P -type electrical, photoconductive, and anomalous ferromagnetic properties of Cu2 O nanowires

L. Liao, B. Yan, Y. F. Hao, G. Z. Xing, J. P. Liu, B. C. Zhao, Z. X. Shen, Tao Wu, L. Wang, J. T.L. Thong, C. M. Li, W. Huang, T. Yu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

98 Scopus citations

Abstract

Cu2 O 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 Cu2 O nanowires present high on-off ratio (> 106) and high mobility (>95 cm2 /V s). Furthermore, the device demonstrates a fast photoelectric response to blue illumination in air at room temperature. In addition, anomalous ferromagnetism appears in Cu2 O nanowires, which may originate from the defects in Cu2 O nanowires. This work shows the application potentials of the Cu2 O nanowires, especially in an electrical and photonic device.

Original languageEnglish (US)
Article number113106
JournalApplied Physics Letters
Volume94
Issue number11
DOIs
StatePublished - Mar 31 2009

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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