Formation of Stripe Patterns in Charged Colloids during Unidirectional Crystallization in the Presence of Impurity Particles

被引：2

作者：

Yoshizawa, Koki ^{[1
]}

Onda, Sachiko ^{[1
]}

Sawada, Tsutomu ^{[2
]}

Yamanaka, Junpei ^{[1
]}

机构：

[1] Nagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan

[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan

来源：

CHEMISTRY LETTERS | 2012年 / 41卷 / 03期

关键词：

DIFFUSION; CRYSTALS; SILICA; BASE; GROWTH;

D O I：

10.1246/cl.2012.322

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We examine the spatial distributions of fluorescent-labeled polystyrene (PS) particles added to colloidal silica that resulted after unidirectional crystal growth due to diffusion of pyridine. We find that the PS particles are arranged in a stripe pattern with a submillimeter-sized spacing. The patterning mechanism is attributable to the formation of lamella-shaped crystal grains and exclusion of the PS particles to the crystal grain boundaries.

引用

页码：322 / 324

页数：3

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