Efficient green electroluminescence enabled by a cyano-modified double-boron-embedded multi-resonance framework

Zeyuan Ye; Chenghao Gui; Xiaoyu Guo; Shengbing Xiao; Zhuixing Xue; Dongyu Xu; Jingsheng Miao; Shaolong Gong; Xiaosong Cao; Chuluo Yang

doi:10.1039/D5CC07374J

Efficient green electroluminescence enabled by a cyano-modified double-boron-embedded multi-resonance framework

Zeyuan Ye,†^ab Chenghao Gui,†^a Xiaoyu Guo,^a Shengbing Xiao,^a Zhuixing Xue,^a Dongyu Xu,^a Jingsheng Miao,^a Shaolong Gong,

^b Xiaosong Cao

*^a and Chuluo Yang

^a

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* Corresponding authors

^a Shenzhen Key Laboratory of New Information Display and Storage Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, P. R. China
E-mail: xcao@szu.edu.cn

^b College of Chemistry and Molecular Sciences, Hubei Key Laboratory on Organic and Polymeric Optoelectronic Materials, Wuhan University, Wuhan 430072, P. R. China

Abstract

We report a design strategy for highly efficient, narrowband pure-organic green emitters that combines a contorted double-boron-embedded skeleton with peripheral cyano modification. Non-sensitized OLEDs incorporating this design deliver a maximum external quantum efficiency of 36.5% and a peak power efficiency of 197.7 lm W⁻¹ with low efficiency roll-off.

This article is part of the themed collection: New Developments in Photofunctional Materials and Transformations

Chemical Communications

Efficient green electroluminescence enabled by a cyano-modified double-boron-embedded multi-resonance framework

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Efficient green electroluminescence enabled by a cyano-modified double-boron-embedded multi-resonance framework

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