Effect of Eu3+ concentration on microstructure and photoluminescence of Sr2SiO4:Eu3+ phosphors prepared by microwave assisted sintering

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Effect of Eu3+ concentration on microstructure and photoluminescence of Sr2SiO4:Eu3+ phosphors prepared by microwave assisted sintering
出版類型SCI(Sciences Citation Index)
出版年度2012
AuthorsRu-Yuan Yang, 楊茹媛, Ru-Yuan Yang 陳皇宇, Shoou-Jinn Chang 張守進, & Yu-Kai Yang 楊育愷
開始頁780
頁數3
出版日期2012 / 3
其他編號0000
中文摘要

In this paper,effect of Eu3+ doping concentration on microstructure and photoluminescence of Sr2SiO4 phosphors was investigated.The Sr2-xSiO4:xEu3+ phosphors with x? 0.05, 0.1,0.2,0.3 were synthe- sized by microwave assisted sintering at 1200℃ for 60min in air.X-ray powder diffraction analysis confirmed the formation of pure Sr2SiO4 phase without second phase or phases of starting materials irrespective of the adding amount of Eu3+. From scanning electron microscopy image,it is found that with more Eu3+ ions introduced to Sr2SiO4, the shape of the particles is not much different from each other,but the particle size decreases significantly from 1to2 mm (when x?0.05) tolessthan500nm (when x?0.3).The emission spectrum was located obviously at 617nm as the excitation spectrum at lex?395 nm,and it had best emission intensity when x?0.1.

期刊名稱Journal of Luminescence
校址:912 屏東縣內埔鄉學府路1號 總機:886-8-7703202 傳真:886-8-7740165 系統開發統維護單位:國立屏東科技大學 電算中心 版權所有