【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.更多还原

【Abstract】 The upconversion luminescence spectra of Tm 3+ /Yb 3+ -codoped 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%=0.1mol%, and then decrease. The obtained results are conducive to increase upconversion luminescence efficiency of Tm 3+ .更多还原