학술논문
Effects of the S???Zn Ratio on the Photoluminescence Properties of Color-Tunable ZnS:Mn Nanophosphors
Document Type
Article
Author
Source
Journal of the Electrochemical Society; April 2009, Vol. 156 Issue: 4 pK55-K58, 4p
Subject
Language
ISSN
00134651; 19457111
Abstract
In this study, color-tunable nanocrystalline phosphors of ZnS: ( ratio = 1, 0.85, 0.75, 0.65, 0.5) were synthesized at a low temperature using the solid-state reaction method. The emission spectra of ZnS: samples excited at exhibited two emission peaks. The blue-light emission is due to the donor-acceptor recombination in the ZnS host, and the orange-light emission is attributed to the transition of ions. The chromaticity coordinates of the phosphors changed from orange, near white, to blue with decreasing ratio. The local strain and the quantum efficiency of the phosphors are also investigated.