"Electronic Coupling of Molecules to Silicon for Enhanced Energy Conversion" Associate Professor Michael J. Rose - Department of Chemistry, University of Texas at Austin Host: Daniel Gamelin The challenge of converting sunlight to chemical energy is a major focus of the renewable energy research landscape. Silicon is the most widespread, most economically viable, and most well-studied material for solar energy conversion. Thus, the coupling of catalysts and molecules to silicon surfaces represents a critical junction through which to channel electrons for chemical energy. Additionally, photoelectrochemistry for electron transfer and catalysis requires molecular-level interface design to install interfacial dipoles, efficient electron transfer and high photovoltages. However, the fundamental rules for how to impart and describe electronic coupling between semiconductor and molecule is not rigorously described. In this seminar, the functional effects and design principles behind interfacial electronic coupling will be described. The theoretical interplay between molecular orbitals (molecule) and valence & conduction bands (semiconductor) must become hybridized and described by modified group theoretical methods. The Department of Chemistry is committed to providing access and accommodation. To make a request connected to a disability or health condition for this event, contact Cassie Davis at 206-543-1656 (voice) or chem59x@uw.edu. |