Surface Enhanced Raman Scattering Substrates Based on Femtosecond Laser Structured Polytetrafluoroethylene

Xufei Liu; Dan'ao Han; Hui Guo; Yonglai Zhang

doi:10.3788/LOP202158.2314011

Journals >Laser & Optoelectronics Progress >Volume 58 >Issue 23 >Page 2314011 > Article

Laser & Optoelectronics Progress
Vol. 58, Issue 23, 2314011 (2021)

Surface Enhanced Raman Scattering Substrates Based on Femtosecond Laser Structured Polytetrafluoroethylene

Xufei Liu¹, Dan'ao Han², Hui Guo³, and Yonglai Zhang^2、*

Author Affiliations

¹State Grid Jilin Electric Power Co., Ltd., Changchun, Jilin 130000, China

²College of Electronic Science and Engineering, Jilin University, Changchun, Jilin, 130012, China

³State Grid Jilin Electric Power Research Institute, Changchun, Jilin 130021, China

show less

DOI: 10.3788/LOP202158.2314011 Cite this Article Set citation alerts

Xufei Liu, Dan'ao Han, Hui Guo, Yonglai Zhang. Surface Enhanced Raman Scattering Substrates Based on Femtosecond Laser Structured Polytetrafluoroethylene[J]. Laser & Optoelectronics Progress, 2021, 58(23): 2314011 Copy Citation Text

show less

Abstract

The surface of polytetrafluoroethylene (PTFE) was ablated by femtosecond laser, and then the surface enhanced Raman scattering (SERS) substrate was prepared by depositing silver nanoparticles on the surface of laser structured PTFE substrate. By adjusting the scanning path of femtosecond laser, PTFE substrates with one-dimensional grating structure and two-dimensional grating structure are obtained, respectively. After coating a thin layer of silver nanoparticles, the two-dimensional grating structure of polytetrafluoroethylene substrate can serve as a SERS substrate, which shows much better SERS enhancement, about three times higher than that based on one-dimensional grating structure.

Keywords

laser technology microstructure polytetrafluoroethylene surface enhanced Raman scattering substrate