Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 11, 2016
|
|
---|---|---|
Article Number | 16008 | |
Number of page(s) | 5 | |
DOI | https://doi.org/10.2971/jeos.2016.16008 | |
Published online | 06 February 2016 |
Regular paper
Controlling the optical creation of gold nanoparticles in a PVA matrix by direct laser writing
1
Consiglio Nazionale delle Ricerche, Istituto di Nanotecnologia - Nanotec, UOS di Cosenza Ponte Pietro Bucci Cubo 31/C, 87036 Rende (CS), Italy
2
Università della Calabria - Dipartimento di Fisica Ponte Pietro Bucci Cubo 31/C - 87036 Rende (CS), Italy
3
Universit`a della Calabria - Dipartimento di Chimica e Tecnologie Chimiche Ponte Pietro Bucci Cubo 14/C, 87036 Rende (CS), Italy
a tiziana.ritacco@fis.unical.it
b loredana.ricciardi@unical.it
c massimo.ladeda@unical.it
d michele.giocondo@cnr.it
Received:
31
October
2015
Revised:
4
December
2015
We report about the study on the physical features of gold nano-particles (GNPs) created by 2-photons photo-reduction Direct Laser Writing in a Poly-Vinyl Alcohol (PVA) matrix doped with HAuCl4. We drop cast a film of the PVA+ HAuCl4 onto a glass substrate, in which we create 1D gratings made by stripes of GNPs with a single laser sweep. We show that the stripe width increases with the laser power and the exposure time. We also analyse the influence of the exposure time over the created nano-particles size distribution and density and we show that by suitably adjusting the exposure time it is possible to maximize the frequency of a given diameter.
By comparing the experimental results with a polymerization “voxel” model, we are able to evaluate the effective cross section for 2-photons absorption of our material.
Key words: 2P-photoreduction / direct laser writing / nanofabrication
© The Author(s) 2016. All rights reserved.
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