0424996 - FZÚ 2014 CZ eng A - Abstract
Stuchlíková, The-Ha - Stuchlík, Jiří - Remeš, Zdeněk - Fajgar, Radek - Galkin, N.G. - Galkin, K.N. - Chernev, I.M.
The deposition of amorphous and amorphous hydrogenated silicon with embedded cubic Mg₂Si nanoparticles.
NANOCON 2013. 5th International Conference Proceedings. Ostrava: TANGER Ltd, 2013. ISBN 978-80-87294-44-4.
[NANOCON 2013. International Conference /5./. 16.10.2013-18.10.2013, Brno]
R&D Projects: GA ČR GA13-25747S; GA MŠMT LH12236
Institutional support: RVO:68378271 ; RVO:67985858
Keywords : Mg₂Si nanoparticles * a-Si/a-Si:H matrix * RDA * PECVD * RLA
Subject RIV: BM - Solid Matter Physics ; Magnetism

It is very well known that in the case of amorphous structure the absorption coefficient α is high but transport of charge in this structure is not adequate for higher efficiency. From opposite side the microcrystalline structure is more convenient for transport of charge but absorption is lower and that is why the solar cells have been thicker for sufficient absorption of light. That is why we study possibilities how to increase α by usage of magnesium silicide nanoparticles (Mg2Si-NPs) in structure of Si:H. In this paper we introduce two technics - combination of PECVD and Vacuum Evaporation (VE) and Reactive Laser Ablation (RLA) – for preparation of cubic structure of Mg2Si-NPs in amorphous (a-Si) or amorphous hydrogenated (a-Si:H) silicon matrix. Formation of Mg2Si-NPs was proved by Raman spectroscopy. Likewise we introduce optical changes measured at absorption edge and the first results on realized NIP structures.
Permanent Link: http://hdl.handle.net/11104/0230964