Transformation of Gold Nanorods in Liquid Media Induced by nIR, Visible, and UV Laser Irradiation
Abstract
Gold nanorods (GNRs) were initially prepared with three different aspect ratios (2.5, 2.9, and 3.8) via a seed-mediated chemical route, using cetyltrimethylammonium bromide (CTAB) as the organic surfactant. These rods were then irradiated under continuous-wave (λ = 1064 nm) and pulsed (λ = 1064, 532, 355 nm) emission modes using Nd:YVO 4 and Nd:YAG lasers, respectively. The photostability and behavior of the Au nanorods under these laser irradiation conditions were studied using UV–vis–nIR spectroscopy and electron microscopy. Photofragmentation and melting mechanisms were provoked as a function of laser irradiation parameters (emission mode and wavelength) and caused the GNRs to undergo considerable morphological changes. Important differences were observed between the wavelengths used for irradiation, indicating significantly different nanorod breakdown mechanisms.
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Shape change is another effective strategy to tune plasmon resonance, as observed experimentally in gold nanorods, gold nanostars, and silver nanoplates.
“Indeed, beside the aforementioned alloying, a shape change is another effective strategy to tune the plasmon resonance. This was observed experimentally in gold nanorods [151,152], gold nanostars [153] and silver nanoplates [154,155].”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [152]
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Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications
Fazio, E., Gökce, B., De Giacomo, A., Meneghetti, M., Compagnini, G., Tommasini, M., Waag, F., Lucotti, A., Zanchi, C. G., Ossi, P. M., et al. (2020) · Nanomaterials · doi:10.3390/nano10112317 · Cited by 346 · see citing works
“nanorods [151,152], gold nanostars [153] and silver nanoplates [154,155].”
BackgroundScardaci, V., Pulvirenti, M., Condorelli, M., & Compagnini, G. (2020) · Journal of Materials Chemistry C · doi:10.1039/d0tc00367k · Cited by 14 · see citing works
- Authors
- Attia, Y. A., Flores-Arias, M. T., Nieto, D., Vázquez-Vázquez, C., De La Fuente, G. F., & López-Quintela, M. A.
- Affiliations
- Cairo University (EG)
- Microoptics and GRIN Optics Group (Unidad Mixta Asociada al CSIC), Department of Applied Physics, Faculty of Physics, University of Santiago de Compostela, A Coruña, Spain
- Consejo Superior de Investigaciones Científicas (ES)
- Department of Physical Chemistry, Faculty of Chemistry, University of Santiago de Compostela, A Coruña, Spain
- ICMA (CSIC-University of Zaragoza), Zaragoza, Spain
- Universidade de Santiago de Compostela (ES)
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-05-29
- Volume
- 119
- Issue
- 23
- Pages
- 13343-13349
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2511858820
- Cited by
- 16
- References
- 0
- Citations by year
- 2023: 2 · 2022: 1 · 2021: 3 · 2020: 4 · 2019: 2 · 2018: 3 · 2015: 1
- FWCI
- 0.44
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Journal of Physical Chemistry C (publishedVersion)
- DIGITAL.CSIC (Spanish National Research Council (CSIC)) (acceptedVersion)
- Funders
- Ministerio de Ciencia e Innovación (MAT2010-20442, MAT2011-28673-C02-01)
- Ministerio de Economía y Competitividad (MAT2012-36754-C02-01)
- Xunta de Galicia (EM019/2012, GRC2013-044)
- European Regional Development Fund
- Topics
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Gold and Silver Nanoparticles Synthesis and Applications
- Physical Sciences › Engineering › Biomedical Engineering › Laser-Ablation Synthesis of Nanoparticles
- Physical Sciences › Materials Science › Materials Chemistry › Nanocluster Synthesis and Applications
- Keywords
- gold nanorods, laser irradiation, photodissociation, aspect ratio, seed-mediated synthesis, cetyltrimethylammonium bromide, Nd:YVO4 laser, Nd:YAG laser, pulsed laser irradiation, continuous-wave laser irradiation, photostability, morphological changes
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