Probing Nucleation Mechanism of Self-Catalyzed InN Nanostructures

Probing Nucleation Mechanism of Self-Catalyzed InN Nanostructures

The nucleation and evolution of InN nanowires in a self-catalyzed growth process have been investigated to probe the microscopic growth mechanism of the self-catalysis and a model is proposed for high pressure growth window at ~760 Torr. In the initial stage of the growth, amorphous InNx microparticles of cone shape in liquid phase form with assistance of an InNx wetting layer on the substrate....

Glucose Oxidase Catalyzed Self-Assembly of Bioelectroactive Gold Nanostructures

Glucose oxidase catalyzes the formation of metallic gold particles in immediate proximity of the protein from gold (III) chloride in the absence of any other catalytic or reductive substrates. The protein-mediated gold reduction reaction leads to size-controllable gold particle formation and concomitant association of the enzyme in an electrically conductive metallic template. Such an enzyme im...

Regulating Self-organizing Nanostructures via External Mechanism

A Transmission Electron Microscopy Study on Self-Catalyzed GaAs Nanostructures

Semiconductor nanostructures are potential building blocks for many applications in photonics, electronics, physics, and life sciences. They are also a good candidate to study quantum mechanics and related novel phenomena, based on the dimensionality and the size reduction. Among various nanostructures, one-dimensional (1-D) III-V nanostructures grown on Si substrates have received a lot of att...

Growth Mechanism of Self-Catalyzed Group III−V Nanowires

Group III-V nanowires offer the exciting possibility of epitaxial growth on a wide variety of substrates, most importantly silicon. To ensure compatibility with Si technology, catalyst-free growth schemes are of particular relevance, to avoid impurities from the catalysts. While this type of growth is well-documented and some aspects are described, no detailed understanding of the nucleation an...