Acta Optica Sinica, Volume. 41, Issue 16, 1624001(2021)

Fabrication and Surface-Enhanced Raman Spectroscopy Performance of Three-Dimensional Cu(OH)2-Ag Substrate

Erwei Liu1, Xia Fan2, Yuanping Huang1, Yapeng Fan1, and Zengling Yang1、*
Author Affiliations
  • 1College of Engineering, China Agricultural University, Beijing 100083, China
  • 2China National Feed Quality Control Center, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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    Figures & Tables(8)
    Schematic of Cu(OH)2-Ag substrate fabrication process
    Characterization of Cu(OH)2-Ag substrate. (a) TEM image of Ag NPs; (b) SEM image of the Cu(OH)2-Ag substrate; (c) XRD patterns of Cu(OH)2 and Cu(OH)2-Ag substrate; (d) distribution of Ag elements on the Cu(OH)2-Ag substrate; (e) distribution of Cu elements on the Cu(OH)2-Ag substrate; (f) energy dispersive spectrum of the Cu(OH)2-Ag substrate
    Influence of etching time on the surface morphology of Cu(OH)2 and Raman enhancement performance of Cu(OH)2-Ag substrate. (a)--(e) SEM images of Cu(OH)2 at different etching time; (f) Raman spectra of R6G with mass concentration of 10-6 g/L on Cu(OH)2-Ag substrates with different etching time
    Influence of self-assembly time on the Raman enhancement performance of Cu(OH)2-Ag substrate. (a)--(f) SEM images of Cu(OH)2-Ag substrates at different self-assembly time; (g) Ag content of Cu(OH)2-Ag substrates at different self-assembly time; (h) Raman spectra of R6G with mass concentration of 10-6 g/L on Cu(OH)2-Ag substrates with different self-assembly time
    SERS spectra of R6G. (a) Raman spectra of R6G with different mass concentration on different substrates; (b) Raman spectra of R6G with different mass concentration on Cu(OH)2-Ag substrate; (c) relationship between the logarithm of mass concentration and Raman intensity at 612 cm-1 of R6G
    SERS performance of Cu(OH)2-Ag substrate. (a) Raman spectra of R6G (10-6 g/L mass concentration) collected at 13 randomly selected points on the substrate; (b) Raman mapping of R6G on the substrate at 612 cm-1; (c) peak intensity variation at 612 cm-1 for 13 points; (d) peak intensity variation of R6G spectra at 612 cm-1 on the substrates with different batches; (e) peak intensity variation of R6G at 612 cm-1 at different storage times
    SERS of MG. (a) Raman spectra of MG with different mass concentration in river water on Cu(OH)2-Ag substrate; (b) relationship between the logarithm of mass concentration and Raman intensity at 1614 cm-1 of MG
    • Table 1. Comparison of different SERS substrates for detecting MG

      View table

      Table 1. Comparison of different SERS substrates for detecting MG

      SERS substrateSampleLaser wavelength /nmEFLOD /(mol·L-1)Reference
      MIP@Fe3O4-AgWater5321.5×10-12[33]
      Fe3O4@Au MCSWater632.81.1×10510-7[34]
      Ag NPs-coated fiber probeWater632.810-11[35]
      pNIPAM@Au NRsWater6331.2×1051.3×10-9[36]
      Graphene wrapped Ag arrayWater5323.9×1082.7×10-11[37]
      Au/Ag NPsWater7859.0×1074.3×10-9[38]
      Ag/MoS2-TiWater53210-8[39]
      Cu(OH)2-AgWater5321.28×1095.84×10-11This paper
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    Erwei Liu, Xia Fan, Yuanping Huang, Yapeng Fan, Zengling Yang. Fabrication and Surface-Enhanced Raman Spectroscopy Performance of Three-Dimensional Cu(OH)2-Ag Substrate[J]. Acta Optica Sinica, 2021, 41(16): 1624001

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    Paper Information

    Category: Optics at Surfaces

    Received: Feb. 5, 2021

    Accepted: Mar. 19, 2021

    Published Online: Aug. 12, 2021

    The Author Email: Yang Zengling (yangzengling@cau.edu.cn)

    DOI:10.3788/AOS202141.1624001

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