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16 March 2023 Tungsten oxide nanoparticle and aggregate structure formation through direct femtosecond laser ablation (Conference Presentation)
Thomas A. Haase, Andrew Chan, Shinji Kihara, Claude Aguergaray, Neil G. R. Broderick
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Proceedings Volume PC12422, Oxide-based Materials and Devices XIV; PC124220V (2023) https://doi.org/10.1117/12.2665980
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
In this work we demonstrate the formation of tungsten oxide nanoparticles and aggregate structures through direct femtosecond laser ablation in air. Through selection of different ablation parameters, a degree of control over the formation of aggregate structures is achieved. This allows for the creation of web-like structures spanning large areas of the sample surface or long aggregate chains with lengths over 100 μm, corresponding to more than 1000 nanoparticles linking together. Characterization of nanoparticles is conducted using SEM, TEM and Raman spectroscopy.
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Thomas A. Haase, Andrew Chan, Shinji Kihara, Claude Aguergaray, and Neil G. R. Broderick "Tungsten oxide nanoparticle and aggregate structure formation through direct femtosecond laser ablation (Conference Presentation)", Proc. SPIE PC12422, Oxide-based Materials and Devices XIV, PC124220V (16 March 2023); https://doi.org/10.1117/12.2665980
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KEYWORDS
Laser ablation
Nanoparticles
Femtosecond phenomena
Oxides
Tungsten
Nanorods
Raman spectroscopy
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