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Remote-Excitation Time-Dependent Surface Catalysis Reaction Using Plasmonic Waveguide on Sites of Single-Crystalline Crossed Nanowires |
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| Authors: | Peng Song Yuanzuo Li Yongqing Li Meiyu Zhao Liwei Liu Mengtao Sun |
| Institution: | 1. Department of Physics, Liaoning University, Shenyang, 110036, People’s Republic of China 2. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603-146, Beijing, 100190, People’s Republic of China 3. College of Science, Northeast Forestry University, Harbin, 150040, People’s Republic of China 4. Institute of Theoretical Simulation Chemistry, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin, 150080, People’s Republic of China 5. Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215125, People’s Republic of China |
| Abstract: | The remote-excitation polarization-dependent surface enhanced Raman scattering (SERS) induced by plasmonic waveguide is used to investigate the surface catalysis reaction of 4-nitrobenzenethiol converting to p,p′-dimercaptoazobenzene. The propagating surface plasmon polaritons along single-crystalline nanowires can be coupled by the crossed nanowire as nanoantenna for generating massive electromagnetic field enhancement in the nanogap. The remote-excitation SERS spectra in the nanogap reveal the occurrence of a surface catalysis reaction. The time-dependent remote-excitation SERS spectra further confirmed such surface catalysis reaction. This novel sensitive technology could lead to miniaturized photonics and realize high-resolution microscopy/spectroscopy used in the field of remote catalysis reaction. |
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