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Optimization and Characterisation of Amorphous Iron Disilicide formed by Ion Beam Mixing of Fe / Si Multilayer Structures for Photovoltaic Applications
| Content Provider | Semantic Scholar |
|---|---|
| Author | Antwis, Luke Wong, Lewis Smith, Andy Homewood, Kevin P. Jeynes, Chris Gwilliam, Russell M. |
| Copyright Year | 2014 |
| Abstract | Articles you may be interested in Structural and optical characterization of two-dimensional arrays of Si nanocrystals embedded in SiO2 for photovoltaic applications Photovoltaic effect in micrometer-thick perovskite-type oxide multilayers on Si substrates Appl. Abstract. This study presents an optimization and characterization of amorphous Iron Disilicide (a-FeSi 2) synthesized using Ion Beam Mixing (IBM) of Fe/Si multilayer structures. The layers were deposited using RF magnetron sputtering, and subsequently irradiated with Ar + and Fe + beams of 150 and 200keV. Rutherford Back Scattering (RBS) analysis was used to determine the structure and level of silicidation of the samples. The nature of the band-gap and the optical absorption coefficients were determined by optical transmission analysis. The results demonstrate that the synthesis of a-FeSi 2 can be achieved using this technique, with the total level of silicidation being highly dependant upon the initial structure configuration and beam parameters. Direct band-gap energies of ~0.90eV have been observed for those samples with the highest levels of silicidation, with optical absorption coefficients of ~10 4 cm-1. Therefore this method of fabrication has been shown to produce a-FeSi 2 layers without the need for post-synthesis treatment, using established technologies without compromising the optical properties that make this material such a promising semiconductor for the photovoltaics market. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://epubs.surrey.ac.uk/806496/1/Antwis-IIT2010.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | APPL1 gene Amorphous computing Coefficient Embedded system Embedding Energy, Physics Inclusion Body Myositis (disorder) International System of Units Ion beam mixing Ions Iron Mathematical optimization Nanocrystalline Materials Radio frequency Roberts-SC phocomelia syndrome Semiconductor Sputter deposition anatomical layer perovskite |
| Content Type | Text |
| Resource Type | Article |
