In addition to its annual lectures, ChBE hosts a weekly seminar throughout the year with invited lecturers who are prominent in their fields. Unless otherwise noted, all seminars are held on Wednesdays in the Molecular Science and Engineering Building ("M" Building) in G011 (Cherry Logan Emerson Lecture Theater) at 4 p.m. Refreshments are served at 3:30 p.m. in the Emerson-Lewis Reception Salon.

NOTE: This seminar is being held in Room W200 of the Van Leer Building.

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"Controlling Crystal Growth for Organic Electronics and Pharmaceutical Applications"

Gaurav Giri, Postdoctoral Fellow, Department of Chemical Engineering, Massachusetts Institute of Technology

Abstract:
Understanding and controlling crystal formation of inorganic and organic molecules are essential for many emerging applications and technologies, such as organic electronics and pharmaceuticals. This seminar first describes the use of controlled metastable polymorphism in organic semiconductor (OSC) crystals through solution deposition processes. The origin of metastable polymorphism is studied using high speed, in-situ optical imaging and X-ray diffraction. I then describe how concepts of crystal polymorphism and growth can be applied for industrial applications. I show that selective deposition of OSCs can be utilized to create high performance polymorphs and functional organic circuits. Then, I explain how controlling the crystal growth profile of products or byproducts can improve continuous manufacturing of fine chemicals and pharmaceuticals using microfluidic platforms.