Controlling optoelectronic properties of carbazole–phosphine oxide hosts by short-axis substitution for low-voltage-driving PHOLEDs

Weibo Yang; Zhensong Zhang; Chunmiao Han; Zhen Zhang; Hui Xu; Pengfei Yan; Yi Zhao; Shiyong Liu

doi:10.1039/C3CC00133D

Controlling optoelectronic properties of carbazole–phosphine oxide hosts by short-axis substitution for low-voltage-driving PHOLEDs

Weibo Yang,^a Zhensong Zhang,^b Chunmiao Han,^a Zhen Zhang,^a Hui Xu,*^a Pengfei Yan,^a Yi Zhao*^b and Shiyong Liu^b

* Corresponding authors

^a Key Laboratory of Functional Inorganic Material Chemistry, School of Chemistry and Materials, Heilongjiang University, Ministry of Education, Harbin 150080, P. R. China
E-mail: hxu@hlju.edu.cn
Fax: +86 451 86608042

^b State Key Laboratory on Integrated Optoelectronics, College of Electronics Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
E-mail: zhao_yi@jlu.edu.cn

Abstract

Preserved high first triplet energy levels and improved electrical properties of two donor–acceptor type carbazole–phosphine oxide hosts were achieved through short-axis substitution to realize efficient PHOLEDs with extremely low driving voltages of 2.6 V for onset and <3.2 V at 100 cd m⁻².

Supplementary files

Publication details

The article was received on 07 Jan 2013, accepted on 19 Feb 2013 and first published on 20 Feb 2013

Article type: Communication

DOI: 10.1039/C3CC00133D

Citation: Chem. Commun., 2013,49, 2822-2824

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Controlling optoelectronic properties of carbazole–phosphine oxide hosts by short-axis substitution for low-voltage-driving PHOLEDs

W. Yang, Z. Zhang, C. Han, Z. Zhang, H. Xu, P. Yan, Y. Zhao and S. Liu, Chem. Commun., 2013, 49, 2822
DOI: 10.1039/C3CC00133D
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Chemical Communications

Controlling optoelectronic properties of carbazole–phosphine oxide hosts by short-axis substitution for low-voltage-driving PHOLEDs

Abstract

Supplementary files

Publication details

Controlling optoelectronic properties of carbazole–phosphine oxide hosts by short-axis substitution for low-voltage-driving PHOLEDs

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