| 胶体二氧化硅光子晶体自组装机理及缺陷分析 |
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| 引用本文： | 赵晓峰,张辉,唐清.胶体二氧化硅光子晶体自组装机理及缺陷分析[J].过程工程学报,2002,2(5):431-434. |
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| 作者姓名： | 赵晓峰 张辉 唐清 |
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| 作者单位： | 1. 中国科学院过程工程研究所,北京,100080
2. 中国科学院过程工程研究所,北京,100080;北京科技大学,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目(编号:59974026) |
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| 摘 要： | 通过改进Stober方法，严格控制反应条件合成了平均直径为238 nm、分布偏差约为5.7%的球形二氧化硅单分散颗粒. 首次利用乙醇作为沉降介质，在重力场作用下制备了二氧化硅光子晶体. 提出了自组装方法生长光子晶体的机理，并对缺陷形成原因进行了初步分析.
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| 关 键 词： | 光子晶体 单分散 二氧化硅 生长机理 缺陷 |
| 文章编号： | 1009-606(2002)05-0431-04 |
| 修稿时间： | 2002年1月29日 |
Self-assembly Mechanism and Defect Analysis of Colloidal Silica Photonic Crystals |
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| ZHAO Xiao-feng,ZHANG Hui,TANG Qing.Self-assembly Mechanism and Defect Analysis of Colloidal Silica Photonic Crystals[J].Chinese Journal of Process Engineering,2002,2(5):431-434. |
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| Authors: | ZHAO Xiao-feng ZHANG Hui TANG Qing |
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| Affiliation: | ZHAO Xiao-feng1,ZHANG Hui1,2,TANG Qing1 |
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| Abstract: | Colloidal silica photonic crystals were prepared by using ethanol as medium. Nanospheres with a mean diameter of 238 nm and standard deviation 5.7% were obtained under strictly controlled conditions by using the improved Stober method. In this method, ethanol was proved a better medium than water and the prepared photonic crystals had fewer defects. The diffraction to incident infrared light obeyed the Bragg equation. The formation mechanism and defect formation of colloidal photonic crystals were also discussed. |
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| Keywords: | photonic crystal monodispersed silica growth mechanism defect |
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