Nano Research

, Volume 4, Issue 2, pp 159–163

Valence band splitting in wurtzite InP nanowires observed by photoluminescence and photoluminescence excitation spectroscopy

Authors

    • Solid State Physics/Nanometer Structure ConsortiumLund University
  • Magnus T. Borgström
    • Solid State Physics/Nanometer Structure ConsortiumLund University
  • Johanna Trägårdh
    • Solid State Physics/Nanometer Structure ConsortiumLund University
  • Martin Ek
    • Polymer & Materials Chemistry/nCHREMLund University
  • L. Reine Wallenberg
    • Polymer & Materials Chemistry/nCHREMLund University
  • Lars Samuelson
    • Solid State Physics/Nanometer Structure ConsortiumLund University
    • Solid State Physics/Nanometer Structure ConsortiumLund University

DOI: 10.1007/s12274-010-0065-x

Abstract

We have investigated individual bulk-like wires of wurtzite InP using photoluminescence, photoluminescence excitation spectroscopy and transmission electron microscopy. Using two different methods we find that the top of the valence band is split, as expected theoretically. This splitting of the valence band is peculiar to wurtzite InP and does not occur in zinc blende InP. We find the energy difference between the two bands to be 40 meV.

Keywords

wurtzite InP photoluminescence excitation spectroscopy valence band structure

Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2010