TY - JOUR
T1 - Luminescence of as-grown and thermally annealed GaAsN/GaAs
AU - Francoeur, S.
AU - Sivaraman, G.
AU - Qiu, Y.
AU - Nikishin, S.
AU - Temkin, H.
N1 - Copyright:
Copyright 2005 Elsevier B.V., All rights reserved.
PY - 1998
Y1 - 1998
N2 - We report a study of the luminescence properties of coherently strained GaAs1-xNx grown on GaAs by metalorganic molecular beam epitaxy. Well-defined photoluminescence was observed in samples with a nitrogen concentration up to 3%. Samples subjected to thermal anneals, investigated by x-ray diffraction and photoluminescence, show increased nitrogen incorporation and significant improvements in the luminescence efficiency. A band-gap reduction of more than 400 meV, compared to GaAs, is observed for a nitrogen concentration of ∼3%. For the range of nitrogen concentrations investigated here, the band gap follows predictions of the dielectric model of Van Vechten [J. A. Van Vechten and T. K. Bergstresser, Phys. Rev. B 1, 3351 (1970), and references therein].
AB - We report a study of the luminescence properties of coherently strained GaAs1-xNx grown on GaAs by metalorganic molecular beam epitaxy. Well-defined photoluminescence was observed in samples with a nitrogen concentration up to 3%. Samples subjected to thermal anneals, investigated by x-ray diffraction and photoluminescence, show increased nitrogen incorporation and significant improvements in the luminescence efficiency. A band-gap reduction of more than 400 meV, compared to GaAs, is observed for a nitrogen concentration of ∼3%. For the range of nitrogen concentrations investigated here, the band gap follows predictions of the dielectric model of Van Vechten [J. A. Van Vechten and T. K. Bergstresser, Phys. Rev. B 1, 3351 (1970), and references therein].
UR - http://www.scopus.com/inward/record.url?scp=0000800681&partnerID=8YFLogxK
U2 - 10.1063/1.121206
DO - 10.1063/1.121206
M3 - Article
AN - SCOPUS:0000800681
VL - 72
SP - 1857
EP - 1859
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 15
ER -