Highly efficient deep-blue OLEDs based on hybridized local and charge-transfer emitters bearing pyrene as the structural unit

Caixia Fu; Shuai Luo; Zhenzhen Li; Xin Ai; Zhenguo Pang; Chuan Li; Kuan Chen; Liang Zhou; Feng Li; Yan Huang; Zhiyun Lu

doi:10.1039/C9CC02355K

Highly efficient deep-blue OLEDs based on hybridized local and charge-transfer emitters bearing pyrene as the structural unit†

Caixia Fu,‡^a Shuai Luo,‡^a Zhenzhen Li,‡^b Xin Ai,

‡^c Zhenguo Pang,^a Chuan Li,^a Kuan Chen,^a Liang Zhou,

*^b Feng Li,

*^c Yan Huang

^a and Zhiyun Lu

*^a

Author affiliations

* Corresponding authors

^a Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
E-mail: luzhiyun@scu.edu.cn

^b State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
E-mail: zhoul@ciac.ac.cn

^c State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China
E-mail: lifeng01@jlu.edu.cn

Abstract

A new family of hybridized local and charge-transfer (HLCT) emitters bearing a pyrene structural unit has been developed. Deep-blue OLEDs based on them achieved high brightness over 10 000 cd m⁻², high maximum external quantum efficiency over 10.5%, and high maximum exciton utilization efficiency approaching 100%, with CIE coordinates of (0.152, 0.065).

Chemical Communications

Highly efficient deep-blue OLEDs based on hybridized local and charge-transfer emitters bearing pyrene as the structural unit†

Abstract

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Highly efficient deep-blue OLEDs based on hybridized local and charge-transfer emitters bearing pyrene as the structural unit

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