Fe-catalytic growth of ZnSe nanowires on a ZnSe(001) surface at low temperatures by molecular-beam epitaxy
- Department of Physics, Graduate School of Science, Osaka University, 1-1, Machikane-yama, Toyonaka, Osaka 560-0043 (Japan)
We grew ZnSe needle-like nanowires on a ZnSe/GaAs epilayer using Fe catalysts by means of molecular-beam epitaxy operated at low temperatures of 250-350 deg. C, which are comparable to the usual temperatures for fabrication of ZnSe-based optoelectronic devices. The diameters at the tops of the nanowires ranged from 8 to 20 nm, and the typical length was about 200 nm. The number density of the nanowires was the order of 10{sup 9} cm{sup -2}. A nanowire was the zinc blende structure and the longitudinal direction was <001>,<111>,<110>, or <112>. Photoluminescence spectroscopy implied that the optical property of the nanowires differs from that of the bulk crystals.
- OSTI ID:
- 20702512
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 4 Vol. 87; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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