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The Molecular Chemistry of Extended Solids
Presented by Prof. Hemamala Karunadasa
Hosted by Prof. Roy
Abstract:
My group is invested in bringing the synthetic design rules common to molecular chemistry to extended ionic solids by understanding the physical and electronic effects of changes to composition, connectivity, and dimensionality. We seek to improve technologically important materials as well as to design fundamentally new materials with unprecedented properties. I will share our current understanding of members of the halide perovskite family, whose technologically relevant properties are highly amenable to synthetic design. I will also introduce new architectures that allow us to increase the complexity of the metal and ligand composition and the accessible electronic structures. We recently reported a synthetic strategy for the self-assembly of layered perovskite–non-perovskite heterostructures into single crystals in solution, using organic groups as structure-directing agents. I will present various layered heterostructures that form as an interleaving of perovskite slabs with a different inorganic lattice and describe the electronic and optical phenomena that occur at the interfaces.
