RT info:eu-repo/semantics/article
T1 Modification of the optical and structural properties of ZnO nanowires by low-energy Ar+ ion sputtering
A1 Allah, Rabie Fath
A1 Ben, Teresa
A1 González, David
A1 Hortelano Santos, Vanesa
A1 Martínez Sacristán, Óscar
A1 Plaza, Jose Luis
K1 Irradiación
K1 Nanocables
K1 Física
K1 Irradiation
K1 Nanowires
AB The effects of low-energy (≤2 kV) Ar+ irradiation on the optical and structural properties of zinc oxide (ZnO) nanowires (NWs) grown by a simple and cost-effective low-temperature technique were investigated. Both photoluminescence spectra from ZnO NW-coated films and cathodoluminescence analysis of individual ZnO NWs demonstrated obvious evidences of ultraviolet/visible luminescent enhancement with respect to irradiation fluence. Annihilation of the thinner ZnO NWs after the ion bombardment was appreciated by means of high-resolution scanning electron microscopy and transmission electron microscopy (TEM), which results in an increasing NW mean diameter for increasing irradiation fluences. Corresponding structural analysis by TEM pointed out not only significant changes in the morphology but also in the microstructure of these NWs, revealing certain radiation-sensitive behavior. The possible mechanisms accounting for the decrease of the deep-level emissions in the NWs with the increasing irradiation fluences are discussed according to their structural modifications.
PB Springer
SN 1931-7573
YR 2013
FD 2013
LK http://uvadoc.uva.es/handle/10324/32429
UL http://uvadoc.uva.es/handle/10324/32429
LA eng
NO Nanoscale Research Letters, 2013, 8:162
NO Producción Científica
DS UVaDOC
RD 23-abr-2024