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Energetic Barriers to Interfacial Charge Transfer and Ion Movement in Perovskite Solar Cells
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.ORCID iD: 0000-0001-5069-3245
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.ORCID iD: 0000-0002-0387-2993‚Äč
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2017 (English)In: ChemPhysChem, ISSN 1439-4235, E-ISSN 1439-7641, Vol. 18, no 21, p. 3047-3055Article in journal (Refereed) Published
Abstract [en]

Highly efficient perovskite solar cells have been characterized by current-density/voltage measurements in the dark at varied scan rates. The results were compared to the solar cells without a hole-transporting layer to investigate the role of ultrathin hole-transporting layers in solar-cell function. The parameters of internal voltage, diode ideality factor, capacitive current, and capacitance were calculated from the current-density/voltage response of the cells in the dark. The results show that the absence of the hole-transporting layer can cause a large recombination current within the depletion region at the gold contact/perovskite interface, and thus affects the cell performance.

Place, publisher, year, edition, pages
WILEY-V C H VERLAG GMBH , 2017. Vol. 18, no 21, p. 3047-3055
Keywords [en]
capacitance, diode ideality, interfacial charge transfer, ion movement, perovskite solar cells
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-217936DOI: 10.1002/cphc.201700740ISI: 000414406400013PubMedID: 28840632Scopus ID: 2-s2.0-85030154725OAI: oai:DiVA.org:kth-217936DiVA, id: diva2:1158851
Note

QC 20171121

Available from: 2017-11-21 Created: 2017-11-21 Last updated: 2018-04-26Bibliographically approved

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Liu, PengGardner, James M.

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