Publikation:

Towards an optimized emitter for screen printed solar cells

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Datum

2013

Autor:innen

Wagner, Hannes
Altermatt, Pietro P.

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http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1mg6iu3gmi6ho4
DOI (zitierfähiger Link)
https://doi.org/10.1109/PVSC-Vol2.2013.7179243
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Physik: Publikationen
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Published

Erschienen in

Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th. IEEE, 2013, pp. 25-31. Available under: doi: 10.1109/PVSC-Vol2.2013.7179243

Zusammenfassung

The determination of suitable process parameters for POCl3 diffusion, with the aim of minimizing emitter recombination and obtaining satisfactory contactability of the homogeneous emitter, is the aim of this study. It can be shown that different emitters with low Rsheet<; 60 Ω/sq can result in significantly different emitter saturation current densities. Regarding the screen-printing metallization procedure, we observe that the resistance of a semiconductor-metal contact can vary on different emitters despite of the same sheet resistance. In this study, the relevant process parameters for emitter optimization using POCl3-diffusion were determined with the help of a design of experiment (DoE). Thus, it is also possible to find optimized diffusion parameters without increasing the sheet resistance of the optimized emitter. To verify the efficiency potential of the emitter, a standard industrial solar cell process is applied, and the outcome is compared with results from simulations using Sentaurus Device. A significant increase in efficiency can be reached, with open circuit voltages >640 mV and average efficiencies well above 19%.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
530 Physik

Schlagwörter

homogeneous emitter, POCl3-diffusion, metallization, simulation

Konferenz

39th IEEE Photovoltaic Specialists Conference (PVSC), 16. Juni 2013 - 21. Juni 2013, Tampa, Florida
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ISO 690DASTGHEIB-SHIRAZI, Amir, Gabriel MICARD, Hannes WAGNER, Michael STEYER, Pietro P. ALTERMATT, Giso HAHN, 2013. Towards an optimized emitter for screen printed solar cells. 39th IEEE Photovoltaic Specialists Conference (PVSC). Tampa, Florida, 16. Juni 2013 - 21. Juni 2013. In: Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th. IEEE, 2013, pp. 25-31. Available under: doi: 10.1109/PVSC-Vol2.2013.7179243
BibTex
@inproceedings{DastgheibShirazi2013Towar-33278,
  year={2013},
  doi={10.1109/PVSC-Vol2.2013.7179243},
  title={Towards an optimized emitter for screen printed solar cells},
  publisher={IEEE},
  booktitle={Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th},
  pages={25--31},
  author={Dastgheib-Shirazi, Amir and Micard, Gabriel and Wagner, Hannes and Steyer, Michael and Altermatt, Pietro P. and Hahn, Giso}
}
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