ON CHARGE CARRIER DENSITY IN ORGANIC SOLAR CELLS OBTAINED VIA CAPACITANCE SPECTROSCOPY

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dc.contributor.authorVollbrecht, Joachim
dc.contributor.authorBrus, Viktor V.
dc.date.accessioned2021-07-09T07:48:37Z
dc.date.available2021-07-09T07:48:37Z
dc.date.issued2020-09
dc.description.abstractThe determination of the voltage-dependent density of free charge carriers via capacitance spectroscopy is considered an important step in the analysis of emerging photovoltaic technologies, such as organic and perovskite solar cells. In particular, an intimate knowledge of the density of free charge carriers is required for the determination of crucial parameters such as the effective mobility, charge carrier lifetime, nongeminate recombination coefficients, average extraction times, and competition factors. Hence, it is paramount to verify the validity of the commonly employed approaches to obtain the density of free charge carriers. The advantages, drawbacks, and limitations of the most common approaches are investigated in detail and strategies to mitigate misleading values are explored. To this end, two types of nonfullerene organic solar cells based on a PTB7-Th:ITIC-2F blend and a PM6:Y6 blend, respectively, are used as a case study to assess how subsequent analyses of the nongeminate recombination dynamics depend on the chosen approach to calculate the density of free charge carriers via capacitance spectroscopy.en_US
dc.identifier.citationVollbrecht, J., & Brus, V. V. (2020). On Charge Carrier Density in Organic Solar Cells Obtained via Capacitance Spectroscopy. Advanced Electronic Materials, 6(10), 2000517. https://doi.org/10.1002/aelm.202000517en_US
dc.identifier.issn2199-160X
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/5549
dc.language.isoenen_US
dc.publisherAdvanced Electronic Materialsen_US
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subjectType of access: Open Accessen_US
dc.subjectCapacitance Spectroscopyen_US
dc.subjectOrganic Solar Cellsen_US
dc.titleON CHARGE CARRIER DENSITY IN ORGANIC SOLAR CELLS OBTAINED VIA CAPACITANCE SPECTROSCOPYen_US
dc.typeArticleen_US
workflow.import.sourcescience

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