Diphenylphosphine oxide-based host materials for green phosphorescent organic light-emitting devices

Tingting Yang; Huixia Xu; Zhaoyang Xi; Kexiang Wang; Peng Tao; Peng Sun; Bo Zhao; Yanqin Miao; Hong Lian; Hua Wang; Bingshe Xu; Wai Yeung WONG

doi:10.1016/j.dyepig.2017.07.050

Diphenylphosphine oxide-based host materials for green phosphorescent organic light-emitting devices

Tingting Yang, Huixia Xu, Zhaoyang Xi, Kexiang Wang, Peng Tao, Peng Sun, Bo Zhao, Yanqin Miao, Hong Lian, Hua Wang, Bingshe Xu^*, Wai Yeung WONG

^*Corresponding author for this work

Department of Chemistry

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

5 Citations (Scopus)

Abstract

Two novel host materials based on the diphenylphosphine oxide (DPPO) and spirofluorene were designed and facilely synthesized by tuning the ratio of donor spirofluorene units and acceptor DPPO units from 1: 1 to 1: 2, i. e., (4-(9,9′-spirobi[fluoren]-2-yl)phenyl)diphenylphosphine oxide (SPDPPO) and (9,9′-spirobi[fluorene]-2,7-diylbis(4,1-phenylene))bis(diphenylphosphine oxide) (SBPBDPPO). Furthermore, 3,6-disubstituted spirofluorene possesses better thermal stability performance, for instance, higher glass transition temperatures (SPDPPO of 140 °C and SBPBDPPO of 172 °C). The phosphorescent organic light-emitting devices (PhOLEDs) were fabricated by doping tris(2-phenylpyridine)iridium (Ir(ppy)₃) in hosts as light-emitting layer. The PhOLEDs employed SPDPPO as host exhibited a low turn-on voltage of 3.0 V and the maximum current efficiency of 36.5 cd/A, power efficiency of 32.8 lm/W and a maximum external quantum efficiency (EQE) of 10.5%, respectively.

Original language	English
Pages (from-to)	582-588
Number of pages	7
Journal	Dyes and Pigments
Volume	146
DOIs	https://doi.org/10.1016/j.dyepig.2017.07.050
Publication status	Published - Nov 2017

Scopus Subject Areas

Chemical Engineering(all)
Process Chemistry and Technology

User-Defined Keywords

Diphenylphosphine oxide
Host material
PhOLED
Phosphorescence

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10.1016/j.dyepig.2017.07.050

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@article{4cb96c4f35904b2586abcf26d1d597c4,

title = "Diphenylphosphine oxide-based host materials for green phosphorescent organic light-emitting devices",

abstract = "Two novel host materials based on the diphenylphosphine oxide (DPPO) and spirofluorene were designed and facilely synthesized by tuning the ratio of donor spirofluorene units and acceptor DPPO units from 1: 1 to 1: 2, i. e., (4-(9,9′-spirobi[fluoren]-2-yl)phenyl)diphenylphosphine oxide (SPDPPO) and (9,9′-spirobi[fluorene]-2,7-diylbis(4,1-phenylene))bis(diphenylphosphine oxide) (SBPBDPPO). Furthermore, 3,6-disubstituted spirofluorene possesses better thermal stability performance, for instance, higher glass transition temperatures (SPDPPO of 140 °C and SBPBDPPO of 172 °C). The phosphorescent organic light-emitting devices (PhOLEDs) were fabricated by doping tris(2-phenylpyridine)iridium (Ir(ppy)3) in hosts as light-emitting layer. The PhOLEDs employed SPDPPO as host exhibited a low turn-on voltage of 3.0 V and the maximum current efficiency of 36.5 cd/A, power efficiency of 32.8 lm/W and a maximum external quantum efficiency (EQE) of 10.5%, respectively.",

keywords = "Diphenylphosphine oxide, Host material, PhOLED, Phosphorescence",

author = "Tingting Yang and Huixia Xu and Zhaoyang Xi and Kexiang Wang and Peng Tao and Peng Sun and Bo Zhao and Yanqin Miao and Hong Lian 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), the National Natural Scientific Foundation of China (61274056, 61307030, 61307029 and 61605138), Shanxi Provincial Key Innovative Research Team in Science and Technology (201513002-10), the Program for Changjiang Scholar and Innovation Research Team in University (IRT0972), the Natural Science Foundation of Shanxi Province (2015021070 and 201601D011031) and the Key Scientific and Technological Project of Shanxi Province (20120321019).",

year = "2017",

month = nov,

doi = "10.1016/j.dyepig.2017.07.050",

language = "English",

volume = "146",

pages = "582--588",

journal = "Dyes and Pigments",

issn = "0143-7208",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Diphenylphosphine oxide-based host materials for green phosphorescent organic light-emitting devices

AU - Yang, Tingting

AU - Xu, Huixia

AU - Xi, Zhaoyang

AU - Wang, Kexiang

AU - Tao, Peng

AU - Sun, Peng

AU - Zhao, Bo

AU - Miao, Yanqin

AU - Lian, Hong

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), the National Natural Scientific Foundation of China (61274056, 61307030, 61307029 and 61605138), Shanxi Provincial Key Innovative Research Team in Science and Technology (201513002-10), the Program for Changjiang Scholar and Innovation Research Team in University (IRT0972), the Natural Science Foundation of Shanxi Province (2015021070 and 201601D011031) and the Key Scientific and Technological Project of Shanxi Province (20120321019).

PY - 2017/11

Y1 - 2017/11

N2 - Two novel host materials based on the diphenylphosphine oxide (DPPO) and spirofluorene were designed and facilely synthesized by tuning the ratio of donor spirofluorene units and acceptor DPPO units from 1: 1 to 1: 2, i. e., (4-(9,9′-spirobi[fluoren]-2-yl)phenyl)diphenylphosphine oxide (SPDPPO) and (9,9′-spirobi[fluorene]-2,7-diylbis(4,1-phenylene))bis(diphenylphosphine oxide) (SBPBDPPO). Furthermore, 3,6-disubstituted spirofluorene possesses better thermal stability performance, for instance, higher glass transition temperatures (SPDPPO of 140 °C and SBPBDPPO of 172 °C). The phosphorescent organic light-emitting devices (PhOLEDs) were fabricated by doping tris(2-phenylpyridine)iridium (Ir(ppy)3) in hosts as light-emitting layer. The PhOLEDs employed SPDPPO as host exhibited a low turn-on voltage of 3.0 V and the maximum current efficiency of 36.5 cd/A, power efficiency of 32.8 lm/W and a maximum external quantum efficiency (EQE) of 10.5%, respectively.

AB - Two novel host materials based on the diphenylphosphine oxide (DPPO) and spirofluorene were designed and facilely synthesized by tuning the ratio of donor spirofluorene units and acceptor DPPO units from 1: 1 to 1: 2, i. e., (4-(9,9′-spirobi[fluoren]-2-yl)phenyl)diphenylphosphine oxide (SPDPPO) and (9,9′-spirobi[fluorene]-2,7-diylbis(4,1-phenylene))bis(diphenylphosphine oxide) (SBPBDPPO). Furthermore, 3,6-disubstituted spirofluorene possesses better thermal stability performance, for instance, higher glass transition temperatures (SPDPPO of 140 °C and SBPBDPPO of 172 °C). The phosphorescent organic light-emitting devices (PhOLEDs) were fabricated by doping tris(2-phenylpyridine)iridium (Ir(ppy)3) in hosts as light-emitting layer. The PhOLEDs employed SPDPPO as host exhibited a low turn-on voltage of 3.0 V and the maximum current efficiency of 36.5 cd/A, power efficiency of 32.8 lm/W and a maximum external quantum efficiency (EQE) of 10.5%, respectively.

KW - Diphenylphosphine oxide

KW - Host material

KW - PhOLED

KW - Phosphorescence

UR - http://www.scopus.com/inward/record.url?scp=85026455184&partnerID=8YFLogxK

U2 - 10.1016/j.dyepig.2017.07.050

DO - 10.1016/j.dyepig.2017.07.050

M3 - Journal article

AN - SCOPUS:85026455184

SN - 0143-7208

VL - 146

SP - 582

EP - 588

JO - Dyes and Pigments

JF - Dyes and Pigments

ER -

Diphenylphosphine oxide-based host materials for green phosphorescent organic light-emitting devices

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