Fabrication and SERS Performance of Silver-Nanoparticle-Decorated Si/ZnO Nanotrees in Ordered Arrays
ACS Applied Materials & Interfaces2010Vol. 2(7), pp. 1824–1828
Citations Over TimeTop 10% of 2010 papers
Chuanwei Cheng, Bin Yan, She Mein Wong, Xianglin Li, Weiwei Zhou, Ting Yu, Zexiang Shen, H.Y. Yu, Hong Jin Fan
Abstract
Highly ordered treelike Si/ZnO hierarchical nanostructures are successfully prepared in a large scale by combining two common techniques, viz., photolithography-assisted wafer-scale fabrication of Si nanopillars and bottom-up hydrothermal growth of ZnO nanorods. Silver nanoparticles are decorated onto the nanotrees by photochemical reduction and deposition. The Si/ZnO/Ag hybrid nanotrees are employed as SERS-active substrates, which exhibit good performance in terms of high sensitivity and good reproducibility. In addition to the SERS application, such ordered Si/ZnO arrays might also find potential applications in light-emitting diodes and solar cells.
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