Growth Analysis of Pulsed Laser Ablated Films

被引：0
|
作者：
N. R. Agarwal
F. Neri
S. Trusso
P. M. Ossi
机构：
[1] Politecnico di Milano,Dipartimento di Chimica, Materiali e Ingegneria Chimica ‘Giulio Natta’
[2] Università di Messina,Dipartimento di Fisica e di Scienze della Terra
[3] CNR-IPCF,Dipartimento di Energia
[4] Istituto per i Processi Chimico-Fisici del CNR,undefined
[5] Politecnico di Milano,undefined
来源：
Plasmonics | 2013年 / 8卷
关键词：
Analysis; Morphology; Nanoparticles; Pulsed laser ablation; Nanostructured films;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The spontaneous organization on a substrate of nanoparticles (NPs) nucleated in a laser-generated plasma results in self-assembling due to both direct specific interactions and to indirect ambient-mediated ones. A number of well-differentiated film morphologies are observed, from isolated NPs to percolated island structures. The distribution of the width of gaps between NPs, or islands formed upon NP coalescence in two representative percolated Au films, is lognormal, indicating that the growth process is random. A finer inspection of similar surface morphologies allows to correlate regularity in gap sizes and surface coverage to differences in film performance as substrates for surface-enhanced Raman spectroscopy.
引用
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页码：1707 / 1712
页数：5
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