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Title: Modification of the optical and structural properties of ZnO nanowires by low-energy Ar+ ion sputtering
Authors: Allah, Rabie Fath
Ben, Teresa
González, David
Hortelano, Vanesa
Martínez Sacristán, Óscar
Plaza, Jose Luis
Issue Date: 2013
Publisher: Springer
Description: Producción Científica
Citation: Nanoscale Research Letters, 2013, 8:162
Abstract: 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.
Classification: Irradiación
ISSN: 1931-7573
Peer Review: SI
Sponsor: Ministerio de Ciencia e Innovación (Proyect MAT2010-15206) and the EU (COST Action MP0805)
Publisher Version:
Language: eng
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:DEP32 - Artículos de revista

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