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Comparison of structures and hydrophobicity of femtosecond and nano second laser-etched surfaces on silicon

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dc.contributor.author Bao-jia, Li
dc.contributor.author Zhou, Ming
dc.contributor.author Zhanga, Wei
dc.contributor.author Amoakoa, George
dc.contributor.author Gao, Chuan-yu
dc.date.accessioned 2021-09-06T10:29:33Z
dc.date.available 2021-09-06T10:29:33Z
dc.date.issued 2012
dc.identifier.issn 23105496
dc.identifier.uri http://hdl.handle.net/123456789/6044
dc.description 5p:, ill. en_US
dc.description.abstract The rough micro- and nano- scale hierarchical structures on surfaces of materials render the surfaces superhydrophobic. In this context, we obtain both microscale grating structures and nanoscale induced structures (with some splashes) on silicon-based surfaces by means of laser etching and inducing. Our research focuses on the differences of morphology and hydrophobicity for silicon-based microstructured surfaces fabricated by femtosecond laser and nanosecond laser. The results indicated that the grating microstructures fabricated by femtosecond laser are smoother and with smaller top width of groove. Moreover, better micro-nanoscale hierarchical structures can be obtained by femtosecond laser over lapped etching for many times. On the surface with such structures, the water droplet is at Cassie Baxter state and the contact angle (CA) is 144.6◦, which indicates that the surface is middle hydrophobic. This work may provide an effective approach for fabrication of self-cleaning functional surfaces and devices en_US
dc.language.iso en en_US
dc.publisher University of Cape Coast en_US
dc.subject Laser en_US
dc.subject Silicon en_US
dc.subject Grating microstructures en_US
dc.subject Hydrophobicity en_US
dc.title Comparison of structures and hydrophobicity of femtosecond and nano second laser-etched surfaces on silicon en_US
dc.type Article en_US


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