Journal
APPLIED SURFACE SCIENCE
Volume 436, Issue -, Pages 662-669Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2017.12.057
Keywords
Selenium nanoparticles; Hydrosols; Femtosecond laser ablation; Milligram-per-second scale production; Nanoinks; 2D-printing; Surface patterns and coatings; All-dielectric visible/near-IR sensing nanoelements
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Funding
- Russian Science Foundation [15-19-00208]
- Government of the Russian Federation through ITMO Visiting Professorship Program [074-U01]
- Russian Foundation for Basic Research [16-52-540002 Viet a]
- Ministry of Education and Science of the Russian Federation [idRFMEFI62117X0018]
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Milligram-per-second production of selenium nanoparticles in water sols was realized through 7-W, 2 MHz-rate femtosecond laser ablation of a crystalline trigonal selenium pellet. High-yield particle formation mechanism and ultimate mass-removal yield were elucidated by optical profilometry and scanning electron microscopy characterization of the corresponding crater depths and topographies. Deposited selenium particles were inspected by scanning and transmission electron microscopy, while their hydrosols (nanoinks) were characterized by optical transmission, Raman and dynamic light scattering spectroscopy. 2D patterns and coatings were ink-jet printed on thin supported silver films and their bare silica glass substrates, as well as on IR-transparent CaF2 substrates, and characterized by electron microscopy, energy-dispersive x-ray spectroscopy, and broadband (vis-mid IR) transmission spectroscopy, exhibiting crystalline selenium nanoparticles with high refractive index as promising all-dielectric sensing building nanoblocks in nanophotonics. (C) 2017 Elsevier B.V. All rights reserved.
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