A simple procedure to selectively grow zinc oxide nanowires (ZnO NWs) on a large scale without any catalyst is reported. The process is based on the use of a zinc metal layer deposited onto substrates before the NW growth. The zinc layer, which becomes liquid at the synthesis temperature, favours the correct local conditions for a selective growth of pure ZnO NWs in an effective area of several square centimetres (up to 20 cm2 in our laboratory-scale reactor). The proposed method is suitable for patterned ZnO NW synthesis.
Large-area self-catalysed and selective growth of ZnO nanowires
Zha M;Calestani D;Zappettini A;Mosca R;Lazzarini L;Zanotti L
2008
Abstract
A simple procedure to selectively grow zinc oxide nanowires (ZnO NWs) on a large scale without any catalyst is reported. The process is based on the use of a zinc metal layer deposited onto substrates before the NW growth. The zinc layer, which becomes liquid at the synthesis temperature, favours the correct local conditions for a selective growth of pure ZnO NWs in an effective area of several square centimetres (up to 20 cm2 in our laboratory-scale reactor). The proposed method is suitable for patterned ZnO NW synthesis.File in questo prodotto:
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