摘要
采用等体积快速混合法制备了不同粒径的单分散SiO2微球，通过重力垂直沉降自组装形成了蛋白石模板，研究了热处理温度对蛋白石晶体模板形貌、结构与光学性能的影响。SEM，TG-DSC，UV—Vis等分析表明：热处理可提高组装微球的粘合性与模板的机械强度；SiO2胶体模板煅烧温度在700～800℃较为合适；热处理能够改变蛋白石晶体光子带隙的位置，随着煅烧温度的升高，带隙发生蓝移并且带隙逐渐变窄。
The monodispersed SiO2 microspheres were synthesized by reactant mixed equally. The colloid crystal templates were assemblied by vertical sedimentation method in ethanol at certain temperatures, and the effects of the heat treatment temperature on the morphology and the properties of opal colloid crystals were investigated. SEM, TG-DSC results indicate SiO2 colloid templates should be heat treated at 700-800 ℃, enhancing the conglutination and mechanistic intensity of opal templates. UVVis analysis result indicates that the heat treatment process can remove the photonic band gap location of the opal colloid crystals, and with the heat treatment temperature increasing gradually, blue shift occurs and the gap narrows.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2008年第9期1495-1498,共4页
High Power Laser and Particle Beams
基金
四川省教育厅青年基金项目(2006B050)
四川省科技厅应用基础项目(2007J13-021)
西南科技大学"十一五"重点科技项目(06ZX2107)
西南科技大学青年基金项目(06ZX3178)
