Diffusion-Recombination Impedance Model for Solar Cells with Disorder and Nonlinear Recombination
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Otros documentos de la autoría: Bisquert, Juan; Mora-Sero, Ivan; Fabregat-Santiago, Francisco
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Título
Diffusion-Recombination Impedance Model for Solar Cells with Disorder and Nonlinear RecombinationFecha de publicación
2013-09-23xmlui.dri2xhtml.METS-1.0.item-edition
PostprintEditor
Wiley-VCHISSN
2196-0216Cita bibliográfica
BISQUERT, Juan; MORA‐SERO, Iván; FABREGAT‐SANTIAGO, Francisco. Diffusion–Recombination Impedance Model for Solar Cells with Disorder and Nonlinear Recombination. ChemElectroChem, 2014, vol. 1, no 1, p. 289-296Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://onlinelibrary.wiley.com/doi/10.1002/celc.201300091/fullVersión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
The diffusion–recombination model is a key tool in understanding the photovoltaic operation of solar cells. Dye-sensitized solar cells, organic solar cells, and inorganic semiconductor solar cells are systems affected ... [+]
The diffusion–recombination model is a key tool in understanding the photovoltaic operation of solar cells. Dye-sensitized solar cells, organic solar cells, and inorganic semiconductor solar cells are systems affected by disorder that are often characterized with impedance spectroscopy. In this paper, we extend the previous theory of diffusion–recombination impedance including traps and nonlinear recombination. We show the transmission line equivalent circuit representation, and we describe the physical meaning of a number of model parameters that can be obtained: the chemical capacitance, ; the recombination resistance, ; the transport resistance, ; the electron lifetime, ; the electron conductivity, ; the chemical diffusion coefficient of electrons, ; and the diffusion length, . At most, three of these parameters are independent, but if the diffusion length is short, the impedance model collapses to a function that has one degree of freedom less, known as the Gerischer impedance. We show the connection of the two parameters that remain to the diffusion length and the lifetime. [-]
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ChemElectroChem, 2014, vol. 1, no 1Derechos de acceso
Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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