Although many structures based on Snû2 nanowires have been demonstrated, there is a limitation towards practical application due to the unwanted contact potential between the metal electrode and the SnO2 nanowire. This is mostly due to the presence of the native oxide layer that acts as an insulator between the metal contact and the nanowire. In this study the contact properties between Ti/Au contacts and a single SnO2 nanowire was compared to the electrical properties of a contact without the oxide layer. RIE(Reactive Ion Etching) is used to selectively remove the oxide layer from the contact area. The SnO2 nanowires were synthesized by chemical vapor deposition (CVD) and dispersed on a Si/Si3N4 substrate. The Ti/Au (20nm/100nm) electrodes were formed by e-beam lithography, e-beam evaporation and a lift-off process.
|Number of pages||4|
|Journal||Transactions of the Korean Institute of Electrical Engineers|
|Publication status||Published - 2010 Jan|
- Contact potential
- Native oxide
ASJC Scopus subject areas
- Electrical and Electronic Engineering