Now showing items 1-3 of 3

    • Internal quantum efficiency of III-nitride quantum dot superlattices grown by plasma-assisted molecular-beam epitaxy 

      Gacevic, Z.; Das, A.; Teubert, Jörg; Kotsar, Y.; Kandaswamy, P. K.; Kehagias, T.; Koukoula, T.; Komninou, P.; Monroy, E. (2011)
      We present a study of the optical properties of GaN/AlN and InGaN/GaN quantum dot (QD) superlattices grown via plasma-assisted molecular-beam epitaxy, as compared to their quantum well (QW) counterparts. The three-dimens ...
    • A review of MBE grown 0D, 1D and 2D quantum structures in a nanowire 

      Mata, Maria de la; Zhou, Xiang; Furtmayr, Florian; Teubert, Jörg; Gradecak, Silvija; Eickhoff, Martin; Fontcuberta i Morral, Anna; Arbiol, Jordi (2013)
      We review different strategies to achieve a three-dimensional energy bandgap modulation in a nanowire (NW) by the introduction of self-assembled 0D, 1D and 2D quantum structures, quantum dots (QDs), quantum wires (QWRs) ...
    • Self-assembled GaN quantum wires on GaN/AlN nanowire templates 

      Arbiol, Jordi; Magen, Cesar; Becker, Pascal; Jacopin, Gwénolé; Chernikov, Alexey; Schäfer, Sören; Furtmayr, Florian; Tchernycheva, Maria; Rigutti, Lorenzo; Teubert, Jörg; Chatterjee, Sangam; Morante, Joan R.; Eickhoff, Martin (2012)
      We present a novel approach for self-assembled growth of GaN quantum wires (QWRs) exhibiting strong confinement in two spatial dimensions. The GaN QWRs are formed by selective nucleation on {11 (2) over bar0} (a-plane) ...