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| HAL : hal-00490457, version 1 |
| arXiv : 1005.4869 |
| Fiche détaillée |  Récupérer au format |
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| Absorbing photonic crystals for thin film photovoltaics |
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| O. El DaifE. Drouard 1 |
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| (26/05/2010) |
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| The absorption of thin hydrogenated amorphous silicon layers can be efficiently enhanced through a controlled periodic patterning. Light is trapped through coupling with photonic Bloch modes of the periodic structures, which act as an absorbing planar photonic crystal. We theoretically demonstrate this absorption enhancement through one or two dimensional patterning, and show the experimental feasibility through large area holographic patterning. Numerical simulations show over 50% absorption enhancement over the part of the solar spectrum comprised between 380 and 750nm. It is experimentally confirmed by optical measurements performed on planar photonic crystals fabricated by laser holography and reactive ion etching. |
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| 1 : | Institut FRESNEL (IF) |
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CNRS : UMR6133 – Université de Provence - Aix-Marseille I – Université Paul Cézanne - Aix-Marseille III – Ecole Centrale de Marseille |
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| 2 : | Institut des nanotechnologies de Lyon - Site d'Ecully (INL) |
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CNRS : UMR5270 – Université Claude Bernard - Lyon I – Institut National des Sciences Appliquées (INSA) - Lyon – Ecole Centrale de Lyon |
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| 3 : | Laboratoire de physique des interfaces et des couches minces (LPICM) |
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CNRS : UMR7647 – Polytechnique - X |
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| Domaine | : | Physique/Matière Condensée/Autre Physique/Physique/Optique |
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| Lien vers le texte intégral : |
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| http://fr.arXiv.org/abs/1005.4869 |
| hal-00490457, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00490457 | |
| oai:hal.archives-ouvertes.fr:hal-00490457 | |
| Contributeur : Enric Garcia-Caurel | |
| Soumis le : Mardi 8 Juin 2010, 16:20:47 | |
| Dernière modification le : Mardi 8 Juin 2010, 16:20:47 | |
