不同激发波长下Ce3＋-Tb3＋-Sm3＋共掺白光玻璃的发光性能

Luminescence property of Ce^(3+)-Tb^(3+)-Sm^(3+) co-doped borosilicate glass under various ultraviolet excitations

本文采用高温熔融技术制备了Ce3+-Tb3+-Sm3+三种离子共掺杂的硼硅酸盐透明玻璃.测试了紫外LED激发下Ce3+离子、Tb3+离子及Sm3+离子单掺与共掺样品的激发光谱及荧光光谱,通过对单掺及共掺样品荧光寿命的测试研究了Ce3+离子、Tb3+离子及Sm3+离子在玻璃基质中的能量传递机理.通过调整紫外LED灯的激发波长调整发光样品所发射光谱的色度坐标、显色指数及色温,得到适合人类生活、学习、工作的白光发光.

Cea＋-Tb3＋-Sm3＋ co-doped white light emitting borosilicate glasses were fabricated by high-temperature melting technique. In this paper, the excitation spectra and the emission spectra of Ce3＋, TD3＋ and Sm3＋ ions-doped and co- doped samples were measured and the energy transfer mechanism of Ce3＋, Tb3＋, and Sm3＋ were studied by analyzing the fluorescence lifetime of single-doped and co-doped samples. The color coordinate, rendering index, and color temperature of the emission spectra can be adjusted by changing the excitation wavelength of ultraviolet LED. Finally, we have obtained the white light which fits for life, study, and work.