Type of Publication: | Journal article |
Author: | De Moro, Fabrice; Focsa, Alexandru; Derbouz, Karim; Slaoui, Abdelilah; Auriac, Nicolas; Lignier, Hélène; Keller, Philipp |
Year of publication: | 2012 |
Published in: | physica status solidi (c) ; 9 (2012), 10-11. - pp. 2092-2096. - ISSN 1862-6351. - eISSN 1610-1642 |
DOI (citable link): | https://dx.doi.org/10.1002/pssc.201200087 |
Summary: |
The aim of Solarforce is the achievement of high efficiency solar cells made out of ≤100 µm thick multicrystalline silicon wafers produced by the Ribbon on Sacrificial Template (RST) process. For a first evaluation of the RST material, solar cells were fabricated on p-type RST wafers with different processes. The first conclusion is that the density of silicon carbide inclusions has to be lowered to obtain better FF values, and in turn a better homogeneity in cell performances. Secondly, conversion efficiency is found to be limited around 14% by low bulk minority carrier lifetime values, limiting both Voc and Leff. ICP-MS analyses on RST material show that this lifetime may be improved with the possible achievement of low metallic impurity content in the wafers, under 1 ppb wt. Further enhancement is also shown to be possible with the n doping of RST material, a well controlled process in ribbon growth.
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Subject (DDC): | 530 Physics |
Keywords: | mc-Si, ribbon, minority carrier lifetime, solar cells |
Bibliography of Konstanz: | Yes |
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DE MORO, Fabrice, Alexandru FOCSA, Karim DERBOUZ, Abdelilah SLAOUI, Nicolas AURIAC, Hélène LIGNIER, Philipp KELLER, 2012. Multicrystalline silicon solar cells from RST ribbon process. In: physica status solidi (c). 9(10-11), pp. 2092-2096. ISSN 1862-6351. eISSN 1610-1642. Available under: doi: 10.1002/pssc.201200087
@article{DeMoro2012Multi-26660, title={Multicrystalline silicon solar cells from RST ribbon process}, year={2012}, doi={10.1002/pssc.201200087}, number={10-11}, volume={9}, issn={1862-6351}, journal={physica status solidi (c)}, pages={2092--2096}, author={De Moro, Fabrice and Focsa, Alexandru and Derbouz, Karim and Slaoui, Abdelilah and Auriac, Nicolas and Lignier, Hélène and Keller, Philipp} }
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