Study of Models Using One or Two Exponentials to Simulate the Characteristic Current-voltage of Silicon Solar Cells

Abstract

The production of electricity based on the conversion of the sunlight by photocells crystalline silicon is the most way using on technological and industrial plan. As a consequence, the development of the applications of energy production requires cells with high efficiency and low cost. We propose two models using either one or two exponentials allowing to simulate the characteristic current-voltage of a solar cell. The goal of our work is to present a comparative study between the model theoretical and experimental aiming at the improvement of the solar cell efficiency. We also determine the parameters of the solar cell from the current-voltage curve. Additionally, we provide a justification for using the two exponential models for improving the cell efficiency. The model with two exponential allowing to investigate the phenomena of recombination in zone of diffusion and space charge in the areas quasi-neutrals of the transmitter and the base. This study underlines the insufficiency of the model to exponential generally used by showing that it leads to the design of the ideal solar cells whereas structures characterized by a factor of quality greater outcome with high efficiency.

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“…That is, these resistances increase with increasing temperature. In fact, when the recombination speed increases, the diode acts like a resistor, hindering the flow and passage of current [32][33][34][35][36]. The integration and interdependence in the properties of chalcogenide compounds, or those that contain at least a chalcogen element, or that are based in their synthesis on silicon and transitional elements, were received extensive studies, as the optical and electrical properties have been employed to determine the suitability of these systems for photovoltaic applications, especially for various uses in solar cells [37][38][39][40][41][42], optoelectronics [43][44][45][46][47][48][49][50][51][52][53][54][55][56], and electrodes [57][58][59][60].…”