Journal
MATERIALS CHARACTERIZATION
Volume 60, Issue 11, Pages 1400-1405Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2009.05.003
Keywords
Germanium nanowires; Hydrothermal deposition; Characterizations
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Funding
- National Basic Research Program of China [2008CB617605]
- New Century Excellent Talents in University of China [NCET-06-0556]
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Smooth germanium nanowires were prepared using Ge and GeO2 as the starting materials and Cu sheet as the substrate by a simple hydrothermal deposition process. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) characterizations show that the germanium nanowires are smooth and straight with uniform diameter of about 150 nm in average and tens of micrometers in length. X-ray diffraction (XRD) and Raman spectrum of the germanium nanowires display that the germanium nanowires are mainly composed of cubic diamond phase. PL spectrum shows a strong blue light emission at 441 nm. The growth mechanism is also discussed. (C) 2009 Published by Elsevier Inc.
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