Deleterious Effect of Negative Capacitance on the Performance of Halide Perovskite Solar Cells
Impacto
Scholar |
Otros documentos de la autoría: Fabregat-Santiago, Francisco; Kulbak, Michael; Zohar, Arava; Vallés Pelarda, Marta; Hodes, Gary; Mora-Sero, Ivan
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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http://dx.doi.org/10.1021/acsenergylett.7b00542 |
Metadatos
Título
Deleterious Effect of Negative Capacitance on the Performance of Halide Perovskite Solar CellsAutoría
Fecha de publicación
2017Editor
American Chemical SocietyISSN
2380-8195Cita bibliográfica
FABREGAT-SANTIAGO, Francisco, et al. Deleterious Effect of Negative Capacitance on the Performance of Halide Perovskite Solar Cells. ACS Energy Letters, 2017, vol. 2, no 9, p. 2007-2013.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://pubs.acs.org/doi/abs/10.1021/acsenergylett.7b00542Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Negative capacitance in photovoltaic devices has been observed and reported in several cases, but its origin, at low or intermediate frequencies, is under debate. Here we unambiguously demonstrate a direct correlation ... [+]
Negative capacitance in photovoltaic devices has been observed and reported in several cases, but its origin, at low or intermediate frequencies, is under debate. Here we unambiguously demonstrate a direct correlation between the observation of this capacitance and a corresponding decrease in performance of a halide perovskite (HaP; CsPbBr3)-based device, expressed as reduction of open-circuit voltage and fill factor. We have prepared highly stable CsPbBr3 HaPs that do not exhibit any degradation over the duration of the impedance spectroscopy measurements, ruling out degradation as the origin of the observed phenomena. Reconstruction of current-voltage curves from the impedance spectroscopy provided further evidence of the deleterious role of negative capacitance on photoconversion performance. [-]
Publicado en
ACS Energy Letters, 2017, vol. 2, no 9, p. 2007-2013.Proyecto de investigación
MINECO of Spain by Generalitat Valenciana / MAT2016-76892-C3-I-R; PROMETEOII/2014/020; University Jaume I / UJIB2016-35; Israel Ministry of Science's Tashtiot program; Weizmann InstituteDerechos de acceso
© 2017 American Chemical Society
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