Operating Mechanisms of Mesoscopic Perovskite Solar Cells through Impedance Spectroscopy and J-V Modeling
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Otros documentos de la autoría: Zarazúa, Isaac; Sidhik, Siraj; López-Luke, Tzarara; Esparza, Diego; De la Rosa, Elder; Reyes-Gomez, J.; Mora-Sero, Ivan; Garcia-Belmonte, Germà
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Título
Operating Mechanisms of Mesoscopic Perovskite Solar Cells through Impedance Spectroscopy and J-V ModelingAutoría
Fecha de publicación
2017-11Editor
American Chemical SocietyCita bibliográfica
ZARAZÚA, Isaac, et al. Operating Mechanisms of Mesoscopic Perovskite Solar Cells through Impedance Spectroscopy and J–V Modeling. The journal of physical chemistry letters, 2017, vol. 8, no 24, p. 6073-6079.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://pubs.acs.org/doi/abs/10.1021/acs.jpclett.7b02848Versión
info:eu-repo/semantics/submittedVersionPalabras clave / Materias
Resumen
The performance of perovskite solar cell (PSC) is highly sensitive to deposition conditions, the substrate, humidity, and the efficiency of solvent extraction. However, the physical mechanism involved in the observed ... [+]
The performance of perovskite solar cell (PSC) is highly sensitive to deposition conditions, the substrate, humidity, and the efficiency of solvent extraction. However, the physical mechanism involved in the observed changes of efficiency with different deposition conditions has not been elucidated yet. In this work, PSCs were fabricated by the antisolvent deposition (AD) and recently proposed air-extraction antisolvent (AAD) process. Impedance analysis and J–V curve fitting were used to analyze the photogeneration, charge transportation, recombination, and leakage properties of PSCs. It can be elucidated that the improvement in morphology of perovskite film promoted by AAD method leads to increase in light absorption, reduction in recombination sites, and interstitial defects, thus enhancing the short-circuit current density, open-circuit voltage, and fill factor. This study will open up doors for further improvement of device and help in understanding its physical mechanism and its relation to the deposition methods. [-]
Proyecto de investigación
Consejo Nacional de Ciencia y Tecnología (CONACYT) (grant 259192) ; CEMIE-Solar (207450) ( consortium projects P27 and P28) ; MINECO of Spain (MAT2016-76892-C3-1-R) ; Generalitat Valenciana (PROMETEOII/2014/020)Derechos de acceso
© 2017 American Chemical Society
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info:eu-repo/semantics/openAccess
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