Rapid fabrication of a large-area 3D silica colloidal crystal thin film by a room temperature floating self-assembly method
Rapid fabrication of a large-area 3D silica colloidal crystal thin film by a room temperature floating self-assembly method
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DOI：
10.1016/j.matlet.2009.04.024
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发表时间：
2009-07-31
影响因子：
3
通讯作者：
Dong, Peng
中科院分区：
文献类型：
--
作者：
Wang, Aijun;Chen, Sheng-Li;Dong, Peng
我们证明了室温下结晶的胶体二氧化硅颗粒分散在乙醇和水的混合物中的胶体悬浮液的空气-液体界面上的玻璃基板上传播。将该方法与浸渍提拉技术相结合，发展了一种室温浮动自组装方法。应用这种方法，在10分钟内制备了面积为几平方厘米的三维二氧化硅胶体晶体膜，无需特殊设备或加热悬浮液。样品的SEM图像和正入射透射光谱表明，该方法制备的胶体晶体薄膜具有很高的结晶质量。(C)2009 Elsevier B. V.保留所有权利。
We demonstrate the room temperature crystallization of colloidal silica particles dispersed in a mixture of ethanol and water at the air-liquid interface of the colloidal suspension spread on a glass substrate. By combining this approach with the dip-drawing technique, a room temperature floating self-assembly method has been developed. Applying this method, a three-dimensional silica colloidal crystal film of several square centimeters in area has been fabricated within 10 min without special facilities or heating of the suspension. SEM images and the normal incidence transmission spectrum of the sample show that the colloidal crystal film fabricated by this method had very high crystalline quality. (C) 2009 Elsevier B.V. All rights reserved.