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  <doc>
    <id>32928</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1017</pageFirst>
    <pageLast>1024</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>9</volume>
    <type>articler</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2024-02-27</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">MAPbCl3 Light Absorber for Highest Voltage Perovskite Solar Cells</title>
    <abstract language="eng">Perovskite solar cells (PSCs) excel in achieving high open-circuit voltages (VOC) for narrow bandgaps (∼1.6 eV) but face challenges with wide-bandgap perovskites, like methylammonium lead trichloride (MAPbCl3) with a 3.03 eV bandgap. These materials are transparent in visible absorbing ultraviolet (UV) light. However, achieving uniform film crystallization remains a hurdle. Here, we enhance MAPbCl3 crystallization by manipulating annealing atmospheres (nitrogen, air, and MACl vapor). Excess MACl vapor improves surface coverage, which is crucial for film stability. We demonstrate that the microstructure of the perovskite film, including surface morphology, grain boundaries, and interfaces, can affect the photovoltaic properties. The subsequently obtained VOC of 1.78 V is the highest recorded for single-junction PSCs to the best of our knowledge. Surprisingly, the conventional hole-transport layer spiro-OMeTAD, optimized for narrow bandgaps, sustains such high voltages. Photoluminescence measurements reveal a trap-assisted recombination peak at 1.65 eV, indicating deep traps as significant to voltage loss in MAPbCl3.</abstract>
    <parentTitle language="eng">ACS Energy Letters</parentTitle>
    <identifier type="issn">2380-8195</identifier>
    <identifier type="doi">10.1021/acsenergylett.3c02777</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</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>Waqas</firstName>
      <lastName>Zia</lastName>
    </author>
    <submitter>
      <firstName>Karsten</firstName>
      <lastName>Henkel</lastName>
    </submitter>
    <author>
      <firstName>Mahdi</firstName>
      <lastName>Malekshahi Byranvand</lastName>
    </author>
    <author>
      <firstName>Toby</firstName>
      <lastName>Rudolph</lastName>
    </author>
    <author>
      <firstName>Monika</firstName>
      <lastName>Rai</lastName>
    </author>
    <author>
      <firstName>Małgorzata</firstName>
      <lastName>Kot</lastName>
    </author>
    <author>
      <firstName>Chittaranjan</firstName>
      <lastName>Das</lastName>
    </author>
    <author>
      <firstName>Mayank</firstName>
      <lastName>Kedia</lastName>
    </author>
    <author>
      <firstName>Mohammadreza</firstName>
      <lastName>Zohdi</lastName>
    </author>
    <author>
      <firstName>Weiwei</firstName>
      <lastName>Zuo</lastName>
    </author>
    <author>
      <firstName>Vishal</firstName>
      <lastName>Yeddu</lastName>
    </author>
    <author>
      <firstName>Makhsud I.</firstName>
      <lastName>Saidaminov</lastName>
    </author>
    <author>
      <firstName>Jan Ingo</firstName>
      <lastName>Flege</lastName>
    </author>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Kirchartz</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>methylammonium lead trichloride (MAPbCl3)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>uniform film crystallization</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>manipulation of annealing atmospheres</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>trap-assisted recombination</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>microstructure</value>
    </subject>
    <collection role="institutes" number="1503">FG Angewandte Physik und Halbleiterspektroskopie</collection>
  </doc>
</export-example>
