Ionic Dipolar Switching Hinders Charge Collection in Perovskite Solar Cells with Normal and Inverted Hysteresis

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Almora Rodriguez O, Lopez-varo P, Cho KT, Aghazada S, Meng W, Hou Y, Echeverria-Arrondo C, Zimmermann I, Matt GJ, Jiménez-Tejada JA, Brabec C, Nazeeruddin MK, Garcia-Belmonte G
Zeitschrift: Solar Energy Materials and Solar Cells
Jahr der Veröffentlichung: 2019
Band: 195
Seitenbereich: 291-298
ISSN: 0927-0248
Sprache: Englisch


Abstract

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. 


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Almora Rodriguez, Osbel
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Brabec, Christoph Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Hou, Yi
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Meng, Wei
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)


Zusätzliche Organisationseinheit(en)
Erlangen Graduate School in Advanced Optical Technologies


Einrichtungen weiterer Autorinnen und Autoren

École Polytechnique Fédérale de Lausanne (EPFL)
Universidad de Granada
Universitat Jaume I (UJI)


Zitierweisen

APA:
Almora Rodriguez, O., Lopez-varo, P., Cho, K.T., Aghazada, S., Meng, W., Hou, Y.,... Garcia-Belmonte, G. (2019). Ionic Dipolar Switching Hinders Charge Collection in Perovskite Solar Cells with Normal and Inverted Hysteresis. Solar Energy Materials and Solar Cells, 195, 291-298. https://dx.doi.org/10.1016/j.solmat.2019.03.003

MLA:
Almora Rodriguez, Osbel, et al. "Ionic Dipolar Switching Hinders Charge Collection in Perovskite Solar Cells with Normal and Inverted Hysteresis." Solar Energy Materials and Solar Cells 195 (2019): 291-298.

BibTeX: 

Zuletzt aktualisiert 2019-04-06 um 07:56