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Enhanced optical absorption in microcrystalline silicon
Auteur(s)
Beck, N.
Meier, Johannes
Fric, J.
Remeš, Z.
Poruba, A.
Flückiger, R.
Pohl, J.
Shah, Arvind
Vaněček, Milan
Date de parution
1996
In
Journal of Non-Crystalline Solids, Elsevier, 1996/198-200//903-906
Résumé
An enhanced optical absorption, compared to crystalline silicon, was observed in the above gap region together with very low defect-connected absorption in microcrystalline silicon (μc-Si:H) prepared by very high frequency glow discharge technique at 70 MHz. As the μc-Si:H material has a very low fraction of amorphous phase, a ‘crystalline silicon like’ absorption model is proposed which associates most absorption properties of μc-Si:H to the crystalline phase in the material. Thereby the influence of internal strain, microcrystalline boundaries, hydrogen content and elastic light scattering on the absorption properties are discussed.
Identifiants
Type de publication
journal article
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