中国物理B ›› 2018, Vol. 27 ›› Issue (1): 17801-017801.doi: 10.1088/1674-1056/27/1/017801

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

A general method for large-scale fabrication of Cu nanoislands/dragonfly wing SERS flexible substrates

Yuhong Wang(王玉红), Mingli Wang(王明利), Lin Shen(沈琳), Yanying Zhu(朱艳英), Xin Sun(孙鑫), Guochao Shi(史国超), Xiaona Xu(许晓娜), Ruifeng Li(李瑞峰), Wanli Ma(马万里)   

  1. 1 Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao 066004, China;
    2 Liren College of Yanshan University, Qinhuangdao 066004, China;
    3 Department of Mathematics, NC State University, Raleigh 276968205, USA
  • 收稿日期:2017-05-21 修回日期:2017-09-24 出版日期:2018-01-05 发布日期:2018-01-05
  • 通讯作者: Mingli Wang E-mail:wml@ysu.edu.cn
  • 基金资助:
    Project supported by the Youth Fund Project of University Science and Technology Plan of Hebei Provincial Department of Education, China (Grant No. QN2015004) and the Doctoral Fund of Yanshan University, China (Grant No. B924).

A general method for large-scale fabrication of Cu nanoislands/dragonfly wing SERS flexible substrates

Yuhong Wang(王玉红)1, Mingli Wang(王明利)1, Lin Shen(沈琳)2, Yanying Zhu(朱艳英)1, Xin Sun(孙鑫)1, Guochao Shi(史国超)1, Xiaona Xu(许晓娜)1, Ruifeng Li(李瑞峰)1, Wanli Ma(马万里)3   

  1. 1 Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao 066004, China;
    2 Liren College of Yanshan University, Qinhuangdao 066004, China;
    3 Department of Mathematics, NC State University, Raleigh 276968205, USA
  • Received:2017-05-21 Revised:2017-09-24 Online:2018-01-05 Published:2018-01-05
  • Contact: Mingli Wang E-mail:wml@ysu.edu.cn
  • Supported by:
    Project supported by the Youth Fund Project of University Science and Technology Plan of Hebei Provincial Department of Education, China (Grant No. QN2015004) and the Doctoral Fund of Yanshan University, China (Grant No. B924).

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摘要： Noble metal nanorough surfaces that support strong surface-enhanced Raman scattering (SERS) is widely applied in the practical detection of organic molecules. A low-cost, large-area, and environment-friendly SERS-active substrate was acquired by sputtering inexpensive copper (Cu) on natural dragonfly wing (DW) with an easily controlled way of magnetron sputtering. By controlling the sputtering time of the fabrication of Cu on the DW, the performance of the SERS substrates was greatly improved. The SERS-active substrates, obtained at the optimal sputtering time (50 min), showed a low detection limit (10-6M) to 4-aminothiophenol (4-ATP), a high average enhancement factor (EF, 1.98×104), excellent signal uniformity, and good reproducibility. In addition, the results of the 3D finite-difference time-domain (3D-FDTD) simulation illustrated that the SERS-active substrates provided high-density “hot spots”, leading to a large SERS enhancement.

关键词: surface-enhanced Raman scattering, dragonfly wing, copper, magnetron sputtering

Abstract: Noble metal nanorough surfaces that support strong surface-enhanced Raman scattering (SERS) is widely applied in the practical detection of organic molecules. A low-cost, large-area, and environment-friendly SERS-active substrate was acquired by sputtering inexpensive copper (Cu) on natural dragonfly wing (DW) with an easily controlled way of magnetron sputtering. By controlling the sputtering time of the fabrication of Cu on the DW, the performance of the SERS substrates was greatly improved. The SERS-active substrates, obtained at the optimal sputtering time (50 min), showed a low detection limit (10-6M) to 4-aminothiophenol (4-ATP), a high average enhancement factor (EF, 1.98×104), excellent signal uniformity, and good reproducibility. In addition, the results of the 3D finite-difference time-domain (3D-FDTD) simulation illustrated that the SERS-active substrates provided high-density “hot spots”, leading to a large SERS enhancement.

Key words: surface-enhanced Raman scattering, dragonfly wing, copper, magnetron sputtering

中图分类号:  (Infrared and Raman spectra)

  • 78.30.-j
74.25.nd (Raman and optical spectroscopy) 61.46.-w (Structure of nanoscale materials)