On Mott-Schottky Analysis Interpretation of Capacitance Measurements in Organometal Perovskite Solar Cells

Almora Rodriguez O, Aranda C, Mas-Marza E, Garcia-Belmonte G (2016)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2016

Journal

Applied Physics Letters American Institute of Physics (AIP)

Book Volume: 109

Pages Range: 173903

Journal Issue: 17

URI: http://scitation.aip.org/content/aip/journal/apl/109/17/10.1063/1.4966127

DOI: 10.1063/1.4966127

Abstract

Capacitance response of perovskite-based solar cells (PSCs) can be exploited to underlying physical mechanisms, both in bulk and at outer interfaces. Especially interesting is the use of the depletion layer capacitance theory to PSCs, following common procedures used with inorganic and organic photovoltaic devices. Voltage modulation of the depletion layer allows extracting relevant parameters as the absorber defect density and built-in potential by means of the Mott-Schottky (MS) analysis. However, the uncritical use of the MS technique, commonly observed in PSCs, produces on the measured capacitance value. Avoiding accumulation capacitive parasitic contributions. It is noted that the distinction of capacitance is only feasible in the case of perovskite layers containing significant defect density (~1017 cm-3). It is confirmed that MS is reproducible by hysteresis reduction at slow scan rates, and positive bias starting polarization. A complete procedure with specific checking points is provided here for consistent MS measurement and interpretation.

Authors with CRIS profile

Osbel Almora Rodriguez Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

Universitat Jaume I (UJI) ES Spain (ES)

How to cite

APA:

Almora Rodriguez, O., Aranda, C., Mas-Marza, E., & Garcia-Belmonte, G. (2016). On Mott-Schottky Analysis Interpretation of Capacitance Measurements in Organometal Perovskite Solar Cells. Applied Physics Letters, 109(17), 173903. https://dx.doi.org/10.1063/1.4966127

MLA:

Almora Rodriguez, Osbel, et al. "On Mott-Schottky Analysis Interpretation of Capacitance Measurements in Organometal Perovskite Solar Cells." Applied Physics Letters 109.17 (2016): 173903.

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