摘要
用高温熔融法制备了Tm3+/Ho3+/Yb3+共掺碲酸盐玻璃,在TeO2-ZnO-La2O3玻璃组分的基础上,引入声子能量较低的PbO,研究了PbO对基质样品拉曼光谱以及Tm3+/Ho3+/Yb3+共掺样品上转换发光光谱的影响。结果表明,随着PbO含量的增加,样品的最大声子能量下降比较明显,同时样品的声子态密度也有减小趋势;在975nm波长激光二极管(LD)激励下,随着PbO含量的增加,Tm3+/Ho3+/Yb3+共掺样品上转换蓝光(480nm)、绿光(546nm)和红光(662nm)的发光强度都有明显增强,且PbO的引入对上转换蓝光发光强度的影响要大于其对绿光和红光的影响。
Tm3＋/Ho3＋/Yb3＋codoped tellurite glasses were prepared by conventional melt-quenching method. The heavy metal oxide PbO with lower phonon energy was introduced into the tellurite glass with a composition of TeO2-ZnO-La2O3. The effect of PbO content on the Raman spectra of the matrixes and the upconversion luminescence spectra of the Tm3＋/Ho3＋/Yb3＋codoped samples were studied. The results show that, with the increase of PbO content, the phonon energy of host glass decreased, and the phonon density also have decrescence tendency. The intensity of upconversion blue（480nm）, green（546nm） and red（662nm） of the Tm3＋/Ho3＋/Yb3＋codoped glasses were significantly enhanced at room temperature under 975nm LD excitation and the blue luminescence intensity of the impact is greater than the impact on the green and red.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2010年第A03期536-539,共4页
Journal of Functional Materials
基金
浙江省自然科学基金资助项目(Y107070)
宁波市自然科学基金资助项目(2010A610172)
宁波大学研究生创新基金资助项目(G10JA002)
宁波大学学生SRIP项目
宁波大学王宽诚幸福基金项目
