Ethylenediamine Vapors‐Assisted Surface Passivation of Perovskite Films for Efficient Inverted Solar Cells

No Thumbnail Available
Files
There are no files associated with this item.
Date
2023
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
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
Solar RRL ; 2023. - Wiley. - eISSN 2367-198X
Abstract
Defects present at the surface or within the bulk of halide perovskites act as a barrier to charge transfer/transport, induce nonradiative recombination thereby limit open-circuit voltage (VOC), and accelerate degradation in the perovskite solar cells (PSCs). Passivation of these defects at surfaces, interfaces, and grain boundaries to suppress the charge recombination is therefore imperative to improving photovoltaic performance in the PSCs. Herein, a facile posttreatment of perovskite surface by ethylenediamine (EDA) via mixed solvent vapor annealing method is reported. The results show that only a trace amount of EDA causes significant suppression of nonradiative recombination leading to over 100 mV increased VOC and ≈22% improvement in power conversion efficiency (PCE) of the inverted PSCs. The key reasons for this improvement are an upward shift in the Fermi energy level, reduced lattice strain and Urbach energy, and reduction in nonradiative recombination upon EDA passivation. These lead to a PCE exceeding 20% up from 16% for a nonpassivated film. The unencapsulated EDA-modified PSCs also demonstrate an improved shelf-life and retain 87% of the initial PCE after 850 h.
Summary in another language
Subject (DDC)
530 Physics
Keywords
charge carrier lifetime,defects,perovskite films,stability,vapor treatment,work functions
Conference
Review
undefined / . - undefined, undefined. - (undefined; undefined)
Cite This
ISO 690HAIDER, Muhammad Irfan, Hao HU, Tobias SEEWALD, Safeer AHMED, Muhammad SULTAN, Lukas SCHMIDT-MENDE, Azhar FAKHARUDDIN, 2023. Ethylenediamine Vapors‐Assisted Surface Passivation of Perovskite Films for Efficient Inverted Solar Cells. In: Solar RRL. Wiley. eISSN 2367-198X. Available under: doi: 10.1002/solr.202201092
BibTex
@article{Haider2023Ethyl-66412,
  year={2023},
  doi={10.1002/solr.202201092},
  title={Ethylenediamine Vapors‐Assisted Surface Passivation of Perovskite Films for Efficient Inverted Solar Cells},
  journal={Solar RRL},
  author={Haider, Muhammad Irfan and Hu, Hao and Seewald, Tobias and Ahmed, Safeer and Sultan, Muhammad and Schmidt-Mende, Lukas and Fakharuddin, Azhar}
}
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/123456789/66412">
    <dc:contributor>Schmidt-Mende, Lukas</dc:contributor>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/66412"/>
    <dcterms:issued>2023</dcterms:issued>
    <dc:creator>Hu, Hao</dc:creator>
    <dc:language>eng</dc:language>
    <dc:creator>Haider, Muhammad Irfan</dc:creator>
    <dc:creator>Sultan, Muhammad</dc:creator>
    <dcterms:title>Ethylenediamine Vapors‐Assisted Surface Passivation of Perovskite Films for Efficient Inverted Solar Cells</dcterms:title>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:creator>Fakharuddin, Azhar</dc:creator>
    <dc:contributor>Haider, Muhammad Irfan</dc:contributor>
    <dc:contributor>Fakharuddin, Azhar</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2023-03-14T14:26:05Z</dcterms:available>
    <dc:rights>Attribution 4.0 International</dc:rights>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by/4.0/"/>
    <dc:creator>Ahmed, Safeer</dc:creator>
    <dc:contributor>Sultan, Muhammad</dc:contributor>
    <dc:creator>Seewald, Tobias</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:contributor>Seewald, Tobias</dc:contributor>
    <dc:creator>Schmidt-Mende, Lukas</dc:creator>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:contributor>Hu, Hao</dc:contributor>
    <dc:contributor>Ahmed, Safeer</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2023-03-14T14:26:05Z</dc:date>
    <dcterms:abstract>Defects present at the surface or within the bulk of halide perovskites act as a barrier to charge transfer/transport, induce nonradiative recombination thereby limit open-circuit voltage (VOC), and accelerate degradation in the perovskite solar cells (PSCs). Passivation of these defects at surfaces, interfaces, and grain boundaries to suppress the charge recombination is therefore imperative to improving photovoltaic performance in the PSCs. Herein, a facile posttreatment of perovskite surface by ethylenediamine (EDA) via mixed solvent vapor annealing method is reported. The results show that only a trace amount of EDA causes significant suppression of nonradiative recombination leading to over 100 mV increased VOC and ≈22% improvement in power conversion efficiency (PCE) of the inverted PSCs. The key reasons for this improvement are an upward shift in the Fermi energy level, reduced lattice strain and Urbach energy, and reduction in nonradiative recombination upon EDA passivation. These lead to a PCE exceeding 20% up from 16% for a nonpassivated film. The unencapsulated EDA-modified PSCs also demonstrate an improved shelf-life and retain 87% of the initial PCE after 850 h.</dcterms:abstract>
  </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
Refereed
Unknown
Online First: Journal articles that are published online before they appear as an actual part of a journal issue. Online first articles are published on the journal's website in the publisher's version.