Unified model for probing solar cell dynamics via cyclic voltammetry and impedance spectroscopy

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Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorLehrstuhl für Technische Physik-
Autor(es): dc.creatorLopez-Richard, Victor-
Autor(es): dc.creatorMeneghetti, Luiz A.-
Autor(es): dc.creatorNogueira, Gabriel L.-
Autor(es): dc.creatorHartmann, Fabian-
Autor(es): dc.creatorGraeff, Carlos F. O.-
Data de aceite: dc.date.accessioned2025-08-21T17:34:45Z-
Data de disponibilização: dc.date.available2025-08-21T17:34:45Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-09-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevB.110.115306-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/298976-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/298976-
Descrição: dc.descriptionDespite the remarkable progress in emerging solar cell technologies such as hybrid organic-inorganic perovskites, there are still significant limitations related to the stability of the devices and their nonideal electrical behavior under certain external stimuli. We present a conceptual framework for characterizing photovoltaic devices by integrating cyclic voltammetry (CV) and impedance spectroscopy (IS). This framework is constructed from a microscopic, multimode perspective that explicitly accounts for drift, diffusion, displacement, and memory contributions. We derive comprehensive analytical expressions for current-voltage relationships and complex admittance. Our model reveals the inseparable connection between hysteresis behaviors in current-voltage characteristics observed in CV and the apparent capacitive and inductive behaviors seen in IS spectral analysis. We demonstrate how CV and IS naturally complement each other, providing a deeper microscopic understanding of device performance and limitations. Additionally, we establish the relationship between intrinsic material parameters and experimentally accessible extrinsic parameters such as light intensity, temperature, DC bias, voltage amplitude, and frequency. This framework enables unprecedented optimization of solar cell performance, marking a significant advancement toward sustainability.-
Descrição: dc.descriptionDepartamento de Física Universidade Federal de São Carlos, São Paulo-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Department of Physics and Meteorology, São Paulo-
Descrição: dc.descriptionJulius-Maximilians-Universität Würzburg Physikalisches Institut Würzburg-Dresden Cluster of Excellence Ct.qmat Lehrstuhl für Technische Physik, Am Hubland-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Department of Physics and Meteorology, São Paulo-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review B-
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Título: dc.titleUnified model for probing solar cell dynamics via cyclic voltammetry and impedance spectroscopy-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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