<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>6742</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>articler</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2012-01-17</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Cliff-like conduction band offset and KCN-induced recombination barrier enhancement at the CdS/Cu2ZnSnS4 thin-film solar cell heterojunction</title>
    <abstract language="eng">The electronic structure of the CdS/Cu2ZnSnS4 (CZTS) heterojunction was investigated by direct and inverse photoemission. The effects of a KCN etch of the CZTS absorber prior to CdS deposition on the band alignment at the respective interface were studied. We find a “cliff”-like conduction band offset at the CdS/CZTS interface independent of absorber pretreatment and a significant etch-induced enhancement of the energetic barrier for charge carrier recombination across the CdS/CZTS interface.</abstract>
    <enrichment key="UBICOIdent">007926</enrichment>
    <enrichment key="UBICOquelle">Applied physics letters  99(2011)222105, 0003-6951</enrichment>
    <author>
      <firstName>Marcus</firstName>
      <lastName>Bär</lastName>
    </author>
    <submitter>
      <firstName>...</firstName>
      <lastName>Administrator</lastName>
    </submitter>
    <author>
      <firstName>Björn-Arvid</firstName>
      <lastName>Schubert</lastName>
    </author>
    <author>
      <firstName>Björn</firstName>
      <lastName>Marsen</lastName>
    </author>
    <author>
      <firstName>Regan G.</firstName>
      <lastName>Wilks</lastName>
    </author>
    <author>
      <firstName>Sujitra</firstName>
      <lastName>Pookpanratana</lastName>
    </author>
    <author>
      <firstName>Monika</firstName>
      <lastName>Blum</lastName>
    </author>
    <author>
      <firstName>Stefan</firstName>
      <lastName>Krause</lastName>
    </author>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Unold</lastName>
    </author>
    <author>
      <firstName>Wan Li</firstName>
      <lastName>Yang</lastName>
    </author>
    <author>
      <firstName>Lothar</firstName>
      <lastName>Weinhardt</lastName>
    </author>
    <author>
      <firstName>Clemens</firstName>
      <lastName>Heske</lastName>
    </author>
    <author>
      <firstName>Hans-Werner</firstName>
      <lastName>Schock</lastName>
    </author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>kesterite</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>thin-film solar cells</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>energy band alignment</value>
    </subject>
    <collection role="old_institute" number="01002">JP Photovoltaik</collection>
    <collection role="institutes" number="1523">JP Photovoltaik</collection>
  </doc>
  <doc>
    <id>9646</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1097</pageFirst>
    <pageLast>1104</pageLast>
    <pageNumber/>
    <edition/>
    <issue>8</issue>
    <volume>27</volume>
    <type>articler</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2013-10-10</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Cu2ZnSnS4 thin-film solar cell absorbers illuminated by soft x-rays</title>
    <abstract language="eng">In view of the complexity of thin-film solar cells, which are comprised of a multitude of layers, interfaces, surfaces, elements, impurities, etc., it is crucial to characterize and understand the&#13;
chemical and electronic structure of these components. Because of the high complexity of the Cu2ZnSn(S,Se)4 compound semiconductor absorber material alone, this is particularly true for kesterite-based devices. Hence, this paper reviews our recent progress in the characterization of Cu2ZnSnS4 (CZTS) thin films. It is demonstrated that a combination of different soft x-ray spectroscopies is an extraordinarily powerful method for illuminating the chemical and electronic material characteristics from many different perspectives, ultimately resulting in a comprehensive picture of these properties. The focus of the article will be on secondary impurity phases, electronic structure, native oxidation, and the CZTS surface composition.</abstract>
    <parentTitle language="eng">Journal of Materials Research</parentTitle>
    <identifier type="doi">10.1557/jmr.2012.59</identifier>
    <identifier type="issn">2044-5326</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <submitter>
      <firstName>Marcus</firstName>
      <lastName>Bär</lastName>
    </submitter>
    <author>
      <firstName>Marcus</firstName>
      <lastName>Bär</lastName>
    </author>
    <author>
      <firstName>Björn-Arvid</firstName>
      <lastName>Schubert</lastName>
    </author>
    <author>
      <firstName>Björn</firstName>
      <lastName>Marsen</lastName>
    </author>
    <author>
      <firstName>Regan G.</firstName>
      <lastName>Wilks</lastName>
    </author>
    <author>
      <firstName>M.</firstName>
      <lastName>Blum</lastName>
    </author>
    <author>
      <firstName>S.</firstName>
      <lastName>Krause</lastName>
    </author>
    <author>
      <firstName>Sujitra</firstName>
      <lastName>Pookpanratana</lastName>
    </author>
    <author>
      <firstName>Y.</firstName>
      <lastName>Zhang</lastName>
    </author>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Unold</lastName>
    </author>
    <author>
      <firstName>W.</firstName>
      <lastName>Yang</lastName>
    </author>
    <author>
      <firstName>Lothar</firstName>
      <lastName>Weinhardt</lastName>
    </author>
    <author>
      <firstName>Clemens</firstName>
      <lastName>Heske</lastName>
    </author>
    <author>
      <firstName>Hans-Werner</firstName>
      <lastName>Schock</lastName>
    </author>
    <collection role="old_institute" number="01002">JP Photovoltaik</collection>
    <collection role="institutes" number="1523">JP Photovoltaik</collection>
  </doc>
</export-example>
