Wang, Hua

AU - Xu, Bingshe

AU - Wong, Wai Yeung

N1 - Funding Information: This work was financially supported by the International Science and Technology Cooperation Program of China ( 2012DFR50460 ); National Natural Science Foundation of China ( 21071108 , 60976018 , 61274056 and 61205179 ); Natural Science Foundation of Shanxi Province ( 2015021070 ); Program for Changjiang Scholar and Innovation Research Team in University ( IRT0972 ); and Shanxi Provincial Key Innovative Research Team in Science and Technology ( 201513002-10 ). Publisher copyright: © 2016 Elsevier Ltd.

PY - 2016/7/21

Y1 - 2016/7/21

N2 - A novel host material, namely 9-(6-(3-phenyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-4-yl)hexyl)-9H-carbazole (PPHCZ) was designed and synthesized by incorporating 1, 2, 4-triazol as the electron-withdrawing moiety and carbazole as electron-donating moiety using hexyl as bridge. The photophysical, electrochemical, thermal properties and performances in phosphorescent organic light-emitting devices (PhOLED) were thoroughly characterized. PPHCZ with a high triplet energy level (3.01 eV) exhibited an obvious intermolecular interaction in thin film. Green and blue PhOLEDs using fac-tris(2-phenylpyridine)iridium and iridium(III) bis(4,6-difluorophenyl)-pyridinato [Formula presented],C2′]picolinate as phosphorescent dopants have been fabricated.

AB - A novel host material, namely 9-(6-(3-phenyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-4-yl)hexyl)-9H-carbazole (PPHCZ) was designed and synthesized by incorporating 1, 2, 4-triazol as the electron-withdrawing moiety and carbazole as electron-donating moiety using hexyl as bridge. The photophysical, electrochemical, thermal properties and performances in phosphorescent organic light-emitting devices (PhOLED) were thoroughly characterized. PPHCZ with a high triplet energy level (3.01 eV) exhibited an obvious intermolecular interaction in thin film. Green and blue PhOLEDs using fac-tris(2-phenylpyridine)iridium and iridium(III) bis(4,6-difluorophenyl)-pyridinato [Formula presented],C2′]picolinate as phosphorescent dopants have been fabricated.

KW - Carbazole

KW - Host materials

KW - Light-emitting device

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U2 - 10.1016/j.tet.2016.06.005

DO - 10.1016/j.tet.2016.06.005

M3 - Journal article

AN - SCOPUS:84975745967

SN - 0040-4020

VL - 72

SP - 4408

EP - 4413

JO - Tetrahedron

JF - Tetrahedron

IS - 29

ER -

1,2,4-Triazole derivatives as host materials for blue and green phosphorescent organic light-emitting devices

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