Gold nanoparticles fabricated by pulsed laser ablation in supercritical CO2

Gold nanoparticles fabricated by pulsed laser ablation in supercritical CO2 Nanosecond pulsed laser ablation (PLA) of gold plate with an excitation wavelength of 532 nm was carried out in supercritical CO2 (scCO2) to fabricate gold nanoparticles. Surface morphology of the gold plate after irradiation and the crater depth after PLA were observed by scanning electron microscopy and laser scanning microscopy, while extinction spectra of gold nanoparticles collected in the glass slide was measured by UV–Vis spectrophotometer. The gold plate was ablated at various scCO2 densities and irradiation times at constant temperature of 40°C. The ablation was also conducted at atmospheric condition with air to evaluate the environmental dependence of ablation. Both surface morphology of the irradiated gold plate and crater depth formation were significantly affected by the changes in scCO2 density, the surrounding environment, and irradiation time. As expected, the increasing scCO2 density resulted in a deeper ablation crater, however, the deepest crater was obtained at a density of 0.63 g/cm3 or pressure of 10 MPa. Gold nanoparticles generated by PLA in scCO2 have been confirmed at the spectra band near 530 nm. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Gold nanoparticles fabricated by pulsed laser ablation in supercritical CO2

Loading next page...
 
/lp/springer_journal/gold-nanoparticles-fabricated-by-pulsed-laser-ablation-in-NngqTJ0vlH
Publisher
Springer Netherlands
Copyright
Copyright © 2011 by Springer Science+Business Media B.V.
Subject
Chemistry; Inorganic Chemistry ; Catalysis; Physical Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-011-0279-x
Publisher site
See Article on Publisher Site

Abstract

Nanosecond pulsed laser ablation (PLA) of gold plate with an excitation wavelength of 532 nm was carried out in supercritical CO2 (scCO2) to fabricate gold nanoparticles. Surface morphology of the gold plate after irradiation and the crater depth after PLA were observed by scanning electron microscopy and laser scanning microscopy, while extinction spectra of gold nanoparticles collected in the glass slide was measured by UV–Vis spectrophotometer. The gold plate was ablated at various scCO2 densities and irradiation times at constant temperature of 40°C. The ablation was also conducted at atmospheric condition with air to evaluate the environmental dependence of ablation. Both surface morphology of the irradiated gold plate and crater depth formation were significantly affected by the changes in scCO2 density, the surrounding environment, and irradiation time. As expected, the increasing scCO2 density resulted in a deeper ablation crater, however, the deepest crater was obtained at a density of 0.63 g/cm3 or pressure of 10 MPa. Gold nanoparticles generated by PLA in scCO2 have been confirmed at the spectra band near 530 nm.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jan 29, 2011

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off