溶胶-凝胶燃烧合成法制备SmBO_3粉体及其性能研究

Synthesis and Characterization of SmBO_3 by Sol-Gel Combustion Method

利用溶胶-凝胶燃烧合成法,在750℃热处理2h的条件下制备了SmBO3粉体,颗粒大小在100nm左右。红外吸收光谱显示材料在500～1400cm-1波数范围内,存在较为集中的吸收峰。此外,由于Sm3+的6H5/2→6F9/2跃迁,使得SmBO3粉体在1.05～1.15μm的范围内反射率降低。因此,SmBO3粉体可能是一种性能较好的针对1.06和10.6μm激光的激光光防护材料和滤光功能材料。

Amorphous precursor was prepared by solgel combustion method, and then heat-treated at 750 ℃ for 2 h to obtain SmBO3 crystal. SEM micrograph showed that the average particle size was about 100 nm. Infrared absorption spectroscopy of SmBO3 showed that there were many absorption peaks in the range of 500 - 1500 cm^-1. The diffuse reflection spectrum of SmBO3 displayed that the reflectivity decreased at wavelength from 1.05 μm to 1. 15 μm. Therefore, SmBO3 might be a candidate of absorbent material used for light protection and light filter for laser at wavelength of 1.06 and 10.6 μm.