The Department of Chemistry invites you to its departmental seminar today at 4:10 p.m. in Fulmer Hall, room 201.
Dr. Hong-fei Wang, Chief Scientist from the Environmental Molecular Sciences Laboratory at PNNL, will present, Complex Molecular Surface/Interface Sciences and Applications with Novel Surface Nonlinear Vibrational Spectroscopy.
Abstract: In the past three decades or so, there have been many applications of surface nonlinear vibrational spectroscopy, i.e. sum-frequency generation vibrational spectroscopy (SFG-VS), for its interface selectivity and sub-monolayer sensitivity, in obtaining chemical structure and bonding, as well as dynamic interactions, of molecular surfaces/interfaces, in energy, environmental, materials, nanotechnology, and biological sciences. The potentials of SFG-VS in studies of complex molecular systems at surfaces/interfaces can be greatly expanded with the recent development of the high-resolution broadband sum-frequency generation vibrational spectroscopy (HR-BB-SFG-VS) at the Environmental Molecular Sciences Laboratory (EMSL) of Pacific Northwest National Laboratory (EMSL). HR-BB-SFG-VS is realized by combining the infrared and visible pulses at both the time and the frequency resolution limit, as it allows measurement of the nearly intrinsic lineshape of the SFG vibrational spectra. This development has shown to be a game changer in the field of surface and interfacial vibrational spectroscopy. In this talk, the new opportunities and applications of such a unique quantitative spectroscopic tool for complex molecular surfaces/interfaces in energy, environmental and biological sciences and technologies are to be discussed.
