Operating Mechanisms of Mesoscopic Perovskite Solar Cells through Impedance Spectroscopy and J-V Modeling
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Other documents of the author: 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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comunitat-uji-handle2:10234/2507
comunitat-uji-handle3:10234/6973
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Title
Operating Mechanisms of Mesoscopic Perovskite Solar Cells through Impedance Spectroscopy and J-V ModelingAuthor (s)
Date
2017-11Publisher
American Chemical SocietyBibliographic citation
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.Type
info:eu-repo/semantics/articlePublisher version
https://pubs.acs.org/doi/abs/10.1021/acs.jpclett.7b02848Version
info:eu-repo/semantics/submittedVersionSubject
Abstract
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. [-]
Investigation project
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)Rights
© 2017 American Chemical Society
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