in this paper, a new model based on kinetic theory of gases and longitude oscillations of metallic nanocluster on single carbon nanotube (cnt) in addition to phononvibrations of cnt on substrate is presented to describe the growth mechanism of ultra-long cnt in chemical vapor deposition (cvd).interaction between cnt and catalyst is investigated by lennard-jones potential. simulations demonstrat...

Fine-grain thin superconducting films can be prepared by metalorganic Chemical Aerosol Deposition Technology (CADT). In this paper, we present the preparation and properties of YBa2Cu307_ x films on the different substrates, Si and SrTiO 3 (100). It is shown that the zero-resistance temperature (Tc,0) of the films on SrTiO 3 substrates is about 90 K, and the critical current density (Jc) at 77 ...

Chemical vapor deposition (CVD) is one of the key technologies for the epitaxial crystal growth of semiconductors. In order to obtain high-performance devices, atomically controlled thin films are required. Layer by layer growth consists of various processes, i.e ., the thermal decomposition of precursors, the adsorption of growing species, their surface migration, two-dimensional nucleation, t...

The goal of our project is to pattern well-defined electrodes from single-layer graphene for use in electrochemistry investigations. We have fabricated devices using both mechanically exfoliated graphene and chemical vapor deposition (CVD) graphene. Preliminary experimental data show that the graphene is chemically clean, based on measurements that the effective area of the electrodes determine...

Eight and nine layer three dimensional photonic crystals with a defect designed specifically for accelerator applications have been fabricated. The structures were fabricated using a combination of nanofabrication techniques, including low pressure chemical vapor deposition, optical lithography, and chemical mechanical polishing. Limits imposed by the optical lithography set the minimum feature...

This work describes the combination of photolithography and self-assembly methods for fabrication of 3D photonic crystals (PCs) with well-defined micron-scale line defects embedded in the PCs. Line defects with different dimensions, shapes, and compositions have been introduced into the 3D PCs by choosing different photoresists, masks, and template-directed assembly techniques. Infiltration of ...

Silver containing nanocomposites receive increasing attention as antibacterial coatings. In this study we report on production of such materials using combination of gas aggregation sources of Ag nanoparticles and plasma enhanced chemical vapour deposition performed in HMDSO/O2 working gas mixtures. The main attention is devoted to the investigation of solubility of Ag nanoparticles in water in...

Some aspects of RF remote plasma enhanced CVD including the main features of the technique, possibilities of overcoming disadvantages typical for conventional plasma processes, and possible directions to improve the remote plasma method are discussed.