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Entropy
Volume 23
Issue 5
10.3390/e23050579
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Article

A Theoretical Perspective of the Photochemical Potential in the Spectral Performance of Photovoltaic Cells

by
Agustin Pérez-Madrid
1,† and
Ivan Santamaría-Holek
2,*,†
1
Departament de Física de la Matèria Condensada, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain
2
UMDI-Facultad de Ciencias, Universidad Nacional Autónoma de México Campus Juriquilla, Querétaro 76230, Mexico
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Entropy 2021, 23(5), 579; https://doi.org/10.3390/e23050579
Submission received: 23 February 2021 / Revised: 23 April 2021 / Accepted: 26 April 2021 / Published: 8 May 2021
(This article belongs to the Special Issue Entropy-based Methods in In and Out of Equilibrium Systems)
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Abstract

We present a novel theoretical approach to the problem of light energy conversion in thermostated semiconductor junctions. Using the classical model of a two-level atom, we deduced formulas for the spectral response and the quantum efficiency in terms of the input photons’ non-zero chemical potential. We also calculated the spectral entropy production and the global efficiency parameter in the thermodynamic limit. The heat transferred to the thermostat results in a dissipative loss that appreciably controls the spectral quantities’ behavior and, therefore, the cell’s performance. The application of the obtained formulas to data extracted from photovoltaic cells enabled us to accurately interpolate experimental data for the spectral response and the quantum efficiency of cells based on Si-, GaAs, and CdTe, among others.
Keywords: PVC; spectral response; quantum efficiency; spectral entropy production; photochemical potential; two-level atom model PVC; spectral response; quantum efficiency; spectral entropy production; photochemical potential; two-level atom model

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MDPI and ACS Style

Pérez-Madrid, A.; Santamaría-Holek, I. A Theoretical Perspective of the Photochemical Potential in the Spectral Performance of Photovoltaic Cells. Entropy 2021, 23, 579. https://doi.org/10.3390/e23050579

AMA Style

Pérez-Madrid A, Santamaría-Holek I. A Theoretical Perspective of the Photochemical Potential in the Spectral Performance of Photovoltaic Cells. Entropy. 2021; 23(5):579. https://doi.org/10.3390/e23050579

Chicago/Turabian Style

Pérez-Madrid, Agustin, and Ivan Santamaría-Holek. 2021. "A Theoretical Perspective of the Photochemical Potential in the Spectral Performance of Photovoltaic Cells" Entropy 23, no. 5: 579. https://doi.org/10.3390/e23050579

APA Style

Pérez-Madrid, A., & Santamaría-Holek, I. (2021). A Theoretical Perspective of the Photochemical Potential in the Spectral Performance of Photovoltaic Cells. Entropy, 23(5), 579. https://doi.org/10.3390/e23050579

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