Development of liquid-phase synthesis methods of opto-functionalized bulk silica glasses

石英玻璃是一种重要的光学材料，具有宽光谱范围内的透明性、高机械强度和良好的化学稳定性。在液相法制备石英玻璃过程中，由于干燥和烧结过程中容易发生断裂，因此人们开发了各种具有光功能的块体石英玻璃，如低SiOH含量的石英玻璃、掺LaF_3纳米晶的石英玻璃、高浓度稀土离子掺杂的石英玻璃等。此外，一些新的硅基材料，包括聚倍半硅氧烷液体和紫外透明的有机-无机杂化材料的制备，已被证明。

Liquid-phase synthesis methods of silica glass, which is an important optical material because of the excellent transparency over wide spectral range, high mechanical strength, and good chemical stability, have been developed. With overcoming the fracture during drying and sintering, which has been a long-standing problem in liquid-phase synthesis of silica glasses, various opto-functionalized bulk silica glasses, such as silica glasses with low SiOH concentrations, silica glasses doped with LaF_3 nanocrystals, and silica glasses doped with rare-earth ions at high concentrations, have been developed. Furthermore, fabrication of some new silica-based materials, including polysilsesquioxane liquids and ultraviolet-transparent organic-inorganic hybrids, have been demonstrated.