Surface Enhanced Raman Spectroscopy(SERS) of TMPyP on Ag Nanoparticles.

N. Jmail, Nasrin; M.J. AbdulAziz, Qassim; Rice, J.H

doi:10.37652/juaps.2015.124466

Document Type : Research Paper

Authors

¹ University of Anbar - College of science

² UCD - College of science- School of physics- Ireland

10.37652/juaps.2015.124466

Abstract

This work was aimed to study the role of interaction between silver nanoparticles, TMPyP and Graphen Oxide(GO) on surface enhanced Raman scattering (SERS) signals. Silver nanoparticles(AgNPs) prepared by chemical reduction of AgNO3. SERS substrates show remarkable difference in spectral features due to the different enhancement contributions from the local chemical groups. Closely spaced NPs result in the enhancement of electromagnetic coupling between NPs leading to strong confinement of local electric field leading to large SERS enhancement. Graphene Oxide/TMPyP interaction nanostructures forming a composite with strong interaction, this came with identical results obtained in NanoPhotonics Research Group in UCD1. Depending on the quantum mechanics, this indicates match the energy levels between the reactants and increase the free electrons in the outer shells which enhances the surface plasmons signal.

Keywords

Main Subjects

Chemistry

References

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Journal of University of Anbar for Pure Science

Surface Enhanced Raman Spectroscopy(SERS) of TMPyP on Ag Nanoparticles.

References

References

Volume 9, Issue 2
August 2015
Page 48-55

Surface Enhanced Raman Spectroscopy(SERS) of TMPyP on Ag Nanoparticles.

References

References

Volume 9, Issue 2August 2015Page 48-55

Volume 9, Issue 2
August 2015
Page 48-55