A Physical Model for Non-Ohmic Shunt Conduction and Metastability in Amorphous Silicon Solar Cells

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Abstract

In this talk we develop a coherent physics based understanding of the shunt leakage problem in a-Si:H cells, and discuss its implications on cell and module level.

Bio

Sourabh Dongaonkar is with School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN
Karthik Y and Souvik Mahapatra are with Department of Electrical Engineering, IIT Bombay, Mumbai, India

Sponsored by

SRC ERI, Network for Photovoltaic Technology

References

[1] V. Sittinger, F. Ruske, W. Werner, B. Szyszka, B. Rech, J. Hüpkes, G. Schöpe, and H. Stiebig, "ZnO:Al films deposited by in-line reactive AC magnetron sputtering for a-Si:H thin film solar cells," Thin Solid Films, vol. 496, pp. 16-25, 2006.
[2] S. Dongaonkar, K. Y, D. Wang, M. Frei, S. Mahapatra, and M. A. Alam, "On the Nature of Shunt Leakage in Amorphous Silicon p-i-n Solar Cells," Electron Device Letters, IEEE, vol. 31, pp. 1266-1268, 2010.
[3] A. Rose, "Space-charge-limited currents in solids," Physical Review, vol. 97, pp. 1538-1544, 1955.
[4] M. S. Haque, H. A. Naseem, and W. D. Brown, "Aluminum-induced degradation and failure mechanisms of a-Si:H solar cells," Solar Energy Materials and Solar Cells, vol. 41-42, pp. 543-555, 1996.
[5] R. A. Street, Hydrogenated amorphous silicon. Cambridge; New York: Cambridge University Press, 1991.
[6] A. Avila and R. Asomoza, "Switching in coplanar amorphous hydrogenated silicon devices," Solid-State Electronics, vol. 44, pp. 17-27, 2000.

Publications

Dongaonkar S., Karthik Y, Mahapatra S., Alam M. A., "A Physical Model for Non-Ohmic Conduction and Metastability in Amorphous Silicon Solar Cells.", 37th IEEE Photovoltaic Specialists Conference, Seattle, WA, 2011

Cite this work

Researchers should cite this work as follows:

  • Sourabh Dongaonkar; Souvik Mahapatra; Karthik Yogendra; Muhammad Alam (2011), "A Physical Model for Non-Ohmic Shunt Conduction and Metastability in Amorphous Silicon Solar Cells," http://nanohub.org/resources/11841.

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Location

37th IEEE Photovoltaic Specialists Conference, Seattle WA

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