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中文摘要：
利用重力场下的自组装，将单分散的ZnO胶体球悬浮液自组装为排列有序的结构。通过SEM、TEM对制一得的有序结构进行了表征。结果表明，这种方法可得到直径为50～800nm的ZnO胶体球。所得样品的透射谱在200～1100nm范围内出现一强烈的衰减峰（带隙中心波长为五），且λc随ZnO胶体球粒径的减小向短波长方向移动（蓝移），λc的位置还随前处理温度的降低而蓝移。
英文摘要：
The ordered structures of ZnO were prepared by self-assembly under the gravitation field, which were characterized by the scanning electron microscope, X-ray diffraction and ultra-violet spectrometer. The results show that the ordered structures with the size of colloidal spheres ranging from 50 nm to 800 nm are carried out. The ordered structures exhibit a clear band gap in optical transmission experiments. With decrease of ZnO particles size and the pre-treatment temperature, the positions of the stop-band are shifted to the shorter wavelength, which is called blue-shift.
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