Template-directed convective assembly of three-dimensional face-centered-cubic colloidal crystals

被引：48

作者：

Zhang, J ^{[1
]}

Alsayed, A ^{[1
]}

Lin, KH ^{[1
]}

Sanyal, S ^{[1
]}

Zhang, F ^{[1
]}

Pao, WJ ^{[1
]}

Balagurusamy, VSK ^{[1
]}

Heiney, PA ^{[1
]}

Yodh, AG ^{[1
]}

机构：

[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 17期

关键词：

D O I：

10.1063/1.1516614

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate that square two-dimensional grating templates can drive the growth of three-dimensional, face-centered-cubic (fcc) colloidal crystals by convective assembly. The square symmetry [i.e., (100) planes parallel to the substrate] of the underlying template was transferred to the colloidal crystal and maintained throughout its growth of similar to50 layers. We characterized crystals grown on flat and on templated substrates using electron microscopy and small-angle x-ray scattering (SAXS). SAXS measurements of the templated samples clearly show fourfold diffraction patterns that arise from fcc domains without stacking faults. (C) 2002 American Institute of Physics.

引用

页码：3176 / 3178

页数：3

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