Gallium nitride (GaN) nanostructures were successfully synthesized by the nitridation of the electrochemically deposited gallium oxide (Ga2O3) through the utilization of a so-called ammoniating process. Ga2O3 nanostructures were firstly deposited on Si substrate by a simple two-terminal electrochemical technique at a constant current density of 0.15 A/cm(2) using a mixture of Ga2O3, HCl, NH4OH ...

Newly synthesized nanostructures of graphene appear as a promising breeding ground for new technology. Therefore, it is important to identify the role played by boundary conditions in their electronic features. In this contribution we use non-equilibrium Green's function method coupled tight-binding theory calculate and compare current patterns hexagonal quantum dots, with contacts placed at di...

Engineering materials with high thermal conductivity are of fundamental interest for efficiently dissipating heat in micro/nanoelectronics. Using first principles computations we report an ultra-high 2090 Wm?1K?1 (1395 Wm?1K?1) hexagonal pure (natural) BC6N(h-BC6N). This value is among the highest conductivities known after diamond and cubic boron arsenide. lattice (k) mainly attributed phonon ...

Different nanostructured semiconducting ZnO photoanodes were prepared by Hydrothermal (HT), Co-precipitation (CoP) and Chemical Bath Deposition (CBD) methods for their use in the Dye Sensitized Solar Cells (DSSCs) present study. Additionally, different nanocomposites synthesized mixing Carbon Nanotubes (CNTs), Graphene Oxide (GO) combination with nanostructures. Scanning electron microscopy (SE...

Indium nitride has attracted increasing attention in the last few years because of its properties of potential value in optoelectronic devices and other technologies. There have been several efforts to prepare InN nanostructures, but the results reported are not altogether complete and satisfactory. Nanocrystals of InN have been produced by the reaction of InCl3 and Li3N at 250 8C, but the mate...

Novel applications of nanostructures in catalysis, electronics, photonics, and bionanotechnology are driving the exploration of synthetic approaches to control and manipulate their chemical composition, structure, and morphology. As well as the design of synthetic strategies to produce a new class of nanoscale materials, recent developments have enabled the chemical transformation of one crysta...

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Fabian Schulz Name of the doctoral dissertation Ultra-thin insulating layers of hexagonal boron nitride for high-resolution scanning tunneling spectroscopy Publisher School of Science Unit Department of Applied Physics Series Aalto University publication series DOCTORAL DISSERTATIONS 163/2016 Field of research Manuscript submi...

The goal of this thesis was to better understand and control nanowire growth by the Vapour Liquid Solid method, bymeans of structural, chemical and electronic characterization of nanowires using transmission electron microscopy.A first subject of study was the behavior of the gold catalyst particle. We have shown that control can be obtainedover gold diffusion from the catalyst part...

Two-dimensional (2-D) spatially varying convolutional filters for three-dimensional (3-D) depth extrapolation are efficiently designed and implemented by using McClellan transformations. Although efficient, McClellan transformations only approximate circularly symmetric depth extrapolation filters. The accuracy of the extrapolation filters can be increased only at an increase in the computation...