Work

Effect of Grain Size on Spectral Response and Eternal Quantum Efficiency of a Polycrystalline Bifacial Silicon Solar Cell

Year: 2024

Type: article

Abstract: In this work, a 3D theoretical study of a grain columnar model of a bifacial silicon solar cell under monochromatic illumination, is done. From the continuity equation of the photocreated minority carriers in the base of the cell, we determined the expression of the minority carriers’ density according to the wavelength, the grain size, the recombination velocity at grain boundaries and the recombination velocities at the junction and the rear side. By the use of the minority carriers’ density, the expressions of the photocurrent density, the spectral response and the external quantum efficiency have been deduced. We noted an improvement in spectral response and quantum efficiency with the increase of the grain size. Although, the recombination velocity at the grain boundaries leads to a decrease in spectral response and quantum efficiency; what corresponds to a poor quality of the solar cell since there is a degradation of its intrinsic properties.

Source: American journal of materials science and engineering

DOI: 10.12691/ajmse-12-2-2

Authors: Adama NDIAYE, Amadou DIAO, Mountaga BOIRO, Ibrahima TOURE, Senghane MBODJI

Institutions: Cheikh Anta Diop University, Université Alioune Diop de Bambey

Language: English

Topic: Silicon and Solar Cell Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: diamond

OpenAlex ID: W4402720529