Controlled assembly of two-dimensional colloidal crystals

被引：21

作者：

Wei, QH ^{[1
]}

Cupid, DM

Wu, XL

机构：

[1] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

[2] Morehouse Coll, Dept Phys, Atlanta, GA 30314 USA

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 11期

关键词：

D O I：

10.1063/1.1310210

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Under the influence of capillary forces, colloidal particles embedded in a soap film self-organize to form polycrystalline monolayers when the film is withdrawn from a concentrated suspension. Here, we show that mechanically generated capillary waves on the free surface of the bulk colloidal suspension can cause migration of grain boundaries, and under certain conditions, completely eliminate them. This dramatic effect, we call "mechanic annealing," provides a robust means of growing two-dimensional single crystals with size that has never been achieved before. The method is expected to be applicable to a variety of self-assembling systems. (C) 2000 American Institute of Physics. [S0003-6951(00)05437-1].

引用

页码：1641 / 1643

页数：3

共 26 条

[1] SHEAR-INDUCED MELTING [J].

ACKERSON, BJ ;

CLARK, NA .

PHYSICAL REVIEW LETTERS, 1981, 46 (02) :123-126

[2] Micro total analysis systems. 2. Analytical standard operations and applications [J].

Auroux, PA ;

Iossifidis, D ;

Reyes, DR ;

Manz, A .

ANALYTICAL CHEMISTRY, 2002, 74 (12) :2637-2652

[3] Colloid monolayers as versatile lithographic masks [J].

Burmeister, F ;

Schafle, C ;

Matthes, T ;

Bohmisch, M ;

Boneberg, J ;

Leiderer, P .

LANGMUIR, 1997, 13 (11) :2983-2987

[4] Controlled growth of hard-sphere colloidal crystals [J].

Cheng, ZD ;

Russell, WB ;

Chaikin, PM .

NATURE, 1999, 401 (6756) :893-895

[5] 2-DIMENSIONAL CRYSTALLIZATION [J].

DENKOV, ND ;

VELEV, OD ;

KRALCHEVSKY, PA ;

IVANOV, IB ;

YOSHIMURA, H ;

NAGAYAMA, K .

NATURE, 1993, 361 (6407) :26-26

[6] Nanoparticle arrays in freely suspended vitrified films [J].

Denkov, ND ;

Yoshimura, H ;

Nagayama, K ;

Kouyama, T .

PHYSICAL REVIEW LETTERS, 1996, 76 (13) :2354-2357

[7]

Gottstein G., 1999, CRC MAT SCI TECHNOL

[8] Synthesis of macroporous minerals with highly ordered three-dimensional arrays of spheroidal voids [J].

Holland, BT ;

Blanford, CF ;

Stein, A .

SCIENCE, 1998, 281 (5376) :538-540

[9] Polymerized colloidal crystal hydrogel films as intelligent chemical sensing materials [J].

Holtz, JH ;

Asher, SA .

NATURE, 1997, 389 (6653) :829-832

[10] CAPILLARY FORCES BETWEEN COLLOIDAL PARTICLES [J].

KRALCHEVSKY, PA ;

NAGAYAMA, K .

LANGMUIR, 1994, 10 (01) :23-36

← 1 2 3 →