Chemical Research in Chinese Universities ›› 2017, Vol. 33 ›› Issue (1): 135-142.doi: 10.1007/s40242-017-6034-0

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Interfacial Self-assembly Approach of Plasmonic Nanostructures for Efficient SERS and Recyclable Catalysts Applications

GUO Pengzhen1, HUANG Xiqiang1, LI Lifang2, ZHAO Sheng3   

  1. 1. Department of Physics, Harbin Institute of Technology, Harbin 150080, P. R. China;
    2. Research Center of Basic Space Science, Harbin Institute of Technology, Harbin 150080, P. R. China;
    3. National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150080, P. R. China
  • Received:2016-01-26 Revised:2016-04-12 Online:2017-02-01 Published:2016-05-30
  • Contact: HUANG Xiqiang,E-mail:huangxq@hit.edu.cn E-mail:huangxq@hit.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.51405112) and the China Postdoctoral Science Founda-tion(Nos.2015T80336, 2014M551229).

Abstract:

We reported on a simple and general interfacial self-assembly approach to fabricate plasmonic superlattice sheets in extremely large scale, which can be up to ca. 50 cm2, based on different types of noble metal nanoparticles. The self-assembled nanofilms exhibit exciting plasmonic properties with mirror-like reflectance, represented by vivid colour changes. More important, such superlattice sheets can be easily transferred and explored as highly efficient shape-dependent surface enhanced raman scattering(SERS) substrates, as well as flexible and recyclable shape-dependent substrate-supporting nanocatalysts sheets. The conversion of 4-NPH were kept as high as 95% after the nanocatalyst sheets were used for six cycles. The interfacial self-assembly method can be exploited for development of optical and nanocatalysts devices such as flexible colour filters, molecular sensors and flexible plasmonic nanofilms.

Key words: Plasmonic, Interfacial self-assembly, Surface Enhanced Raman Scattering(SERS), Recyclable nanocatalysts, Noble nanoparticle