Carbon dots/ZnO quantum dots composite-based white phosphors for white light-emitting diodes

Wenjing Li; Min Wu; Hang Jiang; Longhui Yang; Chao Liu; Xiao Gong

doi:10.1039/d1cc06180a

Carbon dots/ZnO quantum dots composite-based white phosphors for white light-emitting diodes

Chem Commun (Camb). 2022 Feb 8;58(12):1910-1913. doi: 10.1039/d1cc06180a.

Authors

Wenjing Li¹, Min Wu², Hang Jiang¹, Longhui Yang¹, Chao Liu¹, Xiao Gong¹

Affiliations

¹ State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China. xgong@whut.edu.cn.
² Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China.

PMID: 35015000
DOI: 10.1039/d1cc06180a

Abstract

A facile synthetic approach to prepare environmentally friendly white fluorescent carbon dots (CDs)/ZnO quantum dots (QDs) composites through electrostatic force is described. This method can be used for fabrication of high-performance white light-emitting diodes (WLEDs). The fluorescence emission spectra of WLED devices covered a range from 425 nm to 750 nm. WLEDs had a CIE chromaticity coordinate of (0.30, 0.34) and a color temperature of 7093 K.