摘要
研究了Tm3+/Yb3+共掺氧卤碲酸盐玻璃的上转换发光光谱,分析了Tm2O3含量对Tm3+/Yb3+共掺氧卤碲酸盐玻璃上转换发光的影响机理.结果表明:在Tm3+/Yb3+共掺氧卤碲酸盐玻璃的上转换发光中,Tm3+存在较强的浓度猝灭效应.随Tm2O3含量增加,Tm3+的上转换蓝光和红光强度先增加,后降低,在0.1mol%Tm2O3达到最大.该结果有助于进一步提高Tm3+的上转换发光效率.
The upconversion luminescence spectra of Tm^3＋/Yb^3＋ -eodoped oxyhalide tellurite glasses have been investigated, and the action mechanisms of Tm2O3 content on upconversion luminescence of Tm^3＋/Yb^3＋ -codoped oxyhalide tellurite glasses were analyzed. The results showed that there exists concentration quenching of Tm^3＋ in oxyhalide tellurite glasses. With increasing Tm2O3 content, upconversion blue and red emission intensities of Tm^3＋ first increase, reach its maximum at Tm2O3 % = 0.1 mol %, and then decrease. The obtained results are conducive to increase upconversion luminescence efficiency of Tm^3＋
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第5期2714-2718,共5页
Acta Physica Sinica
基金
国家自然科学基金(批准号:60508014和50502030)
浙江省自然科学基金人才专项(批准号:R406007)
浙江省教育厅重点项目(批准号:20050359)资助的课题~~
关键词
氧卤碲酸盐玻璃
上转换光谱
发光机理
oxyhalide tellurite glasses, upconversion spectroscopy, luminescence mechanism
