An Equivalent Circuit for Perovskite Solar Cell Bridging Sensitized to Thin Film Architectures
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Otros documentos de la autoría: Yoo, So-Min; YOON, SEOG JOON; Anta, Juan A.; Lee, Hyo Joong; Boix, Pablo P; Mora-Sero, Ivan
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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Título
An Equivalent Circuit for Perovskite Solar Cell Bridging Sensitized to Thin Film ArchitecturesFecha de publicación
2019-08-15Editor
ElsevierCita bibliográfica
YOO, So-Min, et al. An Equivalent Circuit for Perovskite Solar Cell Bridging Sensitized to Thin Film Architectures. Joule, 2019, 3.10: 2535-2549.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/abs/pii/S2542435119303587Versión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
Fundamental working mechanisms of perovskite solar cells (PSCs) remain an elusive topic of research. Impedance spectroscopy (IS) has been key to characterizing photovoltaic devices; however, its application to PSCs ... [+]
Fundamental working mechanisms of perovskite solar cells (PSCs) remain an elusive topic of research. Impedance spectroscopy (IS) has been key to characterizing photovoltaic devices; however, its application to PSCs has generated misleading outputs. In this work, we control the precursor concentrations to fabricate a series of PSCs with different amounts of perovskite absorber. While lower concentration devices present the well-known dye-sensitized impedance pattern, the characteristic impedance spectrum of thin-film PSCs arises for higher concentrations. The capacitances’ evolution is employed to identify the dominant physical processes in the spectrum and reveals that it is not possible to assign a single physical origin to each individual feature. On the contrary, their resistances present contributions from different physical processes, including charge transport and recombination. We provide an equivalent circuit to evaluate the IS of PSCs in terms of the processes directly affecting their performance, a tool for further development of perovskite photovoltaics. [-]
Proyecto de investigación
Generalitat Valenciana (SEJI2017/2017/012), Ministerio de Economía y Competitividad of Spain (MAT2017-88905-P, MAT2016- 76892-C3-2-R and Red de Excelencia “Emerging photovoltaic Technologies”), the National Research Foundation of Korea (NRF-2017R1D1A1B03028570) and the European Research Council (ERC) via Consolidator Grant (724424 - No-LIMIT)Derechos de acceso
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