On the Specific Features of the Plasma-Assisted MBE Synthesis of n+-GaN Layers on GaN/c-Al2O3 Templates View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2019-09-03

AUTHORS

A. M. Mizerov, S. N. Timoshnev, E. V. Nikitina, M. S. Sobolev, K. Yu. Shubin, T. N. Berezovskaia, D. V. Mokhov, W. V. Lundin, A. E. Nikolaev, A. D. Bouravleuv

ABSTRACT

The results obtained in a study of the synthesis of n+-GaN layers by plasma-assisted molecular-beam epitaxy on GaN/c-Al2O3 templates are reported. In particular, a method is developed for the pre-epitaxial cleaning of the GaN surfaces of templates to remove foreign atoms. It is shown that, to form GaN layers of comparatively good quality, including those doped with silicon up to ~4.6 × 1019 cm–3, GaN template surfaces should be pre-epitaxially cleaned in a flow of activated nitrogen particles, with the substrate temperature increased from TS = 400 to 600°C and the substrate surface subsequently exposed to a flow of activated nitrogen at a fixed value of TS = 600°C for 1 h. After that the substrate temperature should be raised to TS = 700°C and the GaN surface finally cleaned by means of a procedure for gallium deposition/desorption. More... »

PAGES

1187-1191

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s1063782619090112

DOI

http://dx.doi.org/10.1134/s1063782619090112

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1120799040


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