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In this paper, we report on the feasibility of single nanowire devices fabrication by electron beam lithography. SnO 2 and ZnO nanowires bundles have been synthesized by vapor-liquid-solid technique, dispersed in isopropanol and then deposited on SiO 2 /Si substrates. Once the nanowire has been selected, the electrodes have been patterned on the photoresist by the electron beam. Finally, after Pt sputtering and subsequent lift-off, we have obtained samples with SnO 2 or ZnO nanowire and Pt electrodes deposited on it. The electrical characteristics of the devices have been preliminary investigated by DC measurements and impedance spectroscopy. The SnO 2 single nanowire devices show a good sensitivity to relative humidity. The ZnO single nanowire device shows three orders of magnitude increase of the current when exposed to UV light and a fast recovery of the baseline in air when the UV light is …
Publication date: 
3 Feb 2015

Maurizio Donarelli, Riccardo Milan, Matteo Ferroni, Guido Faglia, Elisabetta Comini, Giorgio Sberveglieri, Andrea Ponzoni, Camilla Baratto

Biblio References: 
Pages: 1-4
2015 XVIII AISEM Annual Conference