Controlled growth of vertical ZnO nanowires on copper substrate

Controlled growth of vertical ZnO nanowires on copper substrate

We present an approach for diameter control of vertically aligned ZnO nanowires (NWs) grown directly on copper substrates. Vapor-solid growth was done at 550 °C with solid Zn precursor under Ar/O2 flow, and the resulting nanowires with in situ-controllable diameters ranged between 50 to 500 nm. The...

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Veröffentlicht in:Applied physics letters 2013-02, Vol.102 (8)
Hauptverfasser: Ngo-Duc, Tam-Triet, Gacusan, Jovi, Kobayashi, Nobuhiko P., Sanghadasa, Mohan, Meyyappan, M., Oye, Michael M.
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container_issue 8
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container_title Applied physics letters
container_volume 102
creator Ngo-Duc, Tam-Triet
Gacusan, Jovi
Kobayashi, Nobuhiko P.
Sanghadasa, Mohan
Meyyappan, M.
Oye, Michael M.
description We present an approach for diameter control of vertically aligned ZnO nanowires (NWs) grown directly on copper substrates. Vapor-solid growth was done at 550 °C with solid Zn precursor under Ar/O2 flow, and the resulting nanowires with in situ-controllable diameters ranged between 50 to 500 nm. The nanowires were observed to elongate in tip growth and diameters were directly controlled by varying the oxygen concentration. Direct growth of vertical wires on metal substrates is expected to be useful to construct piezoelectric devices and applications involving sensors and detectors.
doi_str_mv 10.1063/1.4793758
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title Controlled growth of vertical ZnO nanowires on copper substrate
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