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NBC Seminar Infrared Semiconductor Nanocrystals: Novel Meterials for Solar Energy Capture Speaker: Doh Chang Lee, Ph.D Department of Chemical and Biomolecular Engineering KAIST Semiconductor nanocrystal quantum dots represent an important class of chemically processible nanomaterials. Their use in photovoltaic devices is particularly promising, as their moderate synthesis temperature and solution-processibility offer opportunities to address constraints on alternative technologies such as scalability. Additionally, by tuning the size, shape, and composition of colloidal nanocrystals, we can exploit quantum confinement effects, e.g., the size-tunable energy gap and discrete energy states. In this talk, I will discuss new developments that enable (i) spatial separation of electrons and holes in infrared-bandgap semiconductor nanocrystals and (ii) examination of quantum confinement effects in indirect bandgap semiconductors, specifically germanium (Ge). When: 4:15 PM on Nov. 17 (Thu.) Where: Engineering Building 1, E104 Contact: Prof. Sang Hoon Joo (2522) / [email protected] School of Nano-Bioscience & Chemical Engineering UNIST
