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Search: WFRF:(Maeda J) > (2005-2009) > Extremely high quan...

  • Kamiyama, S. (author)

Extremely high quantum efficiency of donor-acceptor-pair emission in N-and-B-doped 6H-SiC

  • Article/chapterEnglish2006

Publisher, publication year, extent ...

  • AIP Publishing,2006
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:liu-36455
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-36455URI
  • https://doi.org/10.1063/1.2195883DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

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

Notes

  • High-efficiency visible light emission in N-and-B-doped 6H-SiC epilayers was observed in photoluminescence measurements at room temperature. The orange-yellow light emission due to the recombination of donor-acceptor pairs (DAPs) has a broad spectrum with a peak wavelength of 576 nm and a full width at half maximum of 110 nm at 250 K. The high B concentration of more than 1018 cm-3 improves the emission efficiency of the DAP recombination at a high temperature. Compared with the photoluminescence spectrum of GaN at 10 K, a high quantum efficiency of 95% was estimated for the highly B-doped sample. From time-resolved photoluminescence measurements, a DAP recombination time of 5.0 ms was obtained, which is in good agreement with the calculated value by the rate equation with the assumption of a 95% internal quantum efficiency. This is quite promising as a light-emitting medium by optical pumping, as well as monolithic light sources combined with nitride-based light-emitting diodes grown on the DA-doped SiC epilayer. © 2006 American Institute of Physics.

Subject headings and genre

  • NATURAL SCIENCES
  • NATURVETENSKAP

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

  • Maeda, T. (author)
  • Nakamura, Y. (author)
  • Iwaya, M. (author)
  • Amano, H. (author)
  • Akasaki, I. (author)
  • Kinoshita, H. (author)
  • Furusho, T. (author)
  • Yoshimoto, M. (author)
  • Kimoto, T. (author)
  • Suda, J. (author)
  • Henry, Anne,1959-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)annhe32 (author)
  • Ivanov, Ivan Gueorguiev,1955-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)ivaiv28 (author)
  • Bergman, Peder,1961-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)pedbe86 (author)
  • Monemar, Bo,1942-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)bomo46 (author)
  • Chichibu, S. (author)
  • Onuma, T. (author)
  • Linköpings universitetTekniska högskolan (creator_code:org_t)

Related titles

  • In:Journal of Applied Physics: AIP Publishing99:90021-89791089-7550

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