Valence Band Splitting in Wurtzite InP Nanowires Observed by Photoluminescence and Photoluminescence Excitation Spectroscopy

Summary, in English

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.

• Författare: Gerben L. Tuin; Magnus Borgström; Johanna Trägårdh; Martin Ek; Reine Wallenberg; Lars Samuelson; Mats-Erik Pistol
• Avdelning/ar: Fasta tillståndets fysik; Centrum för analys och syntes; NanoLund: Centre for Nanoscience
• Publiceringsår: 2011
• Språk: Engelska
• Sidor: 159-163
• Publikation/Tidskrift/Serie: Nano Reseach
• Volym: 4
• Issue: 2
• Länkar: http://dx.doi.org/10.1007/s12274-010-0065-x
• Dokumenttyp: Artikel i tidskrift
• Förlag: Springer
• Ämne: Chemical Sciences; Condensed Matter Physics
• Nyckelord: wurtzite InP; photoluminescence; excitation spectroscopy; valence band; structure
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 1998-0124