Type I band alignment in the GaNxAs1-x/GaAs quantum wells
2001 (English)Article in journal (Refereed) Published
Three independent experimental techniques, namely, time-resolved photoluminescence (PL) spectroscopy, PL polarization, and optically detected cyclotron resonance, are employed to determine the band alignment of GaNxAS1-x/GaAs quantum structures with a low-N composition. It is concluded that band lineup is type I based on the following experimental results: (i) comparable radiative decay time of the GaNAs-related emission measured from single GaNAs epilayers and from GaNAs/GaAs quantum well (QW) structures, (ii) polarization of the GaNAs-related emission, and (iii) spatial confinement of the photoexcited holes within the GaNAs layers under resonant excitation of the GaNAs QW's.
Place, publisher, year, edition, pages
2001. Vol. 63, no 3, 333031-333034 p.
National CategoryNatural Sciences
IdentifiersURN: urn:nbn:se:liu:diva-45105Local ID: 79714OAI: oai:DiVA.org:liu-45105DiVA: diva2:265967