Quantum efficiency of InAs/InP nanowire heterostructures grown on silicon substrates

Authors

  • Roman Anufriev,

    1. Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR5270-CNRS, INSA-Lyon, 7 avenue Jean Capelle, 69621 Villeurbanne, France
    Search for more papers by this author
  • Nicolas Chauvin,

    Corresponding author
    1. Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR5270-CNRS, INSA-Lyon, 7 avenue Jean Capelle, 69621 Villeurbanne, France
    • Phone: +33 (0)4 72 43 74 65, Fax: +33 (0)4 72 43 85 31

    Search for more papers by this author
  • Hammadi Khmissi,

    1. Université de Monastir, Laboratoire de Micro-Optoélectronique et Nanostructures (LMON), Faculté des Sciences, Avenue de l'environnement, 5019 Monastir, Tunisia
    Search for more papers by this author
  • Khalid Naji,

    1. Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR5270-CNRS, Ecole Centrale de Lyon, 36 avenue Guy de Collongue, 69134 Ecully, France
    Search for more papers by this author
  • Gilles Patriarche,

    1. Laboratoire de Photonique et de Nanostructures (LPN), UPR20-CNRS, route de Nozay, 91460 Marcoussis, France
    Search for more papers by this author
  • Michel Gendry,

    1. Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR5270-CNRS, Ecole Centrale de Lyon, 36 avenue Guy de Collongue, 69134 Ecully, France
    Search for more papers by this author
  • Catherine Bru-Chevallier

    1. Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR5270-CNRS, INSA-Lyon, 7 avenue Jean Capelle, 69621 Villeurbanne, France
    Search for more papers by this author

Abstract

original image

Photoluminescence (PL) quantum efficiency (QE) is experimentally investigated, using an integrating sphere, as a function of excitation power on both InAs/InP quantum rod nanowires (QRod-NWs) and radial quantum well nanowires (QWell-NWs) grown on silicon substrates. The measured values of the QE are compared with those of the planar analogues such as quantum dash and quantum well samples, and found to be comparable for the quantum well structures at relatively low power density. Further studies reveal that the values of QE of the QRod-NWs and QWell-NWs are limited by the low quality of the InP NW structure and the quality of radial quantum well, respectively. (© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Ancillary