Over 10% efficient screen printed RGS solar cells

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HAHN, Giso, Sven SEREN, Detlef SONTAG, Astrid GUTJAHR, Leon LAAS, Axel SCHÖNECKER, 2003. Over 10% efficient screen printed RGS solar cells. 3rd World Conference on Photovoltaic Energy Conversion (WCPEC). Osaka, 11. Mai 2003 - 18. Mai 2003. In: KUROKAWA, Kosuke, ed. and others. Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion : joint conference of 13th PV Science & Engineering Conference, 30th IEEE PV Specialists Conference, 18th European PV Solar Energy Conference; Osaka International Congress Center "Grand Cube", Osaka, Japan, 11 - 18 May 2003 ; Vol. 2. 3rd World Conference on Photovoltaic Energy Conversion (WCPEC). Osaka, 11. Mai 2003 - 18. Mai 2003. Osaka, pp. 1285-1288

@inproceedings{Hahn2003effic-30903, title={Over 10% efficient screen printed RGS solar cells}, year={2003}, address={Osaka}, booktitle={Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion : joint conference of 13th PV Science & Engineering Conference, 30th IEEE PV Specialists Conference, 18th European PV Solar Energy Conference; Osaka International Congress Center "Grand Cube", Osaka, Japan, 11 - 18 May 2003 ; Vol. 2}, pages={1285--1288}, editor={Kurokawa, Kosuke}, author={Hahn, Giso and Seren, Sven and Sontag, Detlef and Gutjahr, Astrid and Laas, Leon and Schönecker, Axel} }

Gutjahr, Astrid 2003 2015-05-07T13:42:17Z Seren, Sven Sontag, Detlef Gutjahr, Astrid eng Hahn, Giso The ribbon-growth-on-substrate (RGS) technology has the potential to produce wafers for PV at low cost and high speed without silicon losses related to wafer cutting. Up to now a discontinuously operating R&D machine produces test wafers with high oxygen content. Special care had therefore to be taken to prevent the formation of recombination centres related to oxygen formed at high temperatures during cell processing. Solar cells fabricated from RGS material with high oxygen content using an evaporation process resulted in efficiencies of up to 12.8%. An industrial-type screen printing process led to efficiencies of up to 10.5%. To further increase efficiency, the oxygen content has to be reduced. After a rebuilding of the RGS machine wafers reveal significantly lower oxygen contents. First screen printed cells made from that material show higher currents and open circuit voltages but not yet higher efficiencies due to shunting problems caused by current collecting structures. Laas, Leon Seren, Sven Sontag, Detlef Schönecker, Axel Laas, Leon Schönecker, Axel Hahn, Giso 2015-05-07T13:42:17Z Over 10% efficient screen printed RGS solar cells

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