Atomic Scale Structure of (Ag,Cu)2ZnSnSe4 and Cu2Zn(Sn,Ge)Se4 Kesterite Thin Films
Kesterite based materials are being researched and developed as affordable, efficient, and mechanically flexible absorber materials for thin film photovoltaics. Both (Ag,Cu)2ZnSnSe4 and Cu2Zn(Sn,Ge)Se4 based devices have shown great potential in overcoming some of the remaining challenges for furthe...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-04-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2021.656006/full |
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| author | Konrad Ritter Konrad Ritter Galina Gurieva Stefanie Eckner Stefanie Eckner Cora Preiß Maurizio Ritzer Charles J. Hages Edmund Welter Rakesh Agrawal Susan Schorr Susan Schorr Claudia S. Schnohr Claudia S. Schnohr |
| author_facet | Konrad Ritter Konrad Ritter Galina Gurieva Stefanie Eckner Stefanie Eckner Cora Preiß Maurizio Ritzer Charles J. Hages Edmund Welter Rakesh Agrawal Susan Schorr Susan Schorr Claudia S. Schnohr Claudia S. Schnohr |
| author_sort | Konrad Ritter |
| collection | DOAJ |
| description | Kesterite based materials are being researched and developed as affordable, efficient, and mechanically flexible absorber materials for thin film photovoltaics. Both (Ag,Cu)2ZnSnSe4 and Cu2Zn(Sn,Ge)Se4 based devices have shown great potential in overcoming some of the remaining challenges for further increasing the conversion efficiency of kesterite based solar cells. This study therefore investigates the long range crystallographic structure and the local atomic scale structure of technologically relevant thin films by means of grazing incidence X-ray diffraction and low temperature X-ray absorption spectroscopy. As expected, the unit cell dimensions change about an order of magnitude more than the element specific average bond lengths. In case of Cu2Zn(Sn,Ge)Se4, the thin film absorbers show a very similar behavior as Cu2Zn(Sn,Ge)Se4 powder samples previously studied. Small amounts of residual S in the thin films were taken into account in the analysis and the results imply a preferential formation of Sn-S bonds instead of Ge-S bonds. In (Ag,Cu)2ZnSnSe4, the dependence of the Ag-Se and Cu-Se bond lengths on Ag/(Ag+Cu) might indicate an energetic advantage in the formation of certain local configurations. |
| first_indexed | 2024-12-20T10:58:03Z |
| format | Article |
| id | doaj.art-3d5688e657cd4d56ba94c0a28c8b831a |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-12-20T10:58:03Z |
| publishDate | 2021-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-3d5688e657cd4d56ba94c0a28c8b831a2022-12-21T19:43:05ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2021-04-01910.3389/fenrg.2021.656006656006Atomic Scale Structure of (Ag,Cu)2ZnSnSe4 and Cu2Zn(Sn,Ge)Se4 Kesterite Thin FilmsKonrad Ritter0Konrad Ritter1Galina Gurieva2Stefanie Eckner3Stefanie Eckner4Cora Preiß5Maurizio Ritzer6Charles J. Hages7Edmund Welter8Rakesh Agrawal9Susan Schorr10Susan Schorr11Claudia S. Schnohr12Claudia S. Schnohr13Felix-Bloch-Institut für Festkörperphysik, Universität Leipzig, Leipzig, GermanyInstitut für Festkörperphysik, Friedrich-Schiller-Universität, Jena, GermanyHelmholtz-Zentrum Berlin für Materialien und Energie, Berlin, GermanyFelix-Bloch-Institut für Festkörperphysik, Universität Leipzig, Leipzig, GermanyInstitut für Festkörperphysik, Friedrich-Schiller-Universität, Jena, GermanyInstitut für Festkörperphysik, Friedrich-Schiller-Universität, Jena, GermanyInstitut für Festkörperphysik, Friedrich-Schiller-Universität, Jena, GermanyDepartment of Chemical Engineering, University of Florida, Gainesville, FL, United StatesDeutsches Elektronen-Synchrotron DESY−A Research Centre of the Helmholtz Association, Hamburg, GermanyDavidson School of Chemical Engineering, Purdue University, West Lafayette, IN, United StatesHelmholtz-Zentrum Berlin für Materialien und Energie, Berlin, GermanyInstitut für Geologische Wissenschaften, Freie Universität Berlin, Berlin, GermanyFelix-Bloch-Institut für Festkörperphysik, Universität Leipzig, Leipzig, GermanyInstitut für Festkörperphysik, Friedrich-Schiller-Universität, Jena, GermanyKesterite based materials are being researched and developed as affordable, efficient, and mechanically flexible absorber materials for thin film photovoltaics. Both (Ag,Cu)2ZnSnSe4 and Cu2Zn(Sn,Ge)Se4 based devices have shown great potential in overcoming some of the remaining challenges for further increasing the conversion efficiency of kesterite based solar cells. This study therefore investigates the long range crystallographic structure and the local atomic scale structure of technologically relevant thin films by means of grazing incidence X-ray diffraction and low temperature X-ray absorption spectroscopy. As expected, the unit cell dimensions change about an order of magnitude more than the element specific average bond lengths. In case of Cu2Zn(Sn,Ge)Se4, the thin film absorbers show a very similar behavior as Cu2Zn(Sn,Ge)Se4 powder samples previously studied. Small amounts of residual S in the thin films were taken into account in the analysis and the results imply a preferential formation of Sn-S bonds instead of Ge-S bonds. In (Ag,Cu)2ZnSnSe4, the dependence of the Ag-Se and Cu-Se bond lengths on Ag/(Ag+Cu) might indicate an energetic advantage in the formation of certain local configurations.https://www.frontiersin.org/articles/10.3389/fenrg.2021.656006/fullkesteriteCZTGSeACZTSethin filmsalloysEXAFS |
| spellingShingle | Konrad Ritter Konrad Ritter Galina Gurieva Stefanie Eckner Stefanie Eckner Cora Preiß Maurizio Ritzer Charles J. Hages Edmund Welter Rakesh Agrawal Susan Schorr Susan Schorr Claudia S. Schnohr Claudia S. Schnohr Atomic Scale Structure of (Ag,Cu)2ZnSnSe4 and Cu2Zn(Sn,Ge)Se4 Kesterite Thin Films Frontiers in Energy Research kesterite CZTGSe ACZTSe thin films alloys EXAFS |
| title | Atomic Scale Structure of (Ag,Cu)2ZnSnSe4 and Cu2Zn(Sn,Ge)Se4 Kesterite Thin Films |
| title_full | Atomic Scale Structure of (Ag,Cu)2ZnSnSe4 and Cu2Zn(Sn,Ge)Se4 Kesterite Thin Films |
| title_fullStr | Atomic Scale Structure of (Ag,Cu)2ZnSnSe4 and Cu2Zn(Sn,Ge)Se4 Kesterite Thin Films |
| title_full_unstemmed | Atomic Scale Structure of (Ag,Cu)2ZnSnSe4 and Cu2Zn(Sn,Ge)Se4 Kesterite Thin Films |
| title_short | Atomic Scale Structure of (Ag,Cu)2ZnSnSe4 and Cu2Zn(Sn,Ge)Se4 Kesterite Thin Films |
| title_sort | atomic scale structure of ag cu 2znsnse4 and cu2zn sn ge se4 kesterite thin films |
| topic | kesterite CZTGSe ACZTSe thin films alloys EXAFS |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2021.656006/full |
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