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Microscopic lateral overgrowth by physical vapour transport of GaN on self-organized diamond-like carbon masks
Leibniz Institute Kristallzuchtung.
Leibniz Institute Kristallzuchtung.
Leibniz Institute Kristallzuchtung.
Leibniz Institute Kristallzuchtung.
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2009 (English)In: CRYSTAL RESEARCH AND TECHNOLOGY, ISSN 0232-1300, Vol. 44, no 10, 1078-1082 p.Article in journal (Refereed) Published
Abstract [en]

Techniques to reduce dislocation densities in GaN grown on foreign substrates are an interesting alternative to bulk growth as long as efficient bulk crystals growth techniques are not available, In this paper a new approach for epitaxial lateral overgrowth (ELO) of GaN through an in-situ grown self-organized amorphous (diamond-like) carbon mask is demonstrated. The ELO was done for the first time by physical vapour transport of Ga, using NH3 as a nitrogen source. The overgrowth results in a decrease of the threading dislocation density by at least one order of magnitude compared to that of the MOCVD GaN/sapphire templates.

Place, publisher, year, edition, pages
2009. Vol. 44, no 10, 1078-1082 p.
Keyword [en]
ELO, GaN, diamond-like carbon masks
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-51894DOI: 10.1002/crat.200900526OAI: oai:DiVA.org:liu-51894DiVA: diva2:278070
Available from: 2009-11-23 Created: 2009-11-23 Last updated: 2009-11-23

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Yakimova, Rositsa

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