采用熔融淬冷法和热处理工艺制备了系列掺Ho3+的透明GeS2-In2S3-Sb2S3硫系玻璃陶瓷。测试了Ho3+掺杂的基质玻璃和玻璃陶瓷样品的密度、显微硬度、红外光谱以及在900nm激光泵浦下的近红外及中红外荧光光谱。结果表明:热处理后样品析出的晶相为In2S3和Sb2S3颗粒的混合体,晶粒尺寸限制在~100nm以内;而原本掺杂在玻璃基质中的Ho3+富集在析出的In2S3晶体周围引起了Ho3+局部浓度的增加。因此,热处理后玻璃陶瓷样品的近红外和中红外荧光强度增加。
Ho3+ -doped chalcogenide glass-ceramics in GeS2-In2S3-Sb2S3 system were prepared by appropriate heat treatment, and their properties including density, microhardness, infrared transmittance spectrum and fluorescence in the near- and mid-infrared region under 900 nm excitation, were measured. The results showed that the crystalline phases in the obtained glass-ceramics were mixture of In2S3 and Sb/S3 with the grain sizes about 100 nm. The Ho3+ , in the host glass network, was aggregated around the In2S3 grains after crystallization processing, which caused the increase of local concentration of Ho3+. Therefore, the intensities of near- and mid-infrared luminescence in the samples were enhanced.