【摘要】 采用熔融-晶化法在Zn O-Al₂O₃-Si O₂系玻璃陶瓷的基础上,用Ge O₂取代部分Si O₂成功制备出Er³⁺/Yb³⁺共掺Zn O-Al₂O₃-Ge O₂-Si O₂系玻璃陶瓷,并通过对样品的硬度及上转换荧光测试分析确定了Ge O₂的最佳取代量为7.5wt%。研究发现在980 nm波长光的激发下,样品产生了绿色（524 nm、546 nm）和红色（659 nm）上转换发光,且当Er³⁺/Yb³⁺掺杂比为2.5∶6.5时样品上转换荧光强度最强。更多还原

【Abstract】 The Er³⁺/Yb³⁺ co-doped ZnO-Al₂O₃-GeO₂-SiO₂ glass ceramics were successfully prepared by melt-crystallization technique on the basis of ZnO-Al₂ O₃-SiO₂ glass ceramics and GeO₂ instead of Si O₂.Subsequently,the influence of GeO₂ instead of SiO₂ on the hardness and up-conversion luminescence properties of glass ceramic samples is discussed here. Ultimately,when the quantity of GeO₂ instead of SiO₂ was 7. 5 wt%,comprehensive performance of the glass ceramic samples were optimum. Under the980 nm pump light excitation,a green emission（ 524 nm,546 nm） and a red emission（ 659 nm） are observed. The effect of different doped ratios of Er³⁺/Yb³⁺ on the up-conversion luminescence of samples was studied. The experimental results indicated that the luminescence intensity reaches a maximum when the doped ratios of Er³⁺/Yb³⁺ is 2. 5∶ 6. 5.更多还原