Self-assembly of silver nano-particles on stearic acid Langmuir-Blodgett film: evidence of fractal growth

被引：22

作者：

Sarkar, J ^{[1
]}

Pal, P ^{[1
]}

Talapatra, GB ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Spect, Kolkata 700032, W Bengal, India

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 401卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2004.11.085

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new technique has been developed to make Langmuir-Blodgett films (LB) on solid substrate containing silver nano-particle clusters. It is based on electrostatic attraction between negatively charged acid groups of stearic acid and positively charged silver nano-particles in silver sol. TEM picture shows that the cluster growth is fractal in nature of dimensions ranging from 1.4 to 1.8 depending on the growth time. After sufficient time of immersion in silver sol, the fractal structure is transformed to lumpy structures. Possible reasons for the formation of silver nano-cluster in LB film are discussed. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：400 / 404

页数：5

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