An effective procedure for the fabrication of patterned nanowire arrays with micron-sized features is presented. Photolithographic methods are utilized to form set patterns onto porous anodic alumina membranes (AAM), and these modified membranes can then be used in the electrochemical growth of nanowire arrays. This approach readily allows the formation of a variety of nanowire array patterns w...

Chemical vapor deposition (CVD) using gold nanoparticles as the catalyst to grow high-quality single-crystal gallium nitride nanowires was developed. This method enables control over several important aspects of the growth, including control of the nanowire diameter by using monodispersed gold clusters, control of the nanowire location via e-beam patterning of the catalyst sites, and control of...

y (1) Si nanowire models were constructed by density functional theory (DFT) using PBE atom potentials with spin polarization. Hydrogen atoms were used to terminate the surface silicon atoms of the nanowire. When the surface silicon atoms on nanowire were fully terminated by hydrogen atoms, the H/Si ratio was 0.92 (Fig.1 (a)) and when the surface silicon atoms were not maximally saturated, the ...

We show that the set of conical points of a rational function of the Riemann sphere supports at most one conformal measure. We then study the problem of existence of such measures and their ergodic properties by constructing Markov partitions on increasing subsets of sets of conical points and by applying ideas of the thermodynamic formalism. Introduction. In this paper we recall from [U2] the ...

OBJECTIVE The purpose of this clinical study was to evaluate the effect of implant body form (cylindrical and conical implants) on crestal bone levels during 6 months' follow-up after loading. MATERIALS AND METHODS A total of 32 SPI implants (19 conical implants/13 cylindrical implants) were randomly placed in 12 male patients using a submerged approach. None of the patients had compromising ...

The geometry of a collector is one of the important factors that can increase the incident radiation on the collector surface. In the present study, the incident radiation for a stationary collector with cone geometry, i.e. a conical collector, is theoretically and experimentally investigated. This type of collector is always stable and does not need a fixture to install. Moreover, it has a...

Palladium (Pd) is considered as ideal hydrogen sensing material due to its properties as high sensitivity and selectivity to hydrogen gas, fast response and reversible room temperature operation.Silicon nanowire (SiNW) functionalized with Pd based hydrogen gas nanowire sensor having quantum confinement effect and high sensitivity because of high surface to volume ratio of SiNW. This paper highl...

This chapter discusses studies of semiconducting nanowire arrays for solar cells. The concept of 3D nanowire architectures for photovoltaic light harvesting to effectively decouple light absorption and carrier separation is presented. The available literature on semiconductor nanowire solar cell studies is summarized. Optical and electronic aspects specific to nanowires are discussed to illustr...

In engineering applications, especially in the field of modern military defence, the cylindrical shells, conical shells and coupled conical-cylindrical shells are basically simplified models of many types of weapons and equipment, such as aircraft, missiles, and submarines. The study of free vibrational characteristics of cylindrical shells is comprehensive. Initially, researchers1-5 investigat...

We show that plasmonic nanowire-nanoparticle systems can perform nonlinear wavelength and modal conversions potentially serve as building blocks for signal multiplexing novel trafficking modalities. When a surface plasmon excited by pulsed laser beam propagates in nanowire, it generates localized broadband continuum at the nanowire well active locations defined sites where nanoparticles are abs...