Probing the Wurtzite Conduction Band Structure Using State Filling in Highly Doped InP Nanowires.
Författare
Summary, in English
We have grown InP nanowires doped with hydrogen sulfide, which exhibit sulfur concentrations of up to 1.4%. The highest doped nanowires show a pure wurtzite crystal structure, in contrast to bulk InP which has the zinc blende structure. The nanowires display photoluminescence which is strongly blue shifted compared with the band gap, well into the visible range. We find evidence of a second conduction band minimum at the gamma point about 0.23 eV above the band edge, in excellent agreement with recent theoretical predictions. Electrical measurements show high conductivity and breakdown currents of 10(7) A/cm(2).
Publiceringsår
2011
Språk
Engelska
Sidor
2286-2290
Publikation/Tidskrift/Serie
Nano Letters
Volym
11
Issue
Online May 23, 2011
Dokumenttyp
Artikel i tidskrift
Förlag
The American Chemical Society (ACS)
Ämne
- Nano Technology
- Condensed Matter Physics
Status
Published
Forskningsgrupp
- Nanometer structure consortium (nmC)
ISBN/ISSN/Övrigt
- ISSN: 1530-6992