Growth and Self-Assembly of Silicon–Silicon Carbide Nanoparticles into Hybrid Worm-Like Nanostructures at the Silicon Wafer Surface

Abstract

This work describes the growth of silicon–silicon carbide nanoparticles (Si–SiC) and their self-assembly into worm-like 1D hybrid nanostructures at the interface of graphene oxide/silicon wafer (GO/Si) under Ar atmosphere at 1000 °C. Depending on GO film thickness, spread silicon nanoparticles apparently develop on GO layers, or GO-embedded Si–SiC nanoparticles self-assembled into some-micrometers-long worm-like nanowires. It was found that the nanoarrays show that carbon–silicon-based nanowires (CSNW) are standing on the Si wafer. It was assumed that Si nanoparticles originated from melted Si at the Si wafer surface and GO-induced nucleation. Additionally, a mechanism for the formation of CSNW is proposed.

Type II NdWO3/g-C3N4n–n Heterojunction for Visible-Light-Driven Photocatalyst: Exploration of Charge Transfer in Nd3+ Ion-Doped WO3/g-C3N4 Composite

“…Very recently, metal-free polymeric semiconducting material (graphitic carbon nitride, g-C 3 N 4 ) has attracted in many fields like fuel cells, heterogeneous catalysis, gas storage, and photocatalysis, because of its unique electronic structure, easy fabrication, excellent absorption properties, low cost, suitable band gap position, and thermal and chemical stability. 5 Among various semiconducting materials, tungsten oxide (WO 3 ) is a unique semiconductor that exhibits absorption within the visible region of solar spectrum. WO 3 displays distinctive physicochemical property, excellent optical properties and narrow band gap energy.…”

“…The encroachment and design of new catalysts are quite imperative to pursue with competent utilization of charge carriers under visible light. Very recently, metal-free polymeric semiconducting material (graphitic carbon nitride, g-C 3 N 4 ) has attracted in many fields like fuel cells, heterogeneous catalysis, gas storage, and photocatalysis, because of its unique electronic structure, easy fabrication, excellent absorption properties, low cost, suitable band gap position, and thermal and chemical stability …”