Synthesis and luminescent properties of novel red-emitting M7Sn(PO4)6:Eu3+ (M = Sr, Ba) phosphors

Processing and Application of Ceramics

Jianmin Liu¹  Cong Li²  Weihui Jiang³  Guo Feng³  Quan Zhang³ 

[1] Department of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333000, China;Jiangxi Key Laboratory of Advanced Materials, Jingdezhen 333000, China;National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic Institute, Jingdezhen 333000, China;

关键词: strontium tin phosphate;    barium tin phosphate;    Eu3+ -doping;    red phosphors;    luminescence;   

DOI  :  10.2298/PAC1801008F

来源: DOAJ

【 摘 要 】

Novel Eu3+-activated M7Sn(PO4)6 (where M = Sr, Ba) red-emitting phosphors were synthesized via conventional solid-state reaction method at 1200 °C for 2 h. The luminescence properties of the prepared samples and quenching concentration of Sr7-xSn(PO4)6:xEu3+ and Ba7-xSn(PO4)6:xEu3+ were investigated. These phosphors can be efficiently excited by UV (395 nm) and visible blue (465 nm) light nicely matching the output wavelengths of the near-UV LEDs and InGaN blue LED chips and emit the red light. The critical concentrations of the Eu3+ activator were found to be 0.175 mol and 0.21 mol per formula unit for Sr7-xSn(PO4)6:xEu3+ and Ba7-xSn(PO4)6:xEu3+, respectively. The M7-xSn(PO4)6:xEu3+ (M = Sr, Ba) phosphor may be a good candidate for light-emitting diodes application.

【 授权许可】

Unknown