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Optimization of Graded CIGS Solar Cells Using TCAD Simulations

  • Mankoo Lee (a1), Dipankar Pramanik (a1), Haifan Liang (a1), Ed Korczynski (a1) and Jeroen van Duren (a1)...
Abstract

To understand paths towards higher efficiency (η) for copper-indium-gallium-(sulfur)-selenide [CIG(S)Se] solar cells, we investigated a variety of absorber composition grading schemes for various back-side gallium (Ga), front-side sulfur (S), and double-graded Ga composition depth profiles in TCAD 1D/2D simulations. We fitted experimental results of a Back-Side Graded (BSG) solar cell with our TCAD models, prior to investigating other grading and interface schemes. The BSG solar cell was fabricated on a High Productivity Combinatorial (HPC) platform based on sputtering Cu(In,Ga) followed by selenization. Our TCAD simulation methodology for optimizing CIG(S)Se solar cells started with a sensitivity analysis using 1D Solar-cell CAPacitance Simulator (SCAPS) [1] by selecting a typical range of key model parameters and analyzing the impact on η. We then used a 2D commercially-available Sentaurus simulation tool [2] to incorporate wavelength-dependent optical characteristics. As a result, we provide insight in the impact of grading schemes on efficiency for a fixed ‘material quality’ equal to an in-house BSG solar cell. We also quantify the effects of interface layers like MoSe2 at the Mo/CIG(S)Se interface, and an inverted surface layer at the CIG(S)Se/CdS interface.

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1. Burgelman, M. and Marlein, J., 23rd European Photovoltaic S.E. Conf., 2008, pp. 2151–5.
2. Synopsys, Inc., Sentaurus Device User Guide, Version F-2011.09, 2011.
3. Jackson, P., et al. ., Prog. Photovoltaic: Res. Appl. 19, 2011, pp. 894897.
4. Contreras, M. A., Mansfield, L. M., et al. ., IEEE Proc. of the 37th PVSC, 2011.
5. Decock, K., Lauwaert, J. and Burgelman, M., Proc. of the 45th Int. Conf. on MIDEM, 2009.
6. Song, J., Li, S. S., Huang, C. H., et al. ., Solid-State Electronics 48, 2004, pp. 73–9
7. Lundberg, O., Edoff, M., and Stolt, L., Thin Solid Films 480481, 2005, pp. 520–5.
8. Lee, J. W, van Duren, J., et al. ., Mater. Res. Soc. Symp. Proc. vol. 1165, 2009.
9. Morales-Aceveldo, A., et al. ., Materials Science & Engineering B, 2012, in press .
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MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
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