Local field enhancement dependence on nanoparticle's geometry in Au/TiO2/Ti/Si SERS-active substrate for biochemical sensors

Hui Wen Cheng*, Yiming Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work, we study the effect of surface roughness and shape of Au nanoparticles on the local field enhancement of SERS-active substrates. Our 3D FDTD simulation predicts that the substrate with roughened surface exhibits large field enhancement, especially for cubic shape of nanoparticle. The field enhancement of spherical and cubic nanoparticles is enlarged by Au/Ag alloy and Au nanocage structure which is useful for biochemical sensing applications.

Original languageEnglish
Title of host publication4th IEEE International NanoElectronics Conference, INEC 2011
DOIs
StatePublished - 2011
Event4th IEEE International Nanoelectronics Conference, INEC 2011 - Tao-Yuan, Taiwan
Duration: 21 Jun 201124 Jun 2011

Publication series

NameProceedings - International NanoElectronics Conference, INEC
ISSN (Print)2159-3523

Conference

Conference4th IEEE International Nanoelectronics Conference, INEC 2011
CountryTaiwan
CityTao-Yuan
Period21/06/1124/06/11

Keywords

  • 3D finite-difference time-domain simulation
  • Au nanoparticle
  • field enhancement
  • hydrothermal treatment
  • Maxwell's equation

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    Cheng, H. W., & Li, Y. (2011). Local field enhancement dependence on nanoparticle's geometry in Au/TiO2/Ti/Si SERS-active substrate for biochemical sensors. In 4th IEEE International NanoElectronics Conference, INEC 2011 [5991779] (Proceedings - International NanoElectronics Conference, INEC). https://doi.org/10.1109/INEC.2011.5991779