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In-vacancies in Si-doped InN
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Rauch, C., Reurings, F., Tuomisto, F., Veal, T. D. (Tim D.), McConville, C. F. (Chris F.), Lu, H., Schaff, W. J., Gallinat, C. S., Koblmueller, G., Speck, James S., Egger, W., Loewe, B., Ravelli, L. and Sojak, S. (2010) In-vacancies in Si-doped InN. In: Fall Meeting of the European-Materials-Research-Society, Warsaw, Poland, September 14-18, 2009. Published in: Physica Status Solidi A, Vol.207 (No.5). pp. 1083-1086. ISSN 1862-6300. doi:10.1002/pssa.200983120
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Official URL: http://dx.doi.org/10.1002/pssa.200983120
Abstract
The introduction of vacancy type point defects by Si doping in InN grown by plasma-assisted molecular beam epitaxy was studied using a monoenergetic positron beam. With the combination of positron lifetime and Doppler broadening measurements, compensating In-vacancy (V-In) acceptors were identified in the material. For increasing Si doping an enhanced formation of V-In, defects was observed, up to a concentration of c(V) = 7 x 10(17) cm(-3) in the highest doped sample (n(e) = 6.6 x 10(20) cm(-3)). A strong inhomogeneity of the defect profile with a significant increase of the V-In, concentration toward the layer/substrate interface could be detected. Additionally, larger vacancy clusters containing several V-In are formed in the proximity of the interface. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
| Item Type: | Conference Item (UNSPECIFIED) | ||||
|---|---|---|---|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) Q Science > QC Physics |
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| Divisions: | Faculty of Science > Physics | ||||
| Journal or Publication Title: | Physica Status Solidi A | ||||
| Publisher: | Wiley-VCH Verlag GMBH | ||||
| ISSN: | 1862-6300 | ||||
| Official Date: | May 2010 | ||||
| Dates: |
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| Volume: | Vol.207 | ||||
| Number: | No.5 | ||||
| Number of Pages: | 4 | ||||
| Page Range: | pp. 1083-1086 | ||||
| DOI: | 10.1002/pssa.200983120 | ||||
| Status: | Not Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Title of Event: | Fall Meeting of the European-Materials-Research-Society | ||||
| Type of Event: | Conference | ||||
| Location of Event: | Warsaw, Poland | ||||
| Date(s) of Event: | September 14-18, 2009 |
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