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JACOB BARRANCO-CISNEROS
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Volume 46 All articles Published: 4 May 2023 Article ID 0092
Single-step femtosecond laser-induced formation of coexisting microstructures in silicon
LUIS HUMBERTO ROBLEDO-TABOADA JAVIER FRANCISCO JIMÉNEZ-JARQUÍN MARIELA FLORES-CASTAÑEDA ANTONIO MÉNDEZ-BLAS JACOB BARRANCO-CISNEROS SANTIAGO CAMACHO-LÓPEZ
Various micron and submicron structures were laser-induced on silicon, including LIPSS (laser-induced periodic surface structures), grooves, conical spikes and deep craters. We used a fibre-based femtosecond (fs) laser toablate the silicon wafer in ambient air. The formed structures strongly depend on the per-pulse laser fluence and the number of delivered pulses. We characterized the obtained structures using electron scanning microscopy and atomic force microscopy. Our results revealed interesting features such as flipping structure orientation and the coexistence of two or more types of structures that exhibit a unique wetting behaviour (contact angle with water). We found that the type of surface structures significantly influences the surface wettability.
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Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
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Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
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