MIOMD-XI Speakers    
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1.  Mr. Sean Keuleyan, University of Chicago, USA
Late-Breaking Results: Mid-IR HgTe Colloidal Quantum Dots
Speaker Biography: Sean is a fourth year graduate student in the Chemistry department at the University of Chicago. His work focuses on the development of colloidal materials for applications in the mid-infrared. He graduated with a B.S. in Chemistry with a second major in Film and Media Arts from Temple University in 2008.

Summary: The past two decades have seen incredible interest and development of colloidal quantum dots (CQDs) in the visible and near-IR for light sources, detection. photovoltaics, and labeling. Colloidal nanocrystals though, may have a great unrealized potential in the mid-infrared, where solution preparation and processing enable low-cost devices, and an attractive alternative to photodetectors in the 3-5 μm range of wavelengths for some applications. Mid-infrared-active nanocrystals though are quite underdeveloped, due in part to poorly-controlled chemistry of the particle growth. By improving the chemical preparation of HgTe colloidal quantum dots, we have enabled the first studies of these materials into the mid-IR and their potential in mid-infrared detection and emission.
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