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Indexed by:期刊论文

Date of Publication:2014-06-01

Journal:MATERIALS RESEARCH BULLETIN

Included Journals:SCIE、EI、Scopus

Volume:54

Page Number:6-12

ISSN No.:0025-5408

Key Words:ZnO nanorods; 3D nanostructure; SERS

Abstract:Based on the study of growth behavior of ZnO nanorods on the textured Si wafer, a new three-dimensional surface-enhanced Raman scattering substrate has been achieved by assembling Ag nanoparticles onto the ZnO nanorods to form a radial plasmonic nanostructure. It is found that the new substrate exhibits good performance in terms of high sensitivity and good reproducibility for surface-enhanced Raman scattering. The determined enhancement factor is in the order of 107 and the Raman spectra exhibit the remarkable consistency with the deviation below 5.0%. Compared to the substrate fabricated with ZnO nanorod array on the flat Si wafer, the new substrates have the higher utility of excitation light. Meanwhile, the new substrate is demonstrated to be recyclable after the irradiation of ultraviolet light. (C) 2014 Elsevier Ltd. All rights reserved.