@article{WANG2022, 
author = {Jiancheng WANG and Beiying ZHOU and Peng YANG and Yuye ZHAO and Lianjun WANG and Wan JIANG},
title = {Preparation and Luminescent Properties of ZnS:Mn Nanocrystals Embedded Glass},
year = {2022},
journal = {Journal of the Chinese Ceramic Society},
volume = {50},
number = {4},
pages = {983-990},
keywords = {nanocrystals, nanocrystals embedded glass, luminescence properties, fluorescence},
url = {https://www.sciopen.com/article/10.14062/j.issn.0454-5648.20211009},
doi = {10.14062/j.issn.0454-5648.20211009},
abstract = {ZnS:Mn nanocrystals embedded glass has attracted much attention due to the excellent luminescence performance in reddish orange range, high stability and non-toxicity. However, high temperature and long annealing time needed in a conventional melt-quenching method readily cause the volatilization, invalidation and agglomeration of nanocrystals, greatly reducing the luminescence performance. In this paper, ZnS:Mn nanocrystals embedded glass was prepared via spark plasma sintering (SPS) at 980 ℃ for 10 min, and the samples were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, electron spin resonance, photoluminescence and fluorescence lifetime analysis. The results show that rapidly sintering at a low temperature is beneficial to avoiding the oxidation of Mn2+ and driving Mn2+ into the ZnS lattice to realize the effective doping. Also, the generation of defect-related luminescence is suppressed by regulating the composition of ZnS nanocrystals, thereby further enhancing the Mn2+ transition luminescence. The ion-doped nanocrystals embedded glass prepared by SPS with the superior performance can be used as a promising solid light convertor in high-power LED devices.}
}