Towards true 3-dimensional BCC colloidal crystals with controlled lattice orientation

POLYMER

卷:50

Article

Dziomkina, Nina V.¹  Hempenius, Mark A.¹  Vancso, G. Julius¹ 

[1] Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands

关键词: Colloidal crystals;    BCC structure;    Electrophoresis;   

DOI  :  10.1016/j.polymer.2009.03.062

来源: Elsevier

【 摘 要 】

A fabrication method of colloidal crystals possessing the BCC crystal structure is described. BCC colloidal crystals with a thickness of up to seven colloidal layers were grown in the direction of the (100) crystal plane. Defect free colloidal crystals with a homogeneous surface coverage were obtained over a surface area of several square millimeters. Quality and thickness of grown colloidal crystals were controlled by a set of deposition parameters such as deposition voltage, deposition time, and concentration of colloidal particles in the colloidal suspension, colloid surface charge density and withdrawal speed of electrodes out of the suspension. Optimal deposition parameters leading to a controlled BCC colloidal crystal growth were established. (C) 2009 Elsevier Ltd. All rights reserved.

【 授权许可】

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