期刊
APPLIED SURFACE SCIENCE
卷 255, 期 24, 页码 9676-9679出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2009.04.050
关键词
Silver nanoparticles; Laser ablation; Thin film morphology
The growth process of silver thin films deposited by pulsed laser ablation in a controlled inert gas atmosphere was investigated. A pure silver target was ablated in Ar atmosphere, at pressures ranging between 10 and 100 Pa, higher than usually adopted for thin film deposition, at different numbers of laser shots. All of the other experimental conditions such as the laser (KrF, wavelength 248 nm), the fluence of 2.0 J cm (2), the target to substrate distance of 35 mm, and the temperature (295 K) of the substrates were kept fixed. Themorphological properties of the films were investigated by transmission and scanning electron microscopies (TEM, SEM). Film formation results from coalescence on the substrate of near-spherical silver clusters landing as isolated particles with size in the few nanometers range. From a visual inspection of TEM pictures of the films deposited under different conditions, well-separated stages of film growth are identified. (C) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据