Laser Formation of Colloidal Sulfur- and Carbon-Doped Silicon Nanoparticles

Unique sulfur- and carbon- doped silicon nanoparticles, as well as partially oxidized, are obtained by nanosecond laser ablation of silicon in liquid carbon disulfide. Detailed structural, chemical, and optical characterization of these particles was performed by scanning and transmission electron m...

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Bibliographic Details
Published in:Optics and spectroscopy 2020-07, Vol.128 (7), p.897-901
Main Authors: Nastulyavichus, A. A., Kudryashov, S. I., Smirnov, N. A., Khmel’nitskii, R. A., Rudenko, A. A., Mel’nik, N. N., Kirilenko, D. A., Brunkov, P. N., Ionin, A. A.
Format: Article
Language:English
Subjects:
Carbon
Carbon disulfide
Infrared spectroscopy
Laser ablation
Laser Physics and Laser Optics
Lasers
Microscopes
Nanoparticles
Optical Devices
Optical properties
Optics
Photonics
Physics
Physics and Astronomy
Raman spectra
Silicon
Spectrum analysis
Structural analysis
Sulfur
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Summary:Unique sulfur- and carbon- doped silicon nanoparticles, as well as partially oxidized, are obtained by nanosecond laser ablation of silicon in liquid carbon disulfide. Detailed structural, chemical, and optical characterization of these particles was performed by scanning and transmission electron microscopy, IR spectroscopy, energy dispersive X-ray spectroscopy, and Raman scattering spectroscopy. It is shown that the sulfur concentration in particles is on the order of 1 at %, owing to which they demonstrate a considerable absorption in the mid-IR region.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X20070140