Massachusetts Institute of Technology
ARCO Career Development Professor
Faculty Host: Xi Ling
Student Host: Tianshu Li
Refreshments at 2:45 PM
Title: Structure and Photophysics in Hybrid Semiconductor Nanomaterials
Hybrid organic-inorganic semiconductors, including quantum dots and halide perovskites, are an exciting class of solution-processable materials that may be used in next-generation optoelectronic applications. When fabricated in a nanostructured form – either as layered 2D quantum wells or colloidal nanocrystals – these hybrid materials exhibit interesting behavior, revealing both quantum mechanical and classical composite effects. In the first part of this talk, I will demonstrate the central importance of surface molecular ligands in controlling and directing the self-assembly of colloidal nanocrystal superlattices using a combination of X-ray and neutron scattering probes. In the second part of this talk, I will discuss the thermal, electronic, and excitonic properties of lead halide perovskite nanomaterials – and what these photophysical studies tell us about the interactions between organic and inorganic subphases of this interesting class of materia
Will Tisdale joined the Department of Chemical Engineering at MIT in January, 2012, where he holds the rank of Associate Professor and is currently the ARCO Career Development Professor in Energy Studies. He earned his B.S. in Chemical Engineering from the University of Delaware in 2005, his Ph.D. in Chemical Engineering from the University of Minnesota in 2010, and was a postdoc in the Research Laboratory of Electronics at MIT before joining the faculty in 2012. Will is a recipient of the Presidential Early Career Award for Scientists and Engineers (PECASE), the DOE Early Career Award, the NSF CAREER Award, an Alfred P. Sloan Fellowship, the Camille Dreyfus Teacher-Scholar Award, the AIChE Nanoscale Science & Engineering Forum Young Investigator Award, and MIT’s Everett Moore Baker Award for Excellence in Undergraduate Teaching.