采用Stober溶胶-凝胶法制备了粒径约为150～220nm的单分散SiO2微球,利用DLS、SEM等对样品进行了表征,并探讨了TEOS用量、氨水用量及去离子水量等因素对合成SiO2微球的影响.采用垂直沉积技术研究了SiO2微球的自组装行为,在相对湿度为70%、温度为25℃的稳定环境下成功地制备了大面积具有六方密堆结构的三维SiO2光子晶体.
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