Flux-assisted self-assembly of monodisperse colloids

被引：23

作者：

Cademartiri, L

Sutti, A

Calestani, G

Dionigi, C

Nozar, P

Mighori, A

机构：

[1] Dipartimento Chim Gen, I-43100 Parma, Italy

[2] CNR, ISMN Bologna, I-40129 Bologna, Italy

[3] CNR, IMN Bologna, I-40129 Bologna, Italy

来源：

LANGMUIR | 2003年 / 19卷 / 19期

关键词：

D O I：

10.1021/la034485r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have developed a novel method to grow ordered layers of monodisperse colloids on a flat substrate. The evaporation of the colloidal suspension in the presence of the inclined substrate is strengthened by an external gas flux directed on the meniscus. The meniscus oscillations caused by the gas flux have an evident effect on the ordering of the spheres on the substrate. Thick films (more than 150 layers in a single-step deposition) of large area single crystals (similar to1 cm(2)) can be obtained in a very short time (similar to1 cm/h maximum growth rate) and from very diluted suspensions (up to 0.022% volume fraction).

引用

页码：7944 / 7947

页数：4

共 53 条

[1]

Astratov VN, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.165215

[2] Ordered layers of monodispersive colloids [J].