Crystal structure and luminescent properties of KSrPO4:Tb3+:Ce3+ phosphors prepared by using microwave assisted sintering

in International Symposium (oral presentation paper), 國際研討會(全文口頭發表)
標題Crystal structure and luminescent properties of KSrPO4:Tb3+:Ce3+ phosphors prepared by using microwave assisted sintering
出版類型國際研討會(全文口頭發表)
出版年度2012
AuthorsYu-Ming Peng, 彭昱銘, Yan-Kuin Su 蘇炎坤, & Ru-Yuan Yang 楊茹媛
出版日期Jul 4 2012 12:0
會議地點京都
其他編號0000
中文摘要

In this paper, KSr1-x-yPO4:xTb3+:yCe3+ (x=0.06) phosphors with different concentrations of Ce3+ ions (y= 0.01, 0.02, 0.03, 0.04) were successfully synthesized using microwave assisted sintering at 1200℃?under air atmosphere. The luminescent characteristics of
KSr1-x-yPO4:xTb3+:yCe3+ (x=0.06) phosphors were investigated and discussed. The XRD results showed that all the samples were matched with the standard patterns of KSrPO4, even though the doping concentrations of Ce3+ ions are increased. The photoluminescence measurement shows that the major emission peak was located at 542 nm, approximating a green luminescence, corresponds to 5D4→7F5 transition and the optimal concentration of Ce3+ which was 0.03 was observed. Moreover, the chromaticity (x, y) is (0.31, 0.53) and the tunable phenomenon was not observed as the concentration of Ce3+ was increased.

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