Sky-blue nondoped OLEDs based on new AIEgens: ultrahigh brightness, remarkable efficiency and low efficiency roll-off

Long Chen; Gengwei Lin; Huiren Peng; Siyang Ding; Wenwen Luo; Rongrong Hu; Shuming Chen; Fei Huang; Anjun Qin; Zujin Zhao; Ben Zhong Tang

doi:10.1039/C6QM00075D

Sky-blue nondoped OLEDs based on new AIEgens: ultrahigh brightness, remarkable efficiency and low efficiency roll-off†

Long Chen,‡^a Gengwei Lin,‡^a Huiren Peng,^b Siyang Ding,^a Wenwen Luo,^a Rongrong Hu,^a Shuming Chen,*^b Fei Huang,^a Anjun Qin,^a Zujin Zhao*^a and Ben Zhong Tang*^ac

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* Corresponding authors

^a State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
E-mail: mszjzhao@scut.edu.cn

^b Department of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen, Guangdong 518055, China
E-mail: chen.sm@sustc.edu.cn

^c Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
E-mail: tangbenz@ust.hk

Abstract

Two novel AIEgens decorated with fluorenyl and dimesitylboryl groups are prepared. They show high thermal stability and excellent solid-state photoluminescence efficiency. Sky-blue nondoped OLEDs are achieved based on them, affording remarkable electroluminescence efficiencies (12.2 cd A⁻¹ and 5.3%), ultrahigh brightness (92 810 cd m⁻²) and low efficiency roll-off (11.0 cd A⁻¹ at 1000 cd m⁻²).

Materials Chemistry Frontiers

Sky-blue nondoped OLEDs based on new AIEgens: ultrahigh brightness, remarkable efficiency and low efficiency roll-off†

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Sky-blue nondoped OLEDs based on new AIEgens: ultrahigh brightness, remarkable efficiency and low efficiency roll-off

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