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Luis Velarde, assistant professor of chemistry at the University at Buffalo, will present "Unraveling Molecular Structure at Nanoscale Interface with Nonlinear Laser Spectroscopy" at 12:30 p.m. Thursday, April 9, in Science Building 272. An abstract of his talk appears below.

This Chemistry-Physics Seminar Series is supported by the Faculty-Student Association at Buffalo State.

Abstract
An in-depth control of interfacial processes is essential in order to make a significant impact in the efficiency and long-term integrity of electrochemical systems and sensors. Molecular-level characterization of electrochemical surface structure and dynamics, particularly under typical device operating conditions, is an essential but difficult aspect of designing novel chemical sensors and photoelectrochemical systems for energy conversion and storage. In this talk, key fundamental spectroscopic concepts will be presented that could be effectively applied in the design and construction of tailored semiconductor interfaces with by-design properties. An improved approach for performing nondestructive in-situ spectroscopic measurements for the detection of molecular-level interfacial phenomena in conductive and semiconductive oxides as well as nanostructured carbon films will be discussed, including applications in sensing and energy conversion and storage. This approach uses and develops coherent nonlinear optical methods with interface selectivity.