Graphene Quantum Dots and Silver Nanoparticles Based High Sensitivity SERS Molecular Sensors

Yonhua Tzeng, Jiunchi Lai

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

Abstract

Thermal CVD graphene quantum dots and silver nanoparticles on substrates exhibit excellent enhancement factors in Raman scattering signals excited by a green solid state laser and detected by an optical spectrometer from R6G and adenine molecules of concentration lower than 10 -12 M demonstrating an enhancement factor on the order of 10 14 times for selected molecules. The applications of such devices as high-sensitivity SERS molecular sensors are presented. Roles of graphene quantum dots, silver nanoparticles and the substrates on their excellent performance are presented and discussed.

Original languageEnglish
Title of host publication18th International Conference on Nanotechnology, NANO 2018
PublisherIEEE Computer Society
ISBN (Electronic)9781538653364
DOIs
Publication statusPublished - 2019 Jan 24
Event18th International Conference on Nanotechnology, NANO 2018 - Cork, Ireland
Duration: 2018 Jul 232018 Jul 26

Publication series

NameProceedings of the IEEE Conference on Nanotechnology
Volume2018-July
ISSN (Print)1944-9399
ISSN (Electronic)1944-9380

Conference

Conference18th International Conference on Nanotechnology, NANO 2018
CountryIreland
CityCork
Period18-07-2318-07-26

All Science Journal Classification (ASJC) codes

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

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    Tzeng, Y., & Lai, J. (2019). Graphene Quantum Dots and Silver Nanoparticles Based High Sensitivity SERS Molecular Sensors. In 18th International Conference on Nanotechnology, NANO 2018 [8626397] (Proceedings of the IEEE Conference on Nanotechnology; Vol. 2018-July). IEEE Computer Society. https://doi.org/10.1109/NANO.2018.8626397