Screen-printed ribbon growth on substrate solar cells approaching 12% efficiency

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SEREN, Sven, Giso HAHN, Astrid GUTJAHR, Antonius R. BURGERS, Axel SCHÖNECKER, 2005. Screen-printed ribbon growth on substrate solar cells approaching 12% efficiency. IEEE Photovoltaic Specialists Conference. Lake Buena Vista, 3. Jan 2005 - 7. Jan 2005. In: IEEE, , ed. and others. Conference record of the Thirty-First IEEE Photovoltaic Specialists Conference - 2005 : Coronado Springs Resort, Lake Buena Vista, FL, January 3 - 7, 2005. IEEE Photovoltaic Specialists Conference. Lake Buena Vista, 3. Jan 2005 - 7. Jan 2005. Piscataway, NJ:IEEE Operations Center, pp. 1055-1058. ISSN 0160-8371. ISBN 0-7803-8707-4

@inproceedings{Seren2005Scree-31148, title={Screen-printed ribbon growth on substrate solar cells approaching 12% efficiency}, year={2005}, doi={10.1109/PVSC.2005.1488315}, isbn={0-7803-8707-4}, issn={0160-8371}, address={Piscataway, NJ}, publisher={IEEE Operations Center}, booktitle={Conference record of the Thirty-First IEEE Photovoltaic Specialists Conference - 2005 : Coronado Springs Resort, Lake Buena Vista, FL, January 3 - 7, 2005}, pages={1055--1058}, editor={IEEE}, author={Seren, Sven and Hahn, Giso and Gutjahr, Astrid and Burgers, Antonius R. and Schönecker, Axel} }

Gutjahr, Astrid Schönecker, Axel Gutjahr, Astrid 2005 Schönecker, Axel Burgers, Antonius R. Seren, Sven Burgers, Antonius R. Hahn, Giso 2015-06-12T12:31:26Z Hahn, Giso eng 2015-06-12T12:31:26Z Screen-printed ribbon growth on substrate solar cells approaching 12% efficiency Ribbon growth on substrate (RGS) solar cells have been processed at the University of Konstanz using an adapted industrial-type fire-through SiN process. An efficiency of 12.3% has been reached on a 5×5 cm<sup>2</sup> cell. This is the highest efficiency obtained on this very promising and cost-effective material using an industrial-type cell process. An important factor for the increase in efficiency was the reduced oxygen concentration of almost an order of magnitude in the current RGS wafer material compared to former RGS material. Enhanced J<sub>sc</sub>, V<sub>oc</sub> and L<sub>eff</sub> values in the range of 100 μm as well as lifetimes above 4 μs demonstrate the potential of the new low oxygen RGS material. Efficiencies well above 13% should be possible, provided a surface texture is applied and shunting mechanism can be avoided. Seren, Sven

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