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conferenceseries .com
Volume 4, Issue 4 (Suppl) J Laser Opt Photonics, an open access journal
ISSN: 2469-410X Optics 2017
November 15-17, 2017
November 15-17, 2017 | Las Vegas, USA
8th International Conference and Exhibition on
Lasers, Optics & Photonics
A perspective on quasi-confocal operando Raman microspectroscopy of laminated polymer composite
materials
Eugene S Smotkin
Northeastern University, USA
Steady state operando confocal Raman microspectroscopy of polymer electrolyte membrane fuel cell catalytic layers is challenged by
thermal damage to the catalytic layer resulting from excessive luminescence within a focal point sampling region. Experimentalists
must exclude catalyst material along the optical axis path or position the axis between (parallel) the catalytic layers. We demonstrated
that operando non-confocal Raman microspectroscopy of a catalytic layer yields high quality spectra elucidating changes in the
membrane ion exchange site local symmetry as the fuel cell transitions from open circuit to oxygen reduction potentials. We now
explain how non-confocal microscopy enables steady state layer-by-layer spectroscopic profiling with no thermal damage to “black”
layers?
Biography
Eugene S Smotkin has completed his PhD from University of Texas at Austin. He is the Professor of Chemistry Northeastern University and CEO of NuVant Systems Inc.,
a premier electrochemical technology organization. He has published more than 80 papers in reputed journals and has 15 patents.
Eugene S Smotkin, J Laser Opt Photonics 2017, 4:4 (Suppl)
DOI: 10.4172/2469-410X-C1-017