Type of Publication: | Journal article |
Publication status: | Published |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-0-417743 |
Author: | deQuilettes, Dane W.; Koch, Susanne; Burke, Sven; Paranji, Rajan K.; Shropshire, Alfred J.; Ziffer, Mark E.; Ginger, David S. |
Year of publication: | 2016 |
Published in: | ACS Energy Letters ; 1 (2016), 2. - pp. 438-444. - eISSN 2380-8195 |
DOI (citable link): | https://dx.doi.org/10.1021/acsenergylett.6b00236 |
Summary: |
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.
|
Subject (DDC): | 530 Physics |
Link to License: | In Copyright |
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. Available under: doi: 10.1021/acsenergylett.6b00236
@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:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" 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:contributor>Burke, Sven</dc:contributor> <dc:creator>Ziffer, Mark E.</dc:creator> <dc:contributor>Koch, Susanne</dc:contributor> <dc:contributor>Ziffer, Mark E.</dc:contributor> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/39915"/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:contributor>Shropshire, Alfred J.</dc:contributor> <dc:rights>terms-of-use</dc:rights> <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> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/39915/1/deQuilettes_0-417743.pdf"/> <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> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dc:creator>Burke, Sven</dc:creator> <dc:creator>Koch, Susanne</dc:creator> <dc:contributor>Ginger, David S.</dc:contributor> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/39915/1/deQuilettes_0-417743.pdf"/> <dc:contributor>deQuilettes, Dane W.</dc:contributor> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <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> <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/> <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>
deQuilettes_0-417743.pdf | 351 |