Capacitive Dark Currents, Hysteresis, and Electrode Polarization in Lead Halide Perovskite Solar Cells

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Almora Rodriguez O, Zarazua I, Mas-Marza E, Mora-Sero I, Bisquert J, Garcia-Belmonte G
Zeitschrift: Journal of Physical Chemistry Letters
Jahr der Veröffentlichung: 2015
Band: 6
Heftnummer: 9
Seitenbereich: 1645-1652
ISSN: 1948-7185


Abstract

Despite spectacular advances in the conversion efficiency of perovskite solar cells many aspects of its operating modes are still poorly understood. Capacitance constituted to explore which mechanisms and functions. Analyzing capacitive responses in the device but also the kinetics of the charging processes and how they alter the solar cell current. Two main polarization processes are identified. Dielectric properties of the microscopic dipolar units through the orthorhombic-to-tetragonal phase transition account. Electrode polarization caused by interfacial effects, presumably related to kinetically slowness piled up in the vicinity of the outer interfaces, consistently explain the reported excess capacitance values ​​at low frequencies. In addition, current-voltage curves and capacitive responses of perovskite-based solar cells are connected. The observed hysteretic effect in the dark current originates from the slow capacitive mechanisms.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Almora Rodriguez, Osbel
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)


Einrichtungen weiterer Autorinnen und Autoren

Universitat Jaume I (UJI)


Zitierweisen

APA:
Almora Rodriguez, O., Zarazua, I., Mas-Marza, E., Mora-Sero, I., Bisquert, J., & Garcia-Belmonte, G. (2015). Capacitive Dark Currents, Hysteresis, and Electrode Polarization in Lead Halide Perovskite Solar Cells. Journal of Physical Chemistry Letters, 6(9), 1645-1652. https://dx.doi.org/10.1021/acs.jpclett.5b00480

MLA:
Almora Rodriguez, Osbel, et al. "Capacitive Dark Currents, Hysteresis, and Electrode Polarization in Lead Halide Perovskite Solar Cells." Journal of Physical Chemistry Letters 6.9 (2015): 1645-1652.

BibTeX: 

Zuletzt aktualisiert 2019-01-01 um 13:50