High thermal-stability benzocarbazole derivatives as bipolar host materials for phosphorescent organic light-emitting diodes

Yi Chen; Wenqing Liang; Wing Hong Choi; Jinhai Huang; Qingchen Dong; Fu Rong ZHU; Jianhua Su

doi:10.1016/j.dyepig.2015.07.040

High thermal-stability benzocarbazole derivatives as bipolar host materials for phosphorescent organic light-emitting diodes

Yi Chen, Wenqing Liang, Wing Hong Choi, Jinhai Huang^*, Qingchen Dong, Fu Rong ZHU, Jianhua Su

^*Corresponding author for this work

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

22 Citations (Scopus)

Abstract

Two novel host materials based on 5- and 9-substituted benzocarbazole have been developed for application in phosphorescent organic light-emitting diodes. Both host materials exhibit excellent thermal stability with high decomposition temperatures of ca.515 °C, while the 9-substituted benzocarbazole derivative exhibits a high glass transition temperature of 181 °C. Additionally, the electroluminescence characteristics of green phosphorescent organic light-emitting diodes made with two new host materials were also evaluated. The devices exhibited an electroluminescent emission peak at 528 nm with CIE coordinates of (0.31, 0.64) and possessed low turn-on voltages of <2.84 V.

Original language	English
Pages (from-to)	196-203
Number of pages	8
Journal	Dyes and Pigments
Volume	123
DOIs	https://doi.org/10.1016/j.dyepig.2015.07.040
Publication status	Published - 26 Aug 2015

Scopus Subject Areas

Chemical Engineering(all)
Process Chemistry and Technology

User-Defined Keywords

Benzocarbazole derivatives
Bipolar
Green phosphorescent OLEDs
High thermal stability
Host materials
Low turn-on voltages

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10.1016/j.dyepig.2015.07.040

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title = "High thermal-stability benzocarbazole derivatives as bipolar host materials for phosphorescent organic light-emitting diodes",

abstract = "Two novel host materials based on 5- and 9-substituted benzocarbazole have been developed for application in phosphorescent organic light-emitting diodes. Both host materials exhibit excellent thermal stability with high decomposition temperatures of ca.515 °C, while the 9-substituted benzocarbazole derivative exhibits a high glass transition temperature of 181 °C. Additionally, the electroluminescence characteristics of green phosphorescent organic light-emitting diodes made with two new host materials were also evaluated. The devices exhibited an electroluminescent emission peak at 528 nm with CIE coordinates of (0.31, 0.64) and possessed low turn-on voltages of <2.84 V.",

keywords = "Benzocarbazole derivatives, Bipolar, Green phosphorescent OLEDs, High thermal stability, Host materials, Low turn-on voltages",

author = "Yi Chen and Wenqing Liang and Choi, {Wing Hong} and Jinhai Huang and Qingchen Dong and ZHU, {Fu Rong} and Jianhua Su",

note = "Funding Information: Q. Dong thanks the financial support from the National Natural Science Foundation of China (Grant No.: 61307030 ), Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi (OIT), Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province, the Natural Science Foundation for Young Scientists of Shanxi Province, China (Grant No.: 2014021019-2 ), the Outstanding Young Scholars Cultivating Program, Research Project Supported by Shanxi Scholarship Council of China (Grant No.: 2014-02 ) and the Qualified Personal Foundation of Taiyuan University of Technology (Grant No.: 2013Y003 , tyut-rc201275a ).",

year = "2015",

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doi = "10.1016/j.dyepig.2015.07.040",

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journal = "Dyes and Pigments",

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T1 - High thermal-stability benzocarbazole derivatives as bipolar host materials for phosphorescent organic light-emitting diodes

AU - Chen, Yi

AU - Liang, Wenqing

AU - Choi, Wing Hong

AU - Huang, Jinhai

AU - Dong, Qingchen

AU - ZHU, Fu Rong

AU - Su, Jianhua

N1 - Funding Information: Q. Dong thanks the financial support from the National Natural Science Foundation of China (Grant No.: 61307030 ), Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi (OIT), Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province, the Natural Science Foundation for Young Scientists of Shanxi Province, China (Grant No.: 2014021019-2 ), the Outstanding Young Scholars Cultivating Program, Research Project Supported by Shanxi Scholarship Council of China (Grant No.: 2014-02 ) and the Qualified Personal Foundation of Taiyuan University of Technology (Grant No.: 2013Y003 , tyut-rc201275a ).

PY - 2015/8/26

Y1 - 2015/8/26

N2 - Two novel host materials based on 5- and 9-substituted benzocarbazole have been developed for application in phosphorescent organic light-emitting diodes. Both host materials exhibit excellent thermal stability with high decomposition temperatures of ca.515 °C, while the 9-substituted benzocarbazole derivative exhibits a high glass transition temperature of 181 °C. Additionally, the electroluminescence characteristics of green phosphorescent organic light-emitting diodes made with two new host materials were also evaluated. The devices exhibited an electroluminescent emission peak at 528 nm with CIE coordinates of (0.31, 0.64) and possessed low turn-on voltages of <2.84 V.

AB - Two novel host materials based on 5- and 9-substituted benzocarbazole have been developed for application in phosphorescent organic light-emitting diodes. Both host materials exhibit excellent thermal stability with high decomposition temperatures of ca.515 °C, while the 9-substituted benzocarbazole derivative exhibits a high glass transition temperature of 181 °C. Additionally, the electroluminescence characteristics of green phosphorescent organic light-emitting diodes made with two new host materials were also evaluated. The devices exhibited an electroluminescent emission peak at 528 nm with CIE coordinates of (0.31, 0.64) and possessed low turn-on voltages of <2.84 V.

KW - Benzocarbazole derivatives

KW - Bipolar

KW - Green phosphorescent OLEDs

KW - High thermal stability

KW - Host materials

KW - Low turn-on voltages

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SN - 0143-7208

VL - 123

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JO - Dyes and Pigments

JF - Dyes and Pigments

ER -

High thermal-stability benzocarbazole derivatives as bipolar host materials for phosphorescent organic light-emitting diodes

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