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A Simple Sb2Te3 Back-Contact Process for CdTe Solar Cells

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Abstract

CdTe solar technology has proved to be a cost-efficient solution for energy production. Formation of the back contact is an important and critical step in preparing high-efficiency, stable CdTe solar cells. In this paper we report a simple CdTe solar cell (Sb2Te3) back contact-formation process. The CdS and CdTe layers were deposited by close-space sublimation. After CdCl2 annealing treatment, the CdTe surface was etched by use of a mixture of nitric and phosphoric acids to obtain a Te-rich surface. Elemental Sb was sputtered on the etched surface and successive post-annealing treatment induced Sb2Te3 alloy formation. Structural characterization by x-ray diffraction analysis confirmed formation of the Sb2Te3 phase. The performance of solar cells with nanoalloyed Sb2Te3 back contacts was comparable with that of reference solar cells prepared with sputtered Sb2Te3 back contact from a compound sputter target.

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References

  1. C. Corwine, A. Pudov, M. Gloeckler, S. Demtsu, and J. Sites, Sol. Energy Mater. Sol. Cells 82, 481 (2004).

    Google Scholar 

  2. D. Bätzner, R. Wendt, A. Romeo, H. Zogg, and A. Tiwari, Thin Solid Films 361, 463 (2000).

    Article  Google Scholar 

  3. M. Winkler, X. Liu, J. König, L. Kirste, H. Böttner, W. Bensch, and L. Kienle, J. Electron. Mater. 41, 1322 (2012).

    Article  Google Scholar 

  4. M. Winkler, X. Liu, J.D. Konig, S. Buller, U. Schurmann, L. Kienle, W. Bensch, and H. Bottner, J. Mater. Chem. 22, 11323 (2012).

    Article  Google Scholar 

  5. J.D. König, M. Winkler, S. Buller, W. Bensch, U. Schürmann, L. Kienle, and H. Böttner, J. Electron. Mater. 40, 1266 (2011).

    Article  Google Scholar 

  6. A. Bosio, A. Romeo, D. Menossi, S. Mazzamuto, and N. Romeo, Cryst. Res. Technol. 46, 857 (2011).

    Article  Google Scholar 

  7. D. Bätzner, A. Romeo, H. Zogg, R. Wendt, and A. Tiwari, Thin Solid Films 387, 151 (2001).

    Article  Google Scholar 

  8. B. Siepchen, C. Drost, B. Späth, V. Krishnakumar, H. Richter, M. Harr, S. Bossert, M. Grimm, K. Häfner, and T. Modes, Thin Solid Films 535, 224 (2013).

    Article  Google Scholar 

  9. V. Krishnakumar, A. Barati, H.-J. Schimper, A. Klein, and W. Jaegermann, Thin Solid Films 535, 233 (2013).

    Article  Google Scholar 

  10. O. Zywitzki, T. Modes, H. Morgner, C. Metzner, B. Siepchen, B. Späth, C. Drost, V. Krishnakumar, and S. Frauenstein, J.␣Appl. Phys. 114, 163518 (2013).

    Article  Google Scholar 

  11. A. Niemegeers and M. Burgelman, J. Appl. Phys. 81, 2881 (1997).

    Article  Google Scholar 

  12. X. Wu, J. Keane, R. Dhere, C. DeHart, A. Duda, T. Gessert, S. Asher, D. Levi, and P. Sheldon, Proceedings 17th European Photovoltaic Solar Energy Conference (vol. 995, Munich, 2001).

  13. I. Visoly-Fisher, K.D. Dobson, J. Nair, E. Bezalel, G. Hodes, and D. Cahen, Adv. Funct. Mater. 13, 289 (2003).

    Article  Google Scholar 

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Acknowledgements

The authors of this manuscript wish to thank Dr.␣Olaf Zywitzki and Dr Thomas Modes, Fraunhofer Institute for Electron and Plasma Techniques (FEP), Germany, for the SEM and TEM cross-sectional images.

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Authors and Affiliations

  1. CTF-Solar GmbH, Zur Wetterwarte 50, Haus 303, 01109, Dresden, Germany

    B. Siepchen, B. Späth, C. Drost, V. Krishnakumar & C. Kraft

  2. Energy Systems, Fraunhofer Institute for Physical Measurement Techniques IPM, Heidenhofstr. 8, 79110, Freiburg, Germany

    M. Winkler, J. König & K. Bartholomé

  3. China Triumph International Engineering Co., Ltd, 27 F, Zhonqi Bldg., No. 2000, Zhongshan Beilu, Shanghai, 200063, China

    S. Peng

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  1. B. Siepchen
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  2. B. Späth
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  3. C. Drost
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  4. V. Krishnakumar
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  5. C. Kraft
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  6. M. Winkler
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  7. J. König
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  8. K. Bartholomé
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  9. S. Peng
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Correspondence to V. Krishnakumar.

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Siepchen, B., Späth, B., Drost, C. et al. A Simple Sb2Te3 Back-Contact Process for CdTe Solar Cells. J. Electron. Mater. 44, 3354–3359 (2015). https://doi.org/10.1007/s11664-015-3894-2

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  • DOI: https://doi.org/10.1007/s11664-015-3894-2

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