Nanoparticles/Material Chemistry. Metal and semiconductor nanostructures, & Carbon Nanotubes - Synthesis, characterization, and surface functionalization; Optical properties, Photoelectrochemistry; and Sensor applications.

Energy Conversion. Design of inorganic-organic nanoassemblies for light energy conversion, Organic photovoltaics

Fuel cell and Hydrogen production.   Composite assemblies of carbon nanostructures (carbon nanotubes, fullerenes etc), metal nanoparticles (Pt, Au, Ag etc)  and semiconductor nanostructures (TiO2, ZnO, CdS etc) are being designed to improve the performance of  fuel cells and photocatlytic production of Hydrogen

Environmental Science. Advanced oxidation processes for treating organic wastes from water - use of metal oxide semiconductors such as TiO2, SnO2 and ZnO to sense and degrade haloaromatics and azo dyes.  Simultaneous sensing and destruction of low level toxic organics.

Chemical Processes in Heterogeneous Media. Surface photochemical processes, molecular clusters, ultrafast photophysical and photochemical events in oxides and polymers, mechanism and kinetics of photoeffects at semiconductor/electrolyte interface