Ionic Dipolar Switching Hinders Charge Collection in Perovskite Solar Cells with Normal and Inverted Hysteresis
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Otros documentos de la autoría: Almora Rodríguez, Osbel; López Varo, Pilar; Taek Cho, Kyung; Aghazada, Sadig; Meng, Wei; Hou, Yi; Echeverría-Arrondo, Carlos; Zimmermann, Iwan; Matt, Gebhard J.; Jiménez Tejada, Juan Antonio; Brabec, Christoph J.; Nazeeruddin, Mohammad Khaja; Garcia-Belmonte, Germà
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Título
Ionic Dipolar Switching Hinders Charge Collection in Perovskite Solar Cells with Normal and Inverted HysteresisAutoría
Fecha de publicación
2019-06-15Editor
ElsevierISSN
0927-0248; 1879-3398Cita bibliográfica
ALMORA, Osbel, et al. Ionic dipolar switching hinders charge collection in perovskite solar cells with normal and inverted hysteresis. Solar Energy Materials and Solar Cells, 2019, vol. 195, p. 291-298Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S0927024819301102Versión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
Drift-diffusion modeling of the ionic dipole switching from the measurement of fast
scanned and long pre-biased electrical response is proposed as a novel protocol for
evaluation of limit hysteretic effects in ... [+]
Drift-diffusion modeling of the ionic dipole switching from the measurement of fast
scanned and long pre-biased electrical response is proposed as a novel protocol for
evaluation of limit hysteretic effects in perovskite solar cells. Up to eight systems were
measured including CH3NH3PbI3, Cs0.1FA0.74MA0.13PbI2.48Br0.39 and
FA0.83MA0.17Pb1.1Br0.22I2.98 3D perovskite absorbers, as well as 2D capping layers
towards the selective contacts. We show systematic hysteretic patterns, even among
typical hysteresis-free devices, including normal and inverted hysteresis as general
dissimilar trend between CH3NH3PbI3 and mixed perovskite cells, respectively.
Particularly, strong changes in the short-circuit current density ( Jsc ) were identified, in
addition to different trends affecting the fill factor (FF) and the open-circuit voltage (Voc
). The changes in Jsc were analyzed with state-of-the-art numerical drift-diffusion
simulations concluding in an important reduction in the charge collection due to ionic
distribution switching depending on the pre-biasing protocol and the type of absorbing
perovskite. It is shown that mixed perovskites inhibit ionic dipolar switching. In
addition, our calculi signal on the required conditions for the occurrence of inverted
hysteresis and changes in the Voc . Regarding the FF and Voc patterns a new empirical
approach is introduced and corresponding interpretations are proposed. [-]
Publicado en
Solar Energy Materials and Solar Cells, 2019, vol. 195, p. 291-298Proyecto de investigación
We acknowledge funding from MINECO of Spain under project MAT2016-76892-C3- 1-R and MAT2016-76892-C3-3-R. O.A. acknowledges Generalitat Valenciana for the grant GRISOLIA/2014/035, the financial support from the VDI/VD Innovation + Technik GmbH (Project-title: PV-ZUM) and the SAOT funded by the German Research Foundation (DFG) in the framework of the German excellence initiative. We thank the Swiss National Funds for Scientific Research contract number 200020L_172929/1, Project “Tailored Design and in-depth understanding of perovskite solar materials using in-house developed 3D/4D nanoscale ion-beam analysis”. Borun New Material Technology generously supplied a high-quality spiro-OMeTAD. W.M. and E.G. gratefully acknowledge the financial support from the China Scholarship Council.Derechos de acceso
info:eu-repo/semantics/openAccess
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