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Proceedings Paper

Optical properties of porphyrin: graphene oxide composites
Author(s): M. Harsha Vardhan Reddy; Rusul M. Al-Shammari; Nebras Al-Attar; Sergio Lopez; Tia E. Keyes; James H. Rice
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Paper Abstract

In this work we aim to (via a non-invasive functionalization approach) tune and alter the intrinsic features of optically “transparent” graphene, by integrating water-soluble porphyrin aggregates. We explore the potential to combine porphyrin aggregates and graphene oxide to assess the advantages of such as a composite compared to the individual systems. We apply a range of optical spectroscopy methods including photo-absorption, fluorescence assess ground-state and excited state interactions. Our studies show that comparing resonant Raman scattering with optical transmission and fluorescence microscopy that the presence of influences the microscopic structures of the resulting composites.

Paper Details

Date Published: 27 August 2014
PDF: 8 pages
Proc. SPIE 9172, Nanostructured Thin Films VII, 91720P (27 August 2014); doi: 10.1117/12.2061951
Show Author Affiliations
M. Harsha Vardhan Reddy, Univ. College Dublin (Ireland)
Rusul M. Al-Shammari, Univ. College Dublin (Ireland)
Nebras Al-Attar, Univ. College Dublin (Ireland)
Sergio Lopez, Dublin City Univ. (Ireland)
Tia E. Keyes, Dublin City Univ. (Ireland)
James H. Rice, Univ. College Dublin (Ireland)

Published in SPIE Proceedings Vol. 9172:
Nanostructured Thin Films VII
Akhlesh Lakhtakia; Tom G. Mackay; Motofumi Suzuki, Editor(s)

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