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Structural impact of LPE buffer layer on sublimation grown 4H-SiC epilayers
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. Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials.
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2003 (English)In: Journal of Crystal Growth, ISSN 0022-0248, E-ISSN 1873-5002, Vol. 256, no 3-4, 276-282 p.Article in journal (Refereed) Published
Abstract [en]

The objective of this work was to study the effect of a liquid phase epitaxy buffer layer on the development of defects in sublimation grown epitaxial layers of 4H-SiC. The results were analyzed with the aid of optical microscope, scanning electron microscope, high-resolution X-ray diffraction and synchrotron white beam X-ray topography. A pronounced effect of the liquid phase epitaxy buffer layer on formation of dislocations and micropipes is observed in the sublimation epitaxy layers. It has been shown that during sublimation growth of epilayer with a thin liquid phase epitaxy buffer layer (0.1µm) defects may undergo transformation and stacking faults can be formed. Sublimation grown epilayers grown on a thick liquid phase epitaxy buffer layer (1µm) also showed a symmetrical distribution of misfit dislocations along the <112¯0> and [11¯00] directions. © 2003 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2003. Vol. 256, no 3-4, 276-282 p.
Keyword [en]
A1. Epilayers, A1. Synchrotron white beam X-ray topography, A1. X-ray diffraction, A3. Liquid phase epitaxy, B1. SiC
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-46505DOI: 10.1016/S0022-0248(03)01337-XOAI: oai:DiVA.org:liu-46505DiVA: diva2:267401
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Yakimova, RositsaSyväjärvi, MikaelKakanakova-Georgieva, AneliaJanzén, Erik

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Yakimova, RositsaSyväjärvi, MikaelKakanakova-Georgieva, AneliaJanzén, Erik
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