High Surface-Enhanced Raman Scattering (SERS) sensitivity of R6G by fabrication of silver nanoparticles over GaN nanowires

Nitzan Dar, Wen Jing Wang, Kuo Hao Lee, In-Gann Chen

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

6 Citations (Scopus)

Abstract

A composite structure made of Ag nanoparticles adsorbed on GaN nanowires were used as a Surface-Enhanced Raman Scattering (SERS) substrate. With Rhodamine 6G used as a SERS probe, high enhancement factor of 9*10 11 was derived. Detection limit as low as 10 -12M was observed. Intensity of the SERS was correlated to the adsorbing pattern of the Ag nanoparticles. Low Ag coverage corresponded to isolated spherical Ag nanoparticles, which intensify the SERS. High Ag coverage, however, corresponded to larger particles and island growth, which causes low SERS magnification.

Original languageEnglish
Title of host publication2011 11th IEEE International Conference on Nanotechnology, NANO 2011
Pages297-300
Number of pages4
DOIs
Publication statusPublished - 2011 Dec 1
Event2011 11th IEEE International Conference on Nanotechnology, NANO 2011 - Portland, OR, United States
Duration: 2011 Aug 152011 Aug 19

Publication series

NameProceedings of the IEEE Conference on Nanotechnology
ISSN (Print)1944-9399
ISSN (Electronic)1944-9380

Other

Other2011 11th IEEE International Conference on Nanotechnology, NANO 2011
CountryUnited States
CityPortland, OR
Period11-08-1511-08-19

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All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Electrical and Electronic Engineering
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Dar, N., Wang, W. J., Lee, K. H., & Chen, I-G. (2011). High Surface-Enhanced Raman Scattering (SERS) sensitivity of R6G by fabrication of silver nanoparticles over GaN nanowires. In 2011 11th IEEE International Conference on Nanotechnology, NANO 2011 (pp. 297-300). [6144370] (Proceedings of the IEEE Conference on Nanotechnology). https://doi.org/10.1109/NANO.2011.6144370