Hybrid nanomaterials and their structure-property-performance relations for catalysis, green energy and nanoelectronics applications

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In the past five years, we have achieved a number of important studies on the interfacial chemistry of (a) bio/organic molecules on Si single-crystal surfaces, and (b) nanostructures of transition metals (and their oxides) and transparent conductive oxides on Si and other (templated) substrates. As material and structural imperfections have become an often unavoidable yet extremely important part of the entire material, we will focus, in the next five years, on defects-driven phenomena in these hybrid nanomaterials. While the presence of defects is often viewed as detrimental to some material properties, control of these defects can also be highly beneficial to a number of important material properties, especially when the material size approaches the nanoscale. This has been demonstrated by our recent discovery of extraordinary photocatalytic power in defect-rich TiO