Direct Observation and Quantitative Analysis of Mobile Frenkel Defects in Metal Halide Perovskites Using Scanning Kelvin Probe Microscopy

No Thumbnail Available
Files
There are no files associated with this item.
Date
2018
Authors
Precht, Jake T.
Giridharagopal, Rajiv
Eperon, Giles E.
Ginger, David S.
Editors
Contact
Journal ISSN
Electronic ISSN
ISBN
Bibliographical data
Publisher
Series
URI (citable link)
DOI (citable link)
ArXiv-ID
International patent number
Link to the license
oops
EU project number
Project
Open Access publication
Collections
Restricted until
Title in another language
Research Projects
Organizational Units
Journal Issue
Publication type
Journal article
Publication status
Published
Published in
The Journal of Physical Chemistry C ; 122 (2018), 24. - pp. 12633-12639. - ISSN 1932-7447. - eISSN 1932-7455
Abstract
Ion migration is seen as a primary stability concern of halide perovskite-based photovoltaic and optoelectronic devices. Here, we provide experimental studies of long-distance, reversible ion migration in methylammonium lead iodide (MAPbI3) and formamidinium lead iodide (FAPbI3) films. We use time-resolved scanning Kelvin probe microscopy on insulator-coated lateral electrodes to probe the dynamic redistribution of charged Frenkel defects over micrometer distances after application of an electric field. We combine these dynamic measurements with drift–diffusion simulations that yield self-consistent pictures of the sign, distribution, mobility, and activation energy of the associated, mobile Frenkel defects. This comprehensive approach is applied to study the impact of an organic cation on ionic mobility in metal halide perovskites, which we find to be significantly reduced in the case of FAPbI3 films compared to MAPbI3 films.
Summary in another language
Subject (DDC)
530 Physics
Keywords
Conference
Review
undefined / . - undefined, undefined. - (undefined; undefined)
Cite This
ISO 690BIRKHOLD, Susanne T., Jake T. PRECHT, Rajiv GIRIDHARAGOPAL, Giles E. EPERON, Lukas SCHMIDT-MENDE, David S. GINGER, 2018. Direct Observation and Quantitative Analysis of Mobile Frenkel Defects in Metal Halide Perovskites Using Scanning Kelvin Probe Microscopy. In: The Journal of Physical Chemistry C. 122(24), pp. 12633-12639. ISSN 1932-7447. eISSN 1932-7455. Available under: doi: 10.1021/acs.jpcc.8b03255
BibTex
@article{Birkhold2018-06-21Direc-42767,
  year={2018},
  doi={10.1021/acs.jpcc.8b03255},
  title={Direct Observation and Quantitative Analysis of Mobile Frenkel Defects in Metal Halide Perovskites Using Scanning Kelvin Probe Microscopy},
  number={24},
  volume={122},
  issn={1932-7447},
  journal={The Journal of Physical Chemistry C},
  pages={12633--12639},
  author={Birkhold, Susanne T. and Precht, Jake T. and Giridharagopal, Rajiv and Eperon, Giles E. and Schmidt-Mende, Lukas and Ginger, David S.}
}
RDF
<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/server/rdf/resource/123456789/42767">
    <dc:creator>Giridharagopal, Rajiv</dc:creator>
    <dc:creator>Ginger, David S.</dc:creator>
    <dcterms:abstract xml:lang="eng">Ion migration is seen as a primary stability concern of halide perovskite-based photovoltaic and optoelectronic devices. Here, we provide experimental studies of long-distance, reversible ion migration in methylammonium lead iodide (MAPbI&lt;sub&gt;3&lt;/sub&gt;) and formamidinium lead iodide (FAPbI&lt;sub&gt;3&lt;/sub&gt;) films. We use time-resolved scanning Kelvin probe microscopy on insulator-coated lateral electrodes to probe the dynamic redistribution of charged Frenkel defects over micrometer distances after application of an electric field. We combine these dynamic measurements with drift–diffusion simulations that yield self-consistent pictures of the sign, distribution, mobility, and activation energy of the associated, mobile Frenkel defects. This comprehensive approach is applied to study the impact of an organic cation on ionic mobility in metal halide perovskites, which we find to be significantly reduced in the case of FAPbI&lt;sub&gt;3&lt;/sub&gt; films compared to MAPbI&lt;sub&gt;3&lt;/sub&gt; films.</dcterms:abstract>
    <dc:contributor>Giridharagopal, Rajiv</dc:contributor>
    <dc:creator>Eperon, Giles E.</dc:creator>
    <dc:language>eng</dc:language>
    <dc:contributor>Birkhold, Susanne T.</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Birkhold, Susanne T.</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Ginger, David S.</dc:contributor>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-07-04T13:29:40Z</dcterms:available>
    <dc:creator>Precht, Jake T.</dc:creator>
    <dc:contributor>Schmidt-Mende, Lukas</dc:contributor>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/42767"/>
    <dcterms:title>Direct Observation and Quantitative Analysis of Mobile Frenkel Defects in Metal Halide Perovskites Using Scanning Kelvin Probe Microscopy</dcterms:title>
    <dc:creator>Schmidt-Mende, Lukas</dc:creator>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-07-04T13:29:40Z</dc:date>
    <dc:contributor>Eperon, Giles E.</dc:contributor>
    <dc:contributor>Precht, Jake T.</dc:contributor>
    <dcterms:issued>2018-06-21</dcterms:issued>
  </rdf:Description>
</rdf:RDF>
Internal note
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Contact
URL of original publication
Test date of URL
Examination date of dissertation
Method of financing
Comment on publication
Alliance license
Corresponding Authors der Uni Konstanz vorhanden
International Co-Authors
Bibliography of Konstanz
Yes
Refereed
Yes