|Title:||High performance and reusable SERS substrates using Ag/ZnO heterostructure on periodic silicon nanotube substrate||Authors:||Lai Y.-C.
|Keywords:||Atomic layer deposition;Photocatalyst;Silicon nanotubes;Surface-enhanced Raman scattering;Textured substrate;ZnO nanowires||Issue Date:||2018||Journal Volume:||439||Start page/Pages:||852-858||Source:||Applied Surface Science||Abstract:||
Surface-enhanced Raman scattering (SERS) substrate with a higher surface area, enhanced light harvesting, multiple hot spots and strong electromagnetic field enhancements would exhibit enhanced Raman signals. Herein, the Ag nanoparticle/ZnO nanowire heterostructure decorated periodic silicon nanotube (Ag@ZnO@SiNT) substrate was proposed and fabricated. The proposed structure employed as SERS-active substrate was examined, and the results showed both the high performance in terms of high sensitivity and good reproducibility. Furthermore, the Ag@ZnO@SiNT substrate demonstrated the self-cleaning performance through the photocatalytic degradation of probed molecules upon UV-irradiation. The results showed that the proposed nanostructure had high performance, good reproducibility and reusability, and it is a promising SERS-active substrate for molecular sensing and cleaning. ? 2018 Elsevier B.V.
|Appears in Collections:||材料科學與工程學系|
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