Proceedings of nanoGe Fall Meeting19 (NFM19)
DOI: https://doi.org/10.29363/nanoge.nfm.2019.230
Publication date: 18th July 2019
Although known for more than a century, hybrid (organic-inorganic) halide-based perovskites have received extraordinary attention recently, because of the unique physical properties and chemical diversity of the three-dimensional (3-D) and related lower-dimensional (2-D, 1-D and 0-D) lead-, tin- and germanium-based systems, which make them outstanding candidates for application in photovoltaic and related optoelectronic devices. This talk will emphasize the structural versatility of the hybrid perovskite family [1] and resulting implications for semiconductor design, as well as film/device formation. Examples include the use of specifically-designed organic cations to stabilize the formation of difficult-to-realize lead-free perovskite semiconductors [2], the incorporation of functional organic cations that directly impact charge carrier dynamics and photophysics [3], and the role that the organic cation plays in tailoring melting properties of hybrid perovskites [4] and how this may connect to developing a solvent-free film formation pathway and associated laminated device framework [5]. Outstanding functionality combined with facile processing, enabled by the chemical devirsity of the hybrid perovskites (in particular, the organic component of the structure), provide two pillars for generating unique physical properties and future application of this family of hybrid semiconductors.
The material discussed in this talk is primarily based upon work financially supported by the Office of Naval Research (ONR) through award number N00014-17-1-2207, the National Science Foundation (NSF) through award numbers DMR-1729297, DMR-1728921 and DMR-1729383, as well as the U. S. Department of Energy (DOE), as part of the Center for Hybrid Organic Inorganic Semiconductors for Energy (CHOISE), an Energy Frontier Research Center funded by the DOE, Office of Science, Basic Energy Sciences (BES).
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