基于锑磷酸盐玻璃宽带发射的钐离子荧光色彩调谐  

Fluorescence Adjustment of Sm^(3+) on Broadband Emission in Antimony Phosphate Glasses

作　　者：肖鹏[1] 张伟针 张晶晶[1] 王志强[1] 林海[1] 

机构地区：[1]大连工业大学纺织与材料工程学院,辽宁大连116034

出　　处：《硅酸盐学报》2016年第6期841-846,共6页Journal of The Chinese Ceramic Society

基　　金：辽宁省教育厅科学技术研究项目(L2014226);国家自然科学基金(61275057)资助

摘　　要：利用高温熔融法制备不同Sm^(^(3+))掺杂量的锑磷酸盐发光玻璃(SP玻璃)。结果表明:玻璃中未析出晶态物质,玻璃转变温度为430℃。在254 nm紫外光激发下,SP玻璃发出覆盖近紫外/蓝/绿/黄光谱区域Sb^(3+)宽带发射,最大半高宽达150 nm。当Sm_2O_3含量从0增加到2.0%(质量分数)时,Sb^(3+)宽发射带强度依次减弱,同时归属Sm^(3+)的稀土特征荧光发射强度依次增强,发光色彩从蓝白色变为暖白色。在不同的激发条件下,Sm^(3+)掺杂的SP玻璃展现出不同的发射行为,其中在240和315 nm波长激发下,玻璃的荧光色坐标接近标准白光点。200~320 nm紫外光可有效激发Sm^(3+)掺杂的SP玻璃,获得高强度可见荧光。通过选择合适激发波长光源和优选Sm^(3+)掺杂量,有望在Sm^(3+)掺杂SP玻璃中获得强的多色荧光发射,实现理想白光荧光。A series of Sm3＋ doped antimony phosphate luminescent glasses （SP glasses） were prepared via a melt-quenching method. The results show that no crystalline substance is precipitated in the glasses and the glass transition temperature is 430 ~C. Under 254 nm ultraviolet （UV） radiation, a broad emission of Sb3＋ in SP glasses covers near-UV, blue, green and yellow spectral regions and the full width at half maximum （FWHM） is 150 nm. The intensity of broad emission from Sb3＋ decreases while the intensity of the characteristic emissions from Sm3~ increases with increasing the Sm203 concentration from 0 to 2.0% （in mass fraction）, resulting in that the luminescence color changes from blue-white to warm-white. Under different excitation conditions, Sm3＋ doped SP glasses exhibit different fluorescences and the CIE chromaticity coordinates are closed to the standard pure-white values under 240 and 315 nm radiations. The excitation spectra indicate that Sm3＋ doped SP glasses can be effectively excited under 200-320 nm UV radiation, obtaining a high-intensity visible fluorescence. An intense multi-color fluorescence can be achieved at a suitable excitation wavelength and an optimized content of Sm3＋, which favors the realization of ideal white irradiancy.

关 键 词：锑磷酸盐玻璃 多色荧光 宽带发射 钐离子 荧光调谐 

分 类 号：O433[机械工程—光学工程]