UV-initiated growth of gold nanoparticles in PMMA matrix

被引：54

作者：

Alexandrov, A

Smirnova, L

Yakimovich, N

Sapogova, N

Soustov, L

Kirsanov, A

Bityurin, N ^{[1
]}

机构：

[1] RAS, Inst Appl Phys, Nizhnii Novgorod 603950, Russia

[2] Nizhnii Novgorod State Univ, Dept Chem, Nizhnii Novgorod 603950, Russia

来源：

APPLIED SURFACE SCIENCE | 2005年 / 248卷 / 1-4期

关键词：

gold nanoparticles; UV irradiation; PMMA; Mie theory; growth kinetics;

D O I：

10.1016/j.apsusc.2005.03.002

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：

Polymethylmethacrylate (PMMA) films containing HAuCl4 (number density of 6 x 10(19) cm(-3)) were irradiated by a UV lamp and then annealed at various temperatures. The modification of the samples was investigated by in situ optical absorption spectroscopy and atomic-force microscopy (AFM). The disappearance of HAuCl4 followed by gold nanoparticles growth in the films was revealed. The evolution of the size distribution of the nanoparticles during annealing was investigated using the Mie theory. The growth kinetics model based on the non-stationary first-order phase transition theory estimates a critical radius of 2 nm for the growing nanoparticles at 75 degrees C. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：181 / 184

页数：4

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