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美國化學會Langmuir雜志最新牛文:磁力控制膠體粒子自組裝
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美國化學會Langmuir雜志最新牛文:磁力控制膠體粒子自組裝 以磁場為手段,控制磁性微納米粒子的自組裝,可行形成三角形、蜂窩狀等規(guī)則晶格圖案。 Magnetic Assembly and Annealing of Colloidal Lattices and Superlattices Pietro Tierno * Langmuir, Article ASAP DOI: 10.1021/la501273b Publication Date (Web): June 18, 2014 Copyright © 2014 American Chemical Society http://pubs.acs.org/doi/abs/10.1021%2Fla501273b The ability to assemble mesoscopic colloidal lattices above a surface is important for fundamental studies related with nucleation and crystallization but also for a variety of technological applications in photonics and microengineering. Current techniques based on particle sedimentation above a lithographic template are limited by a slow deposition process and by the use of static templates, which make difficult to implement fast annealing procedures. Here it is demonstrated a method to realize and anneal a series of colloidal lattices displaying triangular, honeycomb, or kagome-like symmetry above a structure magnetic substrate. By using a binary mixture of particles, superlattices can be realized increasing further the variety and complexity of the colloidal patterns which can be produced. la501273b_0005.gif 捕獲.PNG 捕獲1.PNG |
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