By solid-state reaction and doping, a series of red-emitting phosphors Na<sub>x</sub>Y<sub>0.92–x/3</sub>(MoO<sub>4</sub>)<sub>y</sub>(WO<sub>4</sub>)<sub>1–y</sub>O<sub>0.5</sub> : zEu<sup>3+</sup> have been synthesized. Through optimization of the process conditions and photoluminescent analysis, one type of red emission is obtained that matches nicely with ultraviolet light-emitting diode (UV-LED) chips.
Vol. 6, Iss. 1 Virtual Journal for Biomedical Optics
Fa-Bin Cao, LI Liao-Sha, Yan-Wen Tian, Xing-Rong Wu, Yong-Jie Chen, and Lin-Jiu Xiao, "Preparation of Eu3+–Y3+ Coactivating Naþ Based Red-Emitting Luminous Materials for Light-Emitting Diodes and Investigation of Its Characteristics," Appl. Spectrosc. 64, 1298-1300 (2010)