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  • Malinauskas, T. (author)

All-optical characterization of carrier lifetimes and diffusion lengths in MOCVD-, ELO-, and HVPE- grown GaN

  • Article/chapterEnglish2007

Publisher, publication year, extent ...

  • Elsevier BV,2007
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:liu-38848
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-38848URI
  • https://doi.org/10.1016/j.jcrysgro.2006.11.014DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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Classification

  • Subject category:ref swepub-contenttype
  • Subject category:kon swepub-publicationtype

Notes

  • 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

  • NATURAL SCIENCES
  • NATURVETENSKAP

Added entries (persons, corporate bodies, meetings, titles ...)

  • Aleksiejunas, R. (author)
  • Jarasiunas, K. (author)
  • Beaumont, B. (author)
  • Gibart, P. (author)
  • Kakanakova-Georgieva, Anelia,1970-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)aneka59 (author)
  • Janzén, Erik,1954-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)erija14 (author)
  • Gogova, Daniela,1967-Linköpings universitet,Tekniska högskolan,Institutionen för fysik, kemi och biologi(Swepub:liu)dango64 (author)
  • Monemar, Bo,1942-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)bomo46 (author)
  • Heuken, M. (author)
  • Linköpings universitetTekniska högskolan (creator_code:org_t)

Related titles

  • In:Journal of Crystal Growth, Vol. 300: Elsevier BV, s. 223-2270022-0248

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