中文摘要：

将硝酸钇铕和较便宜的水溶性含硫燃烧剂溶于乙醇-水溶液，通过新的乙醇辅助燃烧法合成了一次粒径约20nm的硫氧化钇（Y2O2S：Eu）发光材料。研究结果表明：采用硫代乙酰胺作为燃烧剂时，燃烧反应产物为Y2O2S：Eu及微量的Y2O3：Eu。而采用硫脲作为燃烧剂，燃烧反应产物为Y2O3：Eu，Y2O2S：Eu和／或Y2O2SO4：Eu的混合物。利用Eu^3＋离子的。D0→Fi．跃迁导致的红色发光作为荧光探针，根据其在Y2O3（λem=610nm），Y2O2S（λem1=625nm，λem2=615nm），Y2O2SO4（λem1=613，λem2=615nm）基质中的光致发光光谱和X射线发光光谱位置和强度不同，来确定生成物中Y2O3：Eu，Y2O2S：Eu，Y2O2SO4：Eu物相的组成。

英文摘要：

Y2O2S ： Eu nano crystallines with primary particle size about 20nm were prepared by a modified ethanol-assisted combustion synthesis method using yttrium/europium nitrate and inexpensive sulfur-containing organic fuel in ethanol-aqueous solution. It is shown that single Y2O2S ： Eu nano crystallines are obtained using thioacetamide as organic fuel,and a mixture of Y2O3 ： Eu,Y2O2S ： Eu and/or Y2O2SO4 ： Eu are acquired using thiourea as fuel. The spectrum profile in red emission region of Eu^3＋ due to the ^5 D0→7 Fi transition is adopted as a spectroscopic probe to detect the phase of Y2O3 （λem = 610nm）, Y2O2S （λem1= 625nm,λem2= 615nm）, and Y2O2SO4 （λem=613 and 615nm） in the as-received samples according their peak positions and relative intensities of photoluminescence and X ray luminescence emission spectra.