The effects of Au surface diffusion to formation of Au droplets/clusters and nanowire growth on GaAs substrate using VLS method

Ag nanoparticle catalyst based on Ga2O3/GaAs semiconductor nanowire growth by VLS method

“…1c to next experiments. According to technology conditions [7,8,12], especially growth temperature was exactly controlled by a Keithley 2000 multimeter with twosteps as Fig. 2b.…”

“…Therefore, in this paper, continuing several our before works [7,8,12], we report the producing Ag nanoparticle (AgNP) on GaAs wafer by using sol-gel method, which has investigated to effects of the AgNP concentration, growth temperature on formation Ga 2 O 3 /GaAs NW by VLS method. The morphology results and structural property of Ga 2 O 3 NW are also discussed.…”

“…Especially, the Ga 2 O 3 /GaAs NW growth have attracted substantial attention for various applications on nanoelectronics, optoelectronics, and nanosensors, etc. [3][4][5][6], as well as the Ga 2 O 3 /GaAs NWs growth will expect many exciting opportunities on nanoscale science and technology [7][8][9][10].…”

“…Up to now, we have had many number of methods for purpose of synthesis the semiconductor Ga 2 O 3 NWs such as vapor liquid solid-VLS, chemical vapor deposition-CVD, laser ablation catalytic growth-LCG, pulsed laser deposition-PLD, solution liquid solid-SLS, oxide assisted growth-OAG, and molecular beam epitaxy-MBE [1,[7][8][9]11], and among them, the VLS method has been a closely and usefully method. Because research the VLS method began as early as in 1964 by Wagner et al [11] for silicon whisker growth, and then this method has being applied for NWs growth on GaAs substrate.…”

“…Because research the VLS method began as early as in 1964 by Wagner et al [11] for silicon whisker growth, and then this method has being applied for NWs growth on GaAs substrate. In this case, the VLS method strongly depends on many technological factors: the growing temperature, catalyst metal, vapor pressure and gas volume, the bulk and surface diffusion of the catalyst metal [8,10,12]. Secondly, the sizes of catalyst metal particles also strongly effect the seed nuclear formation on the solid surface, the features of the phase diagram of the catalyst metal-material system to NWs growth process [1,2,8,10,13].…”