Wong, HS and Tan, SC and Wang, N and Durkan, C (2012) Hydrothermally-grown ZnO nanowire tips for scanning tunnelling microscopy. J Nanosci Nanotechnol, 12. pp. 2394-2398. ISSN 1533-4880Full text not available from this repository.
The probe tip is pivotal in determining the resolution and nature of features observed in the Scanning Tunnelling Microscope (STM). We have augmented a conventional Pt/Ir metallic tip with a hydrothermally grown ZnO nanowire (NW). Atomic resolution imaging of graphite is attained. Current-voltage (IV) characteristics demonstrate an asymmetry stemming from the unintentional n-type doping of the ZnO NW, whereas the expected Schottky barrier at the ZnO-Pt/Ir interface is shown to have negligible effect. Moreover the photoconductivity of the system is investigated, paving the way towards a photodetector capable of atomic resolution.
|Depositing User:||Cron job|
|Date Deposited:||04 Feb 2015 22:16|
|Last Modified:||30 Mar 2015 01:34|