<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>30920</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2603</pageFirst>
    <pageLast>2610</pageLast>
    <pageNumber>8</pageNumber>
    <edition/>
    <issue/>
    <volume>8</volume>
    <type>articler</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2023-05-15</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Light Makes Right: Laser Polishing for Surface Modification of Perovskite Solar Cells</title>
    <abstract language="eng">Interface engineering is a common strategy for passivating surface defects to attain open circuit voltages (Voc) in perovskite solar cells (PSCs). In this work, we introduce the concept of polishing a perovskite thin-film surface using a nanosecond (ns) pulsed ultraviolet laser to reduce surface defects, such as dangling bonds, undesirable phases, and suboptimal stoichiometry. A careful control of laser energy and scanning speed improves the photophysical properties of the surface without compromising the thickness. Using laser polishing, a Voc of 1.21 V is achieved for planar PSCs with a triple cation composition, showing an improved perovskite/hole transport interface by mitigating surface recombination losses. We measure an efficiency boost from 18.0% to 19.3% with improved stability of up to 1000 h. The results open the door to a new class of surface modification using lasers for interface passivation in well-controllable, automated, scalable, and solvent-free surface treatments.</abstract>
    <parentTitle language="eng">ACS Energy Letters</parentTitle>
    <identifier type="issn">2380-8195</identifier>
    <identifier type="doi">10.1021/acsenergylett.3c00469</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <enrichment key="RelationnotEU">KK5087602BR1</enrichment>
    <enrichment key="BTUfunderNamenotEU">Bundesministerium für Wirtschaft und Klimaschutz der Bundesrepublik Deutschland (BMWK) ZIM</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">false</enrichment>
    <enrichment key="Fprofil">1 Energiewende und Dekarbonisierung / Energy Transition and Decarbonisation</enrichment>
    <enrichment key="Fprofil">4 Künstliche Intelligenz und Sensorik / Artificial Intelligence and Sensor Technology</enrichment>
    <author>
      <firstName>Mayank</firstName>
      <lastName>Kedia</lastName>
    </author>
    <submitter>
      <firstName>Karsten</firstName>
      <lastName>Henkel</lastName>
    </submitter>
    <author>
      <firstName>Monika</firstName>
      <lastName>Rai</lastName>
    </author>
    <author>
      <firstName>Himanshu</firstName>
      <lastName>Phirke</lastName>
    </author>
    <author>
      <firstName>Clara A.</firstName>
      <lastName>Aranda</lastName>
    </author>
    <author>
      <firstName>Chittaranjan</firstName>
      <lastName>Das</lastName>
    </author>
    <author>
      <firstName>Vladimir</firstName>
      <lastName>Chirvony</lastName>
    </author>
    <author>
      <firstName>Stephan</firstName>
      <lastName>Boehringer</lastName>
    </author>
    <author>
      <firstName>Małgorzata</firstName>
      <lastName>Kot</lastName>
    </author>
    <author>
      <firstName>Mahdi</firstName>
      <lastName>Malekshahi Byranvand</lastName>
    </author>
    <author>
      <firstName>Jan Ingo</firstName>
      <lastName>Flege</lastName>
    </author>
    <author>
      <firstName>Alex</firstName>
      <lastName>Redinger</lastName>
    </author>
    <author>
      <firstName>Michael</firstName>
      <lastName>Saliba</lastName>
    </author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Perovskite solar cells</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>laser polishing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>perovskite/hole transport interface</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>surface defects</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>recombination losses</value>
    </subject>
    <collection role="institutes" number="1503">FG Angewandte Physik und Halbleiterspektroskopie</collection>
  </doc>
</export-example>
