Achieving high-efficiency purely organic room-temperature phosphorescence materials by boronic ester substitution of phenoxathiine

Mengke Li; Xinyi Cai; Zhenyang Qiao; Kunkun Liu; Wentao Xie; Liangying Wang; Nan Zheng; Shi-Jian Su

doi:10.1039/c9cc02648g

Achieving high-efficiency purely organic room-temperature phosphorescence materials by boronic ester substitution of phenoxathiine

Chem Commun (Camb). 2019 Jun 25;55(50):7215-7218. doi: 10.1039/c9cc02648g. Epub 2019 Jun 5.

Authors

Mengke Li¹, Xinyi Cai¹, Zhenyang Qiao¹, Kunkun Liu², Wentao Xie¹, Liangying Wang¹, Nan Zheng¹, Shi-Jian Su¹

Affiliations

¹ State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China. mssjsu@scut.edu.cn.
² State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China. mssjsu@scut.edu.cn and South China Institute of Collaborative Innovation, Dongguan 523808, China.

PMID: 31165812
DOI: 10.1039/c9cc02648g

Abstract

The effect of boronic ester substitution on the room-temperature phosphorescence properties of phenoxathiine-based derivatives was thoroughly investigated. A significantly improved phosphorescence quantum efficiency of up to 20% in the crystalline state was achieved by delicate molecular manipulation for both enhanced spin-orbital coupling and compact intermolecular packing.