Publikation: Lifetime monitoring and hydrogen passivation in a buried contact cell process using String Ribbon silicon
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2006
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POORTMANS, Jozef, ed.. Twentyfirst European Photovoltaic Solar Energy Conference : Proceedings of the International Conference. Munich: WIP-Renewable Energies, 2006, pp. 1490-1492. ISBN 978-1-60423-787-0
Zusammenfassung
The buried contact cell design has a higher efficiency potential than the widely used screen print cell concept due to its selective emitter design and low shading losses. In industry only Cz-Si is used. Hydrogen bulk passivation and thermal load of the wafers are different in the buried contact process and can be key issues to reach high efficiencies with multi-crystalline silicon. Adjacent String Ribbon wafers are used to monitor the change of bulk lifetime during a buried contact process. Bulk lifetime was measured 2-dimensionally resolved with μ-PCD. An improvement of PECVD-SiN deposition without a firing step was measured. The heavy 10 Ohm/sq diffusion leads to a degradation due to effusion of hydrogen. Bulk lifetime after hydrogen passivation by MIRHP in a buried contact solar cell process is similar to an adjacent wafer after a screen print process, therefore higher efficiencies of buried contact cells are expected.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
ribbon silicon, buried contacts, passivation
Konferenz
21st European Photovoltaic Solar Energy Conference : 21th EC PVSEC, 4. Sept. 2006 - 8. Sept. 2006, Dresden, Germany
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ISO 690
RAABE, Bernd, Jayaprasad ARUMUGHAN, Bob CLARK-PHELPS, Giso HAHN, 2006. Lifetime monitoring and hydrogen passivation in a buried contact cell process using String Ribbon silicon. 21st European Photovoltaic Solar Energy Conference : 21th EC PVSEC. Dresden, Germany, 4. Sept. 2006 - 8. Sept. 2006. In: POORTMANS, Jozef, ed.. Twentyfirst European Photovoltaic Solar Energy Conference : Proceedings of the International Conference. Munich: WIP-Renewable Energies, 2006, pp. 1490-1492. ISBN 978-1-60423-787-0BibTex
@inproceedings{Raabe2006Lifet-42211,
year={2006},
title={Lifetime monitoring and hydrogen passivation in a buried contact cell process using String Ribbon silicon},
isbn={978-1-60423-787-0},
publisher={WIP-Renewable Energies},
address={Munich},
booktitle={Twentyfirst European Photovoltaic Solar Energy Conference : Proceedings of the International Conference},
pages={1490--1492},
editor={Poortmans, Jozef},
author={Raabe, Bernd and Arumughan, Jayaprasad and Clark-Phelps, Bob and Hahn, Giso},
note={Auf CD-ROM}
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<dcterms:abstract xml:lang="eng">The buried contact cell design has a higher efficiency potential than the widely used screen print cell concept due to its selective emitter design and low shading losses. In industry only Cz-Si is used. Hydrogen bulk passivation and thermal load of the wafers are different in the buried contact process and can be key issues to reach high efficiencies with multi-crystalline silicon. Adjacent String Ribbon wafers are used to monitor the change of bulk lifetime during a buried contact process. Bulk lifetime was measured 2-dimensionally resolved with μ-PCD. An improvement of PECVD-SiN deposition without a firing step was measured. The heavy 10 Ohm/sq diffusion leads to a degradation due to effusion of hydrogen. Bulk lifetime after hydrogen passivation by MIRHP in a buried contact solar cell process is similar to an adjacent wafer after a screen print process, therefore higher efficiencies of buried contact cells are expected.</dcterms:abstract>
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Auf CD-ROM
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Ja
