摘要
利用胶体颗粒悬浊液的自组织生长技术制备了两种二氧化硅胶体晶体．透射光谱表明：所制备的胶体晶体的光子带隙位于近红外波段，带隙的位置随胶体晶体中胶粒的尺寸而变化；且放置时间延长，带隙将发生蓝移．
Two kinds of silica colloidal crystals were fabricated by the self-assembly of monodisperse silica particles. Optical microscope images show that the samples are polycrystalline. Transmission measurements show the existence of photonic band gaps, and the center of which is strongly determined by the size of the colloidal spheres. With aging-time increasing the photonic band gap shifts considerably towards shorter wavelength.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第1期159-162,共4页
Journal of Inorganic Materials
基金
国家攀登计划(07-01)
国家自然科学基金课题(59932040-2)
