摘要：采用微乳液法合成SrxCa0.99-xEu0.01WO4(x=0.01,0.02,0.05,0.08,0.10,0.20,0.50,0.80,0.99)固溶體.使用TEM、XRD和Raman光譜表征固溶體的形貌和結(jié)構(gòu),采用熒光分光光度計(jì)測(cè)試固溶體的光致發(fā)光譜.實(shí)驗(yàn)結(jié)果表明:當(dāng)Sr2+摻雜摩爾分?jǐn)?shù)從0.05增大到0.99時(shí),固溶體開(kāi)始由CaWO4逐步轉(zhuǎn)變?yōu)镾rWO4,其最大聲子能量從912cm-1單調(diào)增長(zhǎng)到922cm-1.通過(guò)聲子能量可調(diào)節(jié)摻雜Eu3+的非輻射躍遷速率,進(jìn)而在直接激發(fā)和基質(zhì)敏化條件下調(diào)控Eu3+的發(fā)光特性.Sr2+在SrxCa0.99-xEu0.01WO4固溶體中最佳的摻雜摩爾分?jǐn)?shù)為0.05,較低的聲子能量對(duì)SrxCa0.99-xEu0.01WO4固溶體在紫外激發(fā)下成為高效發(fā)光的熒光粉具有積極作用.