GaAs1-xNx candidate material for a high efficiency based homojunction solar cell

Abstract

The GaAsN alloy has a great potential in the manufacture of the photovoltaic devices. A simple optimized GaAsN junction can reach conversion efficiency from > 20%, comparable with that reached by the best cells of die CISGS. Because the band gap of GaAsN can be modified from 1.4 eV to 3.4 eV by increasing the nitrogen content with multi-junction cells, it is theoretically possible to achieve the record performance 70% with this only material system, whereas the theoretical record in technology GaAs multi-junctions is less than 50%. The work presented in this paper concerns the study of photovoltaic cells based on GaAsN nitrided materials. The main objective is to optimize the front and base with their thickness and doping, on the electrical characteristic of the photovoltaic cell and subsequently its output parameters under solar illumination of AM1.5G. 54.1 % efficiency is predicted for this new GaAs1-xNx based on a simple single solar cell. This structure can also provide a fundamental solar cell unit for developing very high efficiency IBSC solar cell.

Study the length of inner bore of dipole lens and its optical and magnetic properties

“…and has the same Excitement [3]. In 2017, Al-Sahi and Abbas studied the characteristics of the proposed lenses in their research, so they studied the objective focal characteristics of the symmetrical magnetic lenses, where the lens was bipolar, using the EOD computer program [4]. In 2018, Numan presented a study of some important engineering properties in lenses, such as the bore diameter, air gap length, magnetic flux density, focus strength, magnification, spherical aberration, half width, and the minimum length, which led to an increase in the width of the air gap and lens diameter, and also led to an increase in amp cycles.…”

“…In 2018, Numan presented a study of some important engineering properties in lenses, such as the bore diameter, air gap length, magnetic flux density, focus strength, magnification, spherical aberration, half width, and the minimum length, which led to an increase in the width of the air gap and lens diameter, and also led to an increase in amp cycles. Also, a linear increase in the density of the magnetic alignment [4]. In 2019, Marwa Al-Shamma presented two versions of the magnetic lens geometry as well as the nonequivalent subject [5].…”

Structural, electronic, mechanical and optical properties of K2CuX (X=As, Sb) Ternary Compounds

“…Among the chalcopyrites, ternary chalcopyrites adopting the ABC 2 formula are most studied due to their wide range of photovoltaic applications [6]. The ABC 2 type ternary chalcopyrites comprise chalcogenides with type I-III-VI 2 anions and pnictides with type II-IV-V 2 anions [7]. Experimental studies, as well as theoretical predictions of properties of ternary chalcopyrite compounds have been performed for application in the optoelectronic and photovoltaic fields.…”

GaN nanostructure for hydrogen gas sensor

“…Porous silicon (PS) is a potential candidate for silicon-based optoelectronics applica tions such as light emitting and light sensing devices [3,4]. Even though PS has attracted more attention, its thermal, chemical, and mechanical instability hinders its large-scale applications [5]. These problems lead to the development of other porous semiconductors, such as the conventional III-V compounds including GaAs, GaP and InP as well as the wide band gap materials such as GaN and SiC [6].…”