Research Article

Nano Research

, Volume 4, Issue 2, pp 159-163

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

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

  • Gerben L. TuinAffiliated withSolid State Physics/Nanometer Structure Consortium, Lund University Email author 
  • , Magnus T. BorgströmAffiliated withSolid State Physics/Nanometer Structure Consortium, Lund University
  • , Johanna TrägårdhAffiliated withSolid State Physics/Nanometer Structure Consortium, Lund University
  • , Martin EkAffiliated withPolymer & Materials Chemistry/nCHREM, Lund University
  • , L. Reine WallenbergAffiliated withPolymer & Materials Chemistry/nCHREM, Lund University
  • , Lars SamuelsonAffiliated withSolid State Physics/Nanometer Structure Consortium, Lund University
  • , Mats-Erik PistolAffiliated withSolid State Physics/Nanometer Structure Consortium, Lund University Email author 

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