基于单层胶体晶体的功能性二维有序阵列研究进展  

Progress in functional 2D ordered arrays based on monolayer colloidal crystals

作　　者：李扬[1] 王文慧[1] 齐利民[1] 

机构地区：[1]北京大学化学与分子工程学院、北京分子科学国家实验室,北京100871

出　　处：《科学通报》2017年第6期508-518,共11页Chinese Science Bulletin

基　　金：国家重大科学研究计划(2013CB932601);国家自然科学基金(21473004)资助

摘　　要：二维有序微纳米结构阵列往往呈现出有序图案化结构所带来的新颖或增强的性质,由胶体球自组装而成的单层胶体晶体已被广泛应用于二维有序微纳米结构阵列的可控制备.这种方法具有简单、高效、适用范围广等诸多优点,因而愈来愈受到人们的关注.本文简要综述了近年来基于单层胶体晶体的功能性二维有序阵列的研究进展,主要包括二维光子晶体传感器、等离激元纳米阵列、太阳能转换器件、光学与光电器件、表面浸润与黏附以及生物医学材料等方面的最新成果.其中着重介绍了本课题组在Zn S纳米碗阵列、异质结构Ag_2S-Ag纳米碗阵列、异质结构TiO_2纳米棒@纳米碗阵列以及方解石单晶微透镜阵列等方面所取得的一些研究进展.Two-dimensionally （2D） ordered micro- and nanostructure arrays have attracted considerable attention because of their novel and/or enhanced properties arising from the patterned structures. Monolayer colloidal crystals （MCCs） assembled from colloidal spheres have been widely employed for the controllable fabrication of a variety of 2D ordered micro- and nanostructure arrays because this strategy has been demonstrated to be facile, inexpensive, efficient, and versatile. This review paper summarizes the recent progress in the functional 2D ordered arrays based on MCCs, including their applications in 2D photonic crystal sensors, plasmonic nanostructure arrays, solar energy conversion devices, optic and optoelectronic devices, surface wetting and adhesion, biomedical materials, etc. Particular attention is paid to our recent advances in the controlled fabrication and applications of ZnS nanobowl arrays, heterostructured Ag2S-Ag nanobowl arrays, heterostructured TiO2 nanorod@nanobowl arrays, and single crystal calcite microlens arrays. Firstly, large-area ZnS nanobowl arrays with a monolayer inverse opal structure were synthesized facilely by nanosphere lithography at solution surface through direct solution deposition. Owing to the 2D periodic structure of the hexagonally ordered nanobowl arrays and the high refractive index of ZnS, the obtained ZnS nanobowl arrays showed intensive structural colors and tunable photonic band-gap properties. The as-prepared ZnS nanobowl arrays can be used as a sensitive 2D photonic crystal sensor for fast detection of organic solvents and for visual oil sensing. After surface functionalization, the ZnS nanobowl arrays can be used as an effective 2D photonic crystal biosensor for sensitive detection of avidin molecules. Secondly, unique AgeS-Ag heterostructured nanobowl arrays consisting of AgeS nanonets lying on Ag nanobowl arrays were fabricated by two-step nanosphere lithography at the gas-liquid interface. The heterostructured nanobowl arrays exhibited effective resistance

关 键 词：单层胶体晶体 胶体球刻蚀法 二维有序阵列 纳米结构 微结构 

分 类 号：O648.1[理学—物理化学] TB383.1[理学—化学]