Self-Assembly of Colloidal Cubes via Vertical Deposition

被引：120

作者：

Meijer, Janne-Mieke ^{[1
]}

Hagemans, Fabian ^{[1
]}

Rossi, Laura ^{[1
]}

Byelov, Dmytro V. ^{[1
]}

Castillo, Sonja I. R. ^{[1
]}

Snigirev, Anatoly ^{[2
]}

Snigireva, Irina ^{[2
]}

Philipse, Albert P. ^{[1
]}

Petukhov, Andrei V. ^{[1
]}

机构：

[1] Univ Utrecht, Debye Inst Nanomat Sci, Vant Hoff Lab Phys & Colloid Chem, NL-3508 TC Utrecht, Netherlands

[2] European Synchrotron Radiat Facil, F-38043 Grenoble, France

来源：

LANGMUIR | 2012年 / 28卷 / 20期

关键词：

REFRACTIVE LENSES; PHOTONIC CRYSTALS; LARGE-AREA; PARTICLES; OPAL; DIFFRACTION; FABRICATION; BANDGAP; GROWTH;

D O I：

10.1021/la3007052

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The vertical deposition technique for creating crystalline microstructures is applied for the first time to nonspherical colloids in the form of hollow silica cubes. Controlled deposition of the cubes results in large crystalline films with variable symmetry. The microstructures are characterized in detail with scanning electron microscopy and small-angle X-ray scattering. In single layers of cubes, distorted square to hexagonal ordered arrays are formed. For multilayered crystals, the intralayer ordering is predominantly hexagonal with a hollow site stacking, similar to that of the face centered cubic lattice for spheres. Additionally, a distorted square arrangement in the layers is also found to form under certain conditions. These crystalline films are promising for various applications such as photonic materials.

引用

页码：7631 / 7638

页数：8

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