19 research outputs found
METHOD FOR GROWING SILICON DIOXIDE NANOWIRES
A method is proposed for growing silicon dioxide nanowires (NWs) on silicon substrates according to the vapor-liquid-crystal scheme. The use of the proposed method will allow the stable growth of oriented NWs SiO2 and coaxial Si/SiO2 structures.Исследование выполнено за счет гранта Российского научного фонда № 22-22-00449, https://rscf.ru/project/22-22-00449/
High Yield of GaAs Nanowire Arrays on Si Mediated by the Pinning and Contact Angle of Ga
Influence of Electrolyte Composition on Morphology of Titanium Dioxide Films Obtained by Titanium Anodization in a Circulated Mixing Cell
The Impact of Climatic Humidity of the Southeastern Part of Western Siberia on Spring Deficit of Moisture in the Profiles of Eroded Chernozems
Real-Time Observation of Collector Droplet Oscillations during Growth of Straight Nanowires
Wetting Layer: The Key Player in Plasma-Assisted Silicon Nanowire Growth Mediated by Tin
Controlling the Growth of Si/Ge Nanowires and Heterojunctions Using Silver-Gold Alloy Catalysts
We describe a new catalyst for group IV nanowire heterostructures, based on alloying Ag with Au, that combines the ability to control catalyst phase and nanowire structure with good environmental stability. Compared to other alloy catalysts, we show a higher oxidation resistance of AgAu and more consistent crystal shapes and catalyst/nanowire orientation relationships during growth. We show that AgAu catalysts are also stable against diffusion during growth, making them capable of forming long nanowires with uniform diameters. Furthermore, we demonstrate the growth of compositionally abrupt Si/Ge heterojunctions with good reproducibility and yield, switching individual nanowires between vapor-liquid-solid and vapor-solid-solid growth to optimize growth rates by control of the catalyst state. The stability and properties of AgAu catalysts potentially open up a promising and practical route toward control of group IV heterostructure nanowires