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All-optical charact...
All-optical characterization of carrier lifetimes and diffusion lengths in MOCVD-, ELO-, and HVPE- grown GaN
- Article/chapterEnglish2007
Publisher, publication year, extent ...
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Elsevier BV,2007
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:liu-38848
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-38848URI
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https://doi.org/10.1016/j.jcrysgro.2006.11.014DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:kon swepub-publicationtype
Notes
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The metrological capability of the picosecond four-wave mixing (FWM) technique for evaluation of the photoelectrical properties of GaN heterostructures grown on sapphire, silicon carbide, and silicon substrates as well as of free-standing GaN films is demonstrated. Carrier recombination and transport features have been studied in a wide excitation, temperature, and dislocation density (from ∼1010 to 106 cm-2) range, exploring non-resonant refractive index modulation by a free carrier plasma. The studies allowed to establish the correlations between the dislocation density and the carrier lifetime, diffusion length, and stimulated emission threshold, to reveal a competition between the bimolecular and nonradiative recombination, and to verify the temperature dependence of bimolecular recombination coefficient in the 10-300 K temperature range. It was shown that the FWM technique is more advantageous than the time-resolved photoluminescence technique for determination of carrier lifetimes in high quality thick III-nitride layers. © 2006 Elsevier B.V. All rights reserved.
Subject headings and genre
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NATURAL SCIENCES
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NATURVETENSKAP
Added entries (persons, corporate bodies, meetings, titles ...)
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Aleksiejunas, R.
(author)
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Jarasiunas, K.
(author)
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Beaumont, B.
(author)
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Gibart, P.
(author)
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Kakanakova-Georgieva, Anelia,1970-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)aneka59
(author)
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Janzén, Erik,1954-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)erija14
(author)
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Gogova, Daniela,1967-Linköpings universitet,Tekniska högskolan,Institutionen för fysik, kemi och biologi(Swepub:liu)dango64
(author)
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Monemar, Bo,1942-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)bomo46
(author)
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Heuken, M.
(author)
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Linköpings universitetTekniska högskolan
(creator_code:org_t)
Related titles
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In:Journal of Crystal Growth, Vol. 300: Elsevier BV, s. 223-2270022-0248
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Malinauskas, T.
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Aleksiejunas, R.
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Jarasiunas, K.
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Beaumont, B.
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Gibart, P.
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Kakanakova-Georg ...
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Janzén, Erik, 19 ...
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Gogova, Daniela, ...
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Monemar, Bo, 194 ...
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Heuken, M.
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Journal of Cryst ...
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Linköping University