Synthesis of crystalline TiN and Si particles by laser ablation in liquid nitrogen
Source abstract
Abstract
Laser ablation of titanium and silicon targets immersed in liquid nitrogen was carried out using a YAG laser at 1.06 μm. Synthesized particles were collected and were characterized by TEM, SEM, EDS, XRD, and XPS. In the case of a titanium target, the synthesized particles had an atomic ratio of N/Ti=0.4 and a polycrystalline structure with many XRD peaks of TiN. This result indicates the usefulness of laser ablation in liquid nitrogen for synthesizing nitrides. On the other hand, in the case of a silicon target, the nitridation of the synthesized particles was negligible, and the synthesized particles had a polycrystalline structure of pure cubic silicon. This means that the oxygen-free environment realized by liquid nitrogen is useful for synthesizing particles with negligible oxidation.
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Research context
OpenAlex topics: Laser-Ablation Synthesis of Nanoparticles · Diamond and Carbon-based Materials Research · Laser-induced spectroscopy and plasma
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (15)
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