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Título del libro: 2024 21st International Conference On Electrical Engineering, Computing Science And Automatic Control, Cce 2024
Título del capítulo: An Application of Vanadium Oxide Thin Film as Window Layer in CIGSe Thin Film Solar Cells: A Computational Study

Autores UNAM:
DWIGHT ROBERTO ACOSTA NAJARRO; ODIN REYES VALLEJO;

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Autores externos:

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Idioma:

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Año de publicación:
2024

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Palabras clave:

Aluminum compounds; Fluorine compounds; Gallium phosphide; Germanium compounds; Hard facing; Indium phosphide; Photoelectric microscopes; Selenium compounds; Semiconducting indium phosphide; Solar absorbers; Vanadium compounds; Absorber layers; Cu(in, ga)se2 thin film solar cell; Device performance; Fill-factor; SCAPS software; Thin-films; V2O5buffer window layer; Vanadium oxide thin films; Window layer; ZnO; Zinc oxide

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Resumen:

In this simulation study, the SCAPS software is used to analyze the Cu(In, Ga)Se2 (CIGSe) thin film solar cells. The parameters, such as thickness, bandgap, and carrier concentration of CIGSe absorber layer, V2O5 buffer window layer and ZnO window layer are investigated to obtain the best device performance. The efficiency of CIGSe thin film solar cells is slightly enhanced by absorbing more photons when the CIGSe thickness increases from 1 to 6µm. The variation of CIGSe bandgap affects all four solar cell parameters, which is directly related to the energy of incident photons. The open circuit voltage and fill factor are dependent on the CIGSe carrier concentration. The optimum values of 3µm, 1.4 eV, and 1016cm-3were thickness, bandgap, and carrier concentrations for CIGSe. A very thick layer of window layers can raise the series resistance and a very thin layer can reduce the shunt resistance of the device. Both of these conditions strongly decreased the fill factor and consecutively the efficiency value. The best thicknesses of 100 and 25 nm were observed for V2O5 and ZnO materials, respectively. The carrier concentrations for the window layer must be higher compared to the absorber layer for improving the device's performance. The optimum efficiency of 14.58 % is found for CIGSe thin film solar cells after using the best parameters of CIGSe, V2O5, and ZnO. Hence, the SCAPS software is promising for modeling and is imperative to assess the proposed physical structure's practicability and performance. © 2024 IEEE.

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Entidades citadas de la UNAM:

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Fuente:


ISBN:
9798350377545
Editorial:
Institute of Electrical and Electronics Engineers Inc.

Tipo de producto:
Conference Paper

DOI:
10.1109/CCE62852.2024.10771007