| 蒸发诱导自组装法制备多孔二氧化硅光学薄膜 |
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| 引用本文： | 姚兰芳,沈军,汪国庆,吴广明,吴兆丰,王珏. 蒸发诱导自组装法制备多孔二氧化硅光学薄膜[J]. 光学仪器, 2004, 26(2): 132-135 |
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| 作者姓名： | 姚兰芳 沈军 汪国庆 吴广明 吴兆丰 王珏 |
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| 作者单位： | 同济大学,波耳固体物理研究所,上海,200092;上海理工大学,理学院,上海,200093;同济大学,波耳固体物理研究所,上海,200092 |
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| 摘 要： | 报道采用溶胶—凝胶技术、蒸发诱导自组装法,通过酸/酸二步法控制实验条件,实验中采用表面活性剂十六烷基三甲基溴化氨(CTAB)为模板剂,正硅酸乙酯为硅源,以及二次去离子水,盐酸为催化剂等原料制备前驱体溶胶。加入不同量的1,3,5-三甲基苯(TMB)辅助剂来调整膜的孔径。简单提拉迅速蒸发溶剂制备多孔二氧化硅光学薄膜,利用红外光谱对样品进行结构分析,采用UV-VIS-NIR分光光度计测量了薄膜的透过光谱,原子力显微镜(AFM)观察发现多孔薄膜的表面形貌具有明显的多孔结构、表面光滑、均匀;结果表明所制备的薄膜有好的光学性能、机械性能。
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| 关 键 词： | 多孔光学薄膜 二氧化硅 蒸发诱导自组装 表面活性剂 |
| 文章编号： | 1005-5630(2004)02-0132-04 |
| 修稿时间： | 2003-11-30 |
Preparation of porous silica optical thin films by evaporation-induced self-assembly process |
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| YAO Lan-fang~. Preparation of porous silica optical thin films by evaporation-induced self-assembly process[J]. Optical Instruments, 2004, 26(2): 132-135 |
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| Authors: | YAO Lan-fang~ |
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| Affiliation: | YAO Lan-fang~ |
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| Abstract: | A precursor sol containing tetraethoxysilane (TEOS), surfactant cetyltrimetylammonium bromide(CTAB)-templated and acid/ acid catalyst was prepared by sol-gel and evaporation-induced self-assembly process. Different pore size were adjusted by adding 1,3,5-trimethylbenzene(TMB) as assistant agent. Depositing the precursor sol on a substrate wherein evaporation of solvent and water causes the formation of porous silica optical thin films on the substrate surface. FTIR, AFM and UV-VIS-NIR spectrophotometry are used to measure the films. The results showed that the films have good optical and mechanical properties. |
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| Keywords: | porous optical thin films silica evaporation-induced self-assembly surfactant |
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