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Chemical Gradients in Cu(In,Ga)(S,Se)2 Thin-Film Solar Cells: Results of the GRACIS Project

Witte, W. ; Powalla, M. ; Hariskos, D. ; Eicke, A. ; Botros, M. ; Schock, H.-W. ; Abou-Ras, D. ; Mainz, R. ; Rodríguez-Alvarez, H. ; Unold, T. ; Bauer, G. H. ; Brüggemann, R. ; Heise, S. J. ; Neumann, O. ; Meessen, M. ; Christen, J. ; Bertram, F. ; Klein, Andreas ; Adler, T. ; Albe, K. ; Pohl, J. ; Martin, M. ; De Souza, Roger A. ; Nagarajan, L. ; Beckers, T. ; Boit, C. ; Dietrich, J. ; Hetterich, M. ; Zhang, Z. ; Scheer, R. ; Kempa, H. ; Orgis, T. (2013)
Chemical Gradients in Cu(In,Ga)(S,Se)2 Thin-Film Solar Cells: Results of the GRACIS Project.
doi: 10.4229/27thEUPVSEC2012-3BO.4.1
Article, Bibliographie

Abstract

The German joint research project “Chemical Gradients in Cu(In,Ga)(S,Se)2” (GRACIS) is an initiative to gain a better physical understanding concerning the formation of chemical gradients in the Cu(In,Ga)(S,Se)2 (CIGS) absorber layers and at the CIGS/buffer interface. This article presents the current status of the GRACIS project after three years of execution with results concerning phase formation during chalcogenization and coevaporation processes, influence of Ga grading on structural and electrical parameters as well as on inhomogeneities on the μm scale of CIGS. Special features of the CIGS/Zn(O,S) buffer interface are discussed and compared to CIGS solar cells with CdS buffer. In addition, our experimental results are supported by 3D simulations and calculations using screened-exchanged hybrid density functional theory.

Item Type: Article
Erschienen: 2013
Creators: Witte, W. ; Powalla, M. ; Hariskos, D. ; Eicke, A. ; Botros, M. ; Schock, H.-W. ; Abou-Ras, D. ; Mainz, R. ; Rodríguez-Alvarez, H. ; Unold, T. ; Bauer, G. H. ; Brüggemann, R. ; Heise, S. J. ; Neumann, O. ; Meessen, M. ; Christen, J. ; Bertram, F. ; Klein, Andreas ; Adler, T. ; Albe, K. ; Pohl, J. ; Martin, M. ; De Souza, Roger A. ; Nagarajan, L. ; Beckers, T. ; Boit, C. ; Dietrich, J. ; Hetterich, M. ; Zhang, Z. ; Scheer, R. ; Kempa, H. ; Orgis, T.
Type of entry: Bibliographie
Title: Chemical Gradients in Cu(In,Ga)(S,Se)2 Thin-Film Solar Cells: Results of the GRACIS Project
Language: English
Date: 29 November 2013
Book Title: EU PVSEC Proceedings
Event Title: 27th European Photovoltaic Solar Energy Conference and Exhibition
Event Location: Frankfurt am Main
DOI: 10.4229/27thEUPVSEC2012-3BO.4.1
Abstract:

The German joint research project “Chemical Gradients in Cu(In,Ga)(S,Se)2” (GRACIS) is an initiative to gain a better physical understanding concerning the formation of chemical gradients in the Cu(In,Ga)(S,Se)2 (CIGS) absorber layers and at the CIGS/buffer interface. This article presents the current status of the GRACIS project after three years of execution with results concerning phase formation during chalcogenization and coevaporation processes, influence of Ga grading on structural and electrical parameters as well as on inhomogeneities on the μm scale of CIGS. Special features of the CIGS/Zn(O,S) buffer interface are discussed and compared to CIGS solar cells with CdS buffer. In addition, our experimental results are supported by 3D simulations and calculations using screened-exchanged hybrid density functional theory.

Uncontrolled Keywords: Solar Cell, Inhomogeneous, CIGS, Buffer, Ga Gradient
Additional Information:

Proc. 27th Europ. Photovolt. Sol. En. Conf., Frankf. (2012)

Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Materials Modelling
11 Department of Materials and Earth Sciences > Material Science > Surface Science
Date Deposited: 29 Nov 2013 08:44
Last Modified: 08 May 2021 11:42
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