Javascript is not activated in your browser. This website needs javascript activated to work properly.
Du är här

Photoluminescence of Mg-doped m-plane GaN grown by MOCVD on bulk GaN substrates

Publiceringsår: 2011
Språk: Engelska
Sidor: 1532-1534
Publikation/Tidskrift/Serie: Physica Status Solidi - A
Volym: 208
Nummer: 7
Dokumenttyp: Artikel
Förlag: Wiley-Blackwell Publishing, Inc


Photoluminescence (PL) properties are reported for a set of m-plane GaN films with Mg doping varied from mid 10(18) cm(-3) to above 10(20) cm(-3). The samples were grown with MOCVD at reduced pressure on low defect density bulk GaN templates. The sharp line near bandgap bound exciton (BE) spectra observed below 50K, as well as the broader donor-acceptor pair (DAP) PL bands at 2.9-3.3eV give evidence of several Mg related acceptors, similar to the case of c-plane GaN. The dependece of the BE spectra on excitation intensity as well as the transient decay behaviour demonstrate acoustic phonon assisted transfer between the acceptor BE states. The lower energy donor-acceptor pair spectra suggest the presence of deep acceptors, in addition to the two main shallower ones at about 0.23eV Similar spectra from Mg-doped GaN nanowires (NWs) grown by MOCVD are also briefly disussed. (C) 2011 WILEY-VCH Verlag Gmbh & Co. KGaA, Weinheim



  • Technology and Engineering
  • GaN
  • Mg-doping
  • m-plane
  • nanowire
  • photoluminescence


  • ISSN: 1862-6300

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen