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Sublimation growth of thick freestanding 3C-SiC using CVD-templates on silicon as seeds
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, The Institute of Technology.
Leibniz Institute for Crystal Growth, Max-Born-Strasse 2, D-12489 Berlin, Germany.
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2012 (English)In: Materials letters (General ed.), ISSN 0167-577X, E-ISSN 1873-4979, Vol. 67, no 1, 300-302 p.Article in journal (Refereed) Published
Abstract [en]

Cubic silicon carbide is a promising material for medium power electronics operating at high frequencies and for the subsequent growth of gallium nitride for more efficient light emitting diodes. We present a new approach to produce freestanding cubic silicon carbide (3C-SiC) with the ability to obtain good crystalline quality regarding increased domain size and reduced defect density. This would pave the way to achieve substrates of 3C-SiC so that the applications of cubic silicon carbide material having selectively (111) or (001) oriented surfaces can be explored. Our method is based on the combination of the chemical vapor deposition method and the fast sublimation growth process. Thin layers of cubic silicon carbide grown heteroepitaxially on silicon substrates are for the first time used for a subsequent sublimation growth step to increase layer thicknesses. We have been able to realize growth of freestanding (001) oriented 3C-SiC substrates using growth rates around 120 μm/h and diameters of more than 10 mm. The structural quality from XRD rocking curve measurements of (001) oriented layers shows good FWHM values down to 78 arcsec measured over an area of 1 × 2 mm2, which is a quality improvement of 2–3 times compared with other methods like CVD.

Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 67, no 1, 300-302 p.
Keyword [en]
Crystal growth, Defects, Physical vapor deposition, Semiconductors, Epitaxial growth, Thick films
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-73672DOI: 10.1016/j.matlet.2011.09.109ISI: 000298272200086OAI: oai:DiVA.org:liu-73672DiVA: diva2:475747
Note

Funding agencies|Angpanneforeningen Research Foundation||Swedish Energy Agency||Bundesministerium fur Bildung und Forschung (BMBF)| 03SF0393 |

Available from: 2012-01-11 Created: 2012-01-11 Last updated: 2017-12-08

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Hens, PhilipJokubavicius, ValdasLiljedahl, RickardYakimova, RositsaSyväjärvi, Mikael
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