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Haibin Tang, Guowen Meng, Qing Huang, Zhuo Zhang, Zhulin Huang and Chuhong Zhu Arrays of Cone-Shaped ZnO Nanorods Decorated with Ag Nanoparticles as 3D Surface-Enhanced Raman Scattering Substrates for Rapid Detection of Trace Polychlorinated Biphenyls Advanced Functional Materials 22

Version of Record online: 2 DEC 2011 | DOI: 10.1002/adfm.201102274

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Small Ag nanoparticles and large Ag spheres are simultaneously sputtered uniformly onto the side surface and the top ends of cone-shaped ZnO-nanorods fabricated by ZnO-seeds-induced electrodeposition, respectively. The as-prepared 3D hybrid surface-enhanced Raman spectroscopy substrate manifests high detection sensitivity to rhodamine and a detection limit as low as 10−11 M to polychlorinated biphenyl 77—one of the highly toxic persistent organic pollutants.

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