Personal Page – Professor

B.Sc. in Physics from Pontifícia Universidade Católica do Rio de Janeiro (1991), M.A. in Science from University of California at Berkeley (1994) and Ph.D. in Physics from University of California at Berkeley (1998), working with nonlinear vibrational spectroscopy of interfaces. Held a post-doc position at the University of California at Santa Barbara (1999-2001), where he used ultrafast pump-probe spectrocopy to investigate charge carrier photogeneration in semiconducting polymers. Was appointed Assistant Professor of Physics at Sao Paulo State University (Unesp) at Bauru (2001). In 2003 took the position of Assistant Professor at the Sao Carlos Physics Institute (IFSC) of the University of Sao Paulo (USP), Brazil, and became Associate Professor in 2015. Since 2022 is the coordinator of the Physics Bachelor undergraduate course of IFSC. Has experience in physical chemistry of interfaces, focusing on using sum-frequency vibrational spectroscopy to investigate the molecular arrangement at interfaces (adsorption of water and oil on minerals, polyelectrolyte thin films, electrochemistry, Langmuir and Langmuir-Blodgett films and self-assembled monolayers). Another research topic includes (opto)electronic devices based on semiconducting polymers, such as solar cells and field-effect transistors. Transient electrical measurements and time-resolved spectroscopy are used to investigate charge extraction and recombination in solar cells, nonlinear microscopy is utilized in mapping the electric field along the transistor channel, and interface effects are investigated in these organic devices.