Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3097029
Keywords
copper compounds; ferromagnetic materials; field effect transistors; magnetic semiconductors; nanofabrication; nanowires; photoconductivity; photoluminescence; reduction (chemical); semiconductor materials
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Funding
- Singapore Millennium Foundation
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Cu2O nanowires are synthesized by reduction of CuO nanowires with hydrogen gas. Strong green photoluminescence dominated by band-edge emission is observed. Field effect transistors fabricated from individual Cu2O nanowires present high on-off ratio (>10(6)) and high mobility (>95 cm(2)/V s). Furthermore, the device demonstrates a fast photoelectric response to blue illumination in air at room temperature. In addition, anomalous ferromagnetism appears in Cu2O nanowires, which may originate from the defects in Cu2O nanowires. This work shows the application potentials of the Cu2O nanowires, especially in an electrical and photonic device.
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