The results indicated that, with increasing PbO content in the glass, the energy transfer between Yb 3+: 2F- 5/2 and Tm 3+: 3H-4 was intensified, and upconversion luminescence intensity of blue emission was enhanced significantly.

• 结果表明；随着PbO加入；Yb3+:2F5/2与Tm3+:3H4间的能量转移不断增加；上转换蓝光的发光强度明显增强.