Synthesis of ultrafine gallium nitride powder by the direct current arc plasma method

Abstract

Superconducting properties and crystal structures of singlecrystal niobium nitride thin films deposited at ambient substrate temperature Structural investigation of two carbon nitride solids produced by cathodic arc deposition and nitrogen implantation

Generation of Charged Nanoparticles During the Synthesis of GaN Nanostructures by Atmospheric-Pressure Chemical Vapor Deposition

“…At the NH 3 flow rates of 400 and 200 sccm, the hexagonal crystals were synthesized as shown in Figures 3a and b, respectively. This hexagon shape has been already reported as a typical GaN crystal (Grzegory et al 1995;Li et al 1996). The deposition was nonuniform on the Si substrate; although the amount of GaN in Figure 3a appeared smaller than that in Figure 3b, the overall amount in the sample in Figure 3a was larger than that in Figure 3b.…”

Laser ablation in liquids: Applications in the synthesis of nanocrystals

“…In fact, in the past decade, more and more chemical and physical routes under moderate temperatures and pressures have been used to synthesize the high-pressure phases with the metastable structural states in the corresponding thermodynamic equilibrium diagram [206][207][208][209][210][211][212]. As described in Section 4, the thermodynamic state of high temperature, high pressure and high density created by PLA of a solid target in a liquid environment is favorable for the formation of the metastable phases.…”

The Preparation Methods of Gallium Nitride Powder

“…Due to excellent characteristics like high efficient and contamination-free, plasma method was an important method to synthesize GaN nanopowder using Ga metal and NH 3 /N 2 as raw materials. Li et al [6,7] had fabricated ultrafine hexagonal GaN powder with the size about 20-200nm using the dc arc plasma method. Their investigation demonstrated that the conversion of Ga metal to GaN nanopowder was determined by the mixture ration of NH 3 and N 2 in the mixture gas.…”