文献类型：期刊文献

英文题名：Harnessing Colloidal Crack Formation by Flow-Enabled Self-Assembly

作者：Li, Bo[1];Jiang, Beibei[1];Han, Wei[1];He, Ming[1];Li, Xiao[1];Wang, Wei[1];Hong, Suck Won[2];Byun, Myunghwan[3];Lin, Shaoliang[4];Lin, Zhiqun[1]

机构：[1]Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA;[2]Pusan Natl Univ, Dept Cognomechatron Engn, Dept Opt & Mech Engn, Busan 46241, South Korea;[3]Keimyung Univ, Dept Adv Mat Engn, Daegu 704701, South Korea;[4]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2017

卷号：56

期号：16

起止页码：4554

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20171003415491);WOS:【SCI-EXPANDED(收录号:WOS:000398154000027)】；

基金：We gratefully acknowledge funding support from NSF (CMMI-1562075). This research was also supported by the BK21 Plus program through the National Research Foundation of Korea funded by the Ministry of Education (grant No. 10Z20130000004 and by National Natural Science Foundation of China (51622301 and 51573046) and Shanghai City 1000 Talent Program.

语种：英文

外文关键词：colloidal particles; cracks; flow-enabled self-assembly; microchannel

摘要：Self-assembly of nanomaterials to yield a wide diversity of high-order structures, materials, and devices promises new opportunities for various technological applications. Herein, we report that crack formation can be effectively harnessed by elaborately restricting the drying of colloidal suspension using a flow-enabled self-assembly (FESA) strategy to yield large-area periodic cracks (i.e., microchannels) with tunable spacing. These uniform microchannels can be utilized as a template to guide the assembly of Au nanoparticles, forming intriguing nanoparticle threads. This strategy is simple and convenient. As such, it opens the possibility for large-scale manufacturing of crack-based or crack-derived assemblies and materials for use in optics, electronics, optoelectronics, photonics, magnetic device, nanotechnology, and biotechnology.