The Condensed Matter & Surface Sciences Colloquium Series presents Joe Reczek of Denison University on “Design and Emergent Properties of Modular Aromatic Charge-Transfer Liquid Crystals,” on Thursday, November 03, at 4:10 p.m. in Walter 245.
Joe Reczek
Abstact: The well-designed combination of electron rich and electron poor aromatic molecules can lead to the self-assembly of alternating face centered columnar materials. These bi-component mixtures often form well-ordered thermotropic liquid crystals, termed donor-acceptor columnar liquid crystals (DACLCs). DACLCs are highly modular materials that have fascinating physical and optical properties distinct from those of the component molecules. Some of these properties can be predicted and/or independently tuned through the simple mixing and matching of components. This includes the temperature range and structure of mesophases, charge-transfer absorption in the UV/Vis/NIR regions, dichroic behavior, and charge mobilities. The ability to independently design and tune optoelectronic and physical properties in DACLC materials will be discussed, as well as a brief look at some emerging functional properties of these modular organic materials.
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