Synthesis and properties of silicon carbide nanoparticles obtained by laser pyrolysis method

The conditions for the synthesis of silicon carbide nanoparticles in a SiH4/C2H2/Ar/He gas mixture under the action of CO2 laser radiation with a wavelength of 10.6 μm are determined. It was found that laser synthesis of SiC particles is observed when the ratio of gas flows SiH4/C2H2 is in the range of 1.6-3.2. The temperature in the region of the reaction zone was ~1400-1500°C. Silicon carbide nanoparticles ~6 nm in diameter were obtained and their composition was investigated.

Synthesis and Characterization of Laser Induced Graphene (LIG) and laser Reduced Graphene Oxide (lrGO) by using a pulsed CO2 laser

ABSTRACTWe detail a method to produce graphite materials with a three-dimensional, flexible and porous structure obtained from the exposure to CO2 laser radiation. One of them is Laser Induced Graphene (LIG) grown from an insulating polyimide as raw material, and the other is laser reduced graphene oxide (lrGO), obtained from a graphene oxide (GO) thin film. For both materials, we describe their morphology, crystalline structure and electrical characterizations. These materials have important applications in organic electronics technology.