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Pulsed laser deposition of nanoparticle films of Au

Donnelly, T.; Krishnamurthy, S.; Carney, K.; McEvoy, N. and Lunney, J. G. (2007). Pulsed laser deposition of nanoparticle films of Au. Applied Surface Science, 254(4) pp. 1303–1306.

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Nanosecond pulsed laser deposition (PLD) has been used to grow nanoparticle films of Au on Si and sapphire substrates. The equivalent solid density thickness was measured with a quartz crystalmonitor and the ion fluxwas measured with a time-of-flight Langmuir probe.The ion signal yields the ion energy distribution. The angular distribution of deposited material and the ablated mass per pulse were also measured. These values are incorporated into an isentropic plasma expansion model for a better description of the expansion of the ablated material.Atomic force microscopy and UV/vis optical spectroscopy were used to characterise the films. Atomic force microscopy shows that in the equivalent thickness range 0.5–5 nm the deposited material is nanostructured and the surface coverage increases with increasing equivalent thickness. The optical absorption spectra show the expected surface plasmon resonance, which shifts to longer wavelengths and increases in magnitude as the equivalent thickness is increased.

Item Type: Journal Item
Copyright Holders: 2007 Elsevier B.V.
ISSN: 0169-4332
Project Funding Details:
Funded Project NameProject IDFunding Body
DESYGN-ITNMP4-CT-2004-505626EU Specific Targeted Research Project
Keywords: gold nanoparticles; pulsed laser deposition; surface plasmon resonance; ablation plume
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 35395
Depositing User: Satheesh Krishnamurthy
Date Deposited: 25 Apr 2013 10:06
Last Modified: 07 Dec 2018 10:10
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