Sb-based pN heterojunction diodes at 6.2 Å, consisting of narrow bandgap p-type In0.27Ga0.73Sb and wide bandgap n-type In0.69Al0.41As0.41Sb0.59, have been fabricated and measured. These diodes show excellent electrical characteristics with an ideality factor of 1.2 and high current density. S-parameter measurements and subsequent analysis show that these diodes have RC-cutoff frequencies over 1...

Smooth and aligned single walled carbon nanotube (SWNT) thin films with improved optoelectronic performance are fabricated using a superacid slide casting method. Deposition of as made SWNT thin film on silicon (Si) together with post treatments result in SWNT/Si hybrid solar cells with unprecedented high fill factor of 73.8%, low ideality factor of 1.08 as well as overall dry cell power conver...

A general representation of the current in an amorphous semiconductor pn diode is developed. This expression is applied to examples of density of states functions exponential, Gaussian, and Gaussian with exponential tail commonly found in conjugated molecules and other amorphous materials. We find that the ideality factor could be voltage dependent and that its functional form is closely relate...

The unique opportunities and features of high temperature mass spectrometric method for study vaporization processes and thermodynamic properties of oxide systems and materials (glasses, ceramics and coatings) were considered. Various types of vapour species were found over oxide systems studied such as the associated, dissociated and polymerized products of vaporization. The regularities of th...

The determination of the electrical conversion efficiency (ηC) is particularly important to evaluate performance a solar cell. For evaluation by considering ideal cell characterized an absence parasitic resistances and using characteristic equation which corresponds equivalent diagram, we determine parameters such as: saturation current density (J0), short-circuit (Js...

Abstract. This work presents a thermodynamically consistent framework that enables self-contained, predictive Köhler calculations of droplet growth and activation with considerations surface adsorption, tension reduction, non-ideal water activity for chemically complex unresolved surface-active aerosol mixtures. The common presence species in atmospheric aerosols is now well-established. Howeve...

A (0; 1) matrix A is said to be ideal if all the vertices of the polytope Q(A) = fx : Ax 1; 0 x 1g are integral. The issue of nding a satisfactory characterization of those matrices which are minimally non-ideal is a well known open problem. An outstanding result toward the solution of this problem, due to Alfred Lehman, is the description of crucial properties of minimally non-ideal matrices. ...

The present article presents a method for assessing the radial stiffness of nitinol stents. An idealized stent model was created, and its radial stiffness was calculated by means of finite element modeling. The calculations were validated against experimental measurements. The variation of radial stiffness with geometrical dimensions was calculated, and the effect of increasing radial stiffness...