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Deactivation Treatments of Silicon Solar Cells for Efficiency Recovery after Illumination Degradation

Published online by Cambridge University Press:  31 January 2011

Teng-Yu Wang ,
Terry Wang ,
Yen-Ju Chen ,
Chwung-Shan Kou ,
Chien-Hsun Chen ,
Wei-Lun Chang ,
Sung-Yu Chen ,
Chen-Hsun Du ,
Wen-Ching Sun  and
Chung-Wen Lan
Teng-Yu Wang
Affiliation:
[email protected], Industrial Technology Research Institute, Hsinchu, Taiwan, Province of China
Terry Wang
Affiliation:
[email protected], Industrial Technology Research Institute, Hsinchu, Taiwan, Province of China
Yen-Ju Chen
Affiliation:
[email protected], National Tsing Hua University, Hsinchu, Taiwan, Province of China
Chwung-Shan Kou
Affiliation:
[email protected], National Tsing Hua University, Hsinchu, Taiwan, Province of China
Chien-Hsun Chen
Affiliation:
[email protected], Industrial Technology Research Institute, Hsinchu, Taiwan, Province of China
Wei-Lun Chang
Affiliation:
[email protected], Industrial Technology Research Institute, Hsinchu, Taiwan, Province of China
Sung-Yu Chen
Affiliation:
[email protected], Industrial Technology Research Institute, Hsinchu, Taiwan, Province of China
Chen-Hsun Du
Affiliation:
[email protected], Industrial Technology Research Institute, Hsinchu, Taiwan, Province of China
Wen-Ching Sun
Affiliation:
[email protected], Industrial Technology Research Institute, Hsinchu, Taiwan, Province of China
Chung-Wen Lan
Affiliation:
[email protected], Industrial Technology Research Institute, Hsinchu, Taiwan, Province of China
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Abstract

We applied the deactivation treatments to p-type single crystalline silicon solar cells for deactivating the recombination-active boron-oxygen complex. The methods we used include thermal annealing treatment, capacitively couple plasma (CCP) treatment, and plasma immersion ion implantation (PIII) treatment. The results showed that all the deactivation treatments were working and the energy transfer efficiency (Eff) was thereby increased by more than 1% absolute compared to the degraded state base on the increasing of the open-circular voltage (Voc) and short-current density (Jsc). The CCP deactivated treatment got better efficiencies than PIII treatment because the PIII treatment damaged the surface of solar cells. After the forming gas treatment, the samples could be improved to close to the PIII samples due to the surface damage repairing. However, the increased efficiency could not be kept and would be degraded again after illumination.

Keywords

photovoltaicSicrystalline
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1210: Symposium Q – Photovoltaic Materials and Manufacturing Issues II , 2009 , 1210-Q08-13
Copyright
Copyright © Materials Research Society 2010

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References

1 Green, M. A. “Silicon solar cells: evolution, high-efficiency design and efficiency enhancements”, Semiconductor Science and Technology 8, 1–12(1993).Google Scholar
2 Ohshita, Y. Vu, T. Khanh, and Yamaguchi, M. “Interstitial boron and oxygen related defects as the origin of the deep energy level in Czochralski-grown silicon”, Journal of Applied Physics 91, 3741(2002).Google Scholar
3 Schmidt, J. and Bothe, K. “Structure and transformation of the metalstable boron- and oxygen-related defect center in crystalline silicon”, Physical Review B 69, 024107(2004).Google Scholar
4 Glunz, S. W. Rein, S. Knobloch, J. Wettling, W. and Abe, T. “Comparison of boron- and gallium-doped p-type Czochralski silicon for photovoltaic application”, Progress in Photovoltaics: Research and Applications 7, 463–469(1999).Google Scholar
5 Schmidt, J. Bothe, K. Bock, R. Schmiga, C. Krain, R. Brendel, R. “N-type silicon - the better material choice for industrial high-efficiency solar cells ?”, 22nd European Photovoltaic Solar Energy Conference, 3-7 September 2007, Milan, Italy.Google Scholar
6 Zhao, J. “Recent advances of high-efficiency single crystalline silicon solar cells in processing technologies and substrate materials”, Solar Energy Materials and Solar Cells 82, 53–64(2004).Google Scholar
7 Lim, B. Hermann, S. Bothe, K. Schmidt, J. and Brendel, R. “Solar cells on low-resistivity boron-doped Czochralski-grown silicon with stabilized efficiencies of 20%”, Applied Physics Letters 93, 162102(2008).Google Scholar
8 Wang, C. W. Lin, C. T. Kou, C. S. Lin, J. Y. Hwang, J. Gan, J. Y. Sun, W. C. Du, C. H. and Lan, C. W. “A novel hydrogenation method to improve the efficiency of crystalline silicon solar cells”, submitted to Solar Energy Materials and Solar Cells.Google Scholar