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Photoluminescence Lifetimes Exceeding 8 μs and Quantum Yields Exceeding 30% in Hybrid Perovskite Thin Films by Ligand Passivation

Photoluminescence Lifetimes Exceeding 8 μs and Quantum Yields Exceeding 30% in Hybrid Perovskite Thin Films by Ligand Passivation

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DEQUILETTES, Dane W., Susanne KOCH, Sven BURKE, Rajan K. PARANJI, Alfred J. SHROPSHIRE, Mark E. ZIFFER, David S. GINGER, 2016. Photoluminescence Lifetimes Exceeding 8 μs and Quantum Yields Exceeding 30% in Hybrid Perovskite Thin Films by Ligand Passivation. In: ACS Energy Letters. 1(2), pp. 438-444. eISSN 2380-8195

@article{deQuilettes2016-08-12Photo-39915, title={Photoluminescence Lifetimes Exceeding 8 μs and Quantum Yields Exceeding 30% in Hybrid Perovskite Thin Films by Ligand Passivation}, year={2016}, doi={10.1021/acsenergylett.6b00236}, number={2}, volume={1}, journal={ACS Energy Letters}, pages={438--444}, author={deQuilettes, Dane W. and Koch, Susanne and Burke, Sven and Paranji, Rajan K. and Shropshire, Alfred J. and Ziffer, Mark E. and Ginger, David S.} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/39915"> <dc:creator>Paranji, Rajan K.</dc:creator> <dc:creator>Ziffer, Mark E.</dc:creator> <dc:contributor>Burke, Sven</dc:contributor> <dc:contributor>Ziffer, Mark E.</dc:contributor> <dc:contributor>Koch, Susanne</dc:contributor> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/39915"/> <dc:contributor>Shropshire, Alfred J.</dc:contributor> <dcterms:rights rdf:resource="http://nbn-resolving.de/urn:nbn:de:bsz:352-20150914100631302-4485392-8"/> <dc:language>eng</dc:language> <dc:creator>Shropshire, Alfred J.</dc:creator> <dc:contributor>Paranji, Rajan K.</dc:contributor> <dcterms:issued>2016-08-12</dcterms:issued> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-08-21T08:51:28Z</dc:date> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-08-21T08:51:28Z</dcterms:available> <dc:creator>Burke, Sven</dc:creator> <dc:creator>Koch, Susanne</dc:creator> <dc:contributor>Ginger, David S.</dc:contributor> <dcterms:abstract xml:lang="eng">We study the effects of a series of post-deposition ligand treatments on the photoluminescence (PL) of polycrystalline methylammonium lead triiodide perovskite thin films. We show that a variety of Lewis bases can improve the bulk PL quantum efficiency (PLQE) and extend the average PL lifetime, ⟨τ⟩, with large enhancements concentrated at grain boundaries. Notably, we demonstrate thin-film PLQE as high as 35 ± 1% and ⟨τ⟩ as long as 8.82 ± 0.03 μs at solar equivalent carrier densities using tri-n-octylphosphine oxide-treated films. Using glow discharge optical emission spectroscopy and nuclear magnetic resonance spectroscopy, we show that the ligands are incorporated primarily at the film surface and are acting as electron donors. These results indicate it is possible to obtain thin-film PL lifetime and PLQE values that are comparable to those from single crystals by control over surface chemistry.</dcterms:abstract> <dc:creator>deQuilettes, Dane W.</dc:creator> <dc:contributor>deQuilettes, Dane W.</dc:contributor> <dcterms:title>Photoluminescence Lifetimes Exceeding 8 μs and Quantum Yields Exceeding 30% in Hybrid Perovskite Thin Films by Ligand Passivation</dcterms:title> <dc:creator>Ginger, David S.</dc:creator> </rdf:Description> </rdf:RDF>

Dateiabrufe seit 21.08.2017 (Informationen über die Zugriffsstatistik)

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