“Thermal and Optical Properties of Highly Ordered Mesoporous Thin Films”
Laurent Pilon, UCLA
Mesoporous materials are an interesting class of materials whose dielectric, optical and thermal properties can be tuned by controlling their nanostructure. They have been used or considered for various applications ranging from energy to microelectronics. This seminar presents the synthesis and characterization of mesoporous silica or titania thin films with highly ordered cylindrical or spherical pores. Experimental measurements of their effective thermal and optical properties will be presented for different pore shape, size, morphology, porosity, crystallinity and film thickness. Finally, first principle numerical simulations of the optical behavior of mesoporous materials will be presented. Numerical results will be compared with experimental measurements as well as with well known effective medium approximations.
Laurent Pilon received his B.S. and M.S. in applied physics from the Grenoble Institute of Technology in France, followed by a Ph.D. in mechanical engineering from Purdue University in 2002. He then joined the Mechanical and Aerospace Engineering Department at UCLA where he is now an associate professor. He is the recipient of a 2005 National Science Foundation CAREER Award, the 2005 Northrop Grumman Excellence in Teaching Award from the UCLA School of Engineering and Applied Science, the 2008 Bergles-Rohsenow Young Investigator Award in Heat Transfer from the American Society of Mechanical Engineers and the 2009 JQSRT Young Scientist Award in Radiative Transfer.