RT Journal Article
T1 Scanning tunnelling spectroscopy characterization of ZnO single crystals
A1 Urbieta Quiroga, Ana Irene
A1 Fernández Sánchez, Paloma
A1 Piqueras De Noriega, Francisco Javier
A1 Sekiguchi, T.
AB Bulk ZnO single crystals grown by the hydrothermal and flux methods have been characterized by scanning tunnelling spectroscopy performed in the different crystalline faces. Normalized differential conductance has been found to depend on the face considered. Polar O-terminated surfaces show an intrinsic conduction behaviour and surface bandgap in the range 0.4-0.8 eV, which depends on the position probed. The Zn polar surfaces show mainly n-type conduction. The non-polar m regions present either intrinsic or p-type behaviour. The differences observed are attributed to the nature of impurities and defects appearing in the polar and non-polar surfaces during crystal growth.
PB IOP Publishing Ltd
SN 0268-1242
YR 2001
FD 2001-07
LK https://hdl.handle.net/20.500.14352/59124
UL https://hdl.handle.net/20.500.14352/59124
LA eng
NO © 2001 IOP Publishing Ltd.This work was supported by MCYT –DGI (ProjectMAT2000-2119). Thanks are due to Professor N Sakagami (Akita National College of Technology, Japan) and Professor S Miyashita (Toyama Medical and Pharmaceutical University, Japan) for their contribution to crystal preparation.
NO MCYT–DGI
DS Docta Complutense
RD 13 jun 2025