Oct
4
Thu 3:00 PM

ANSER Center Seminar

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When: Thursday, October 4, 2012
3:00 PM - 4:00 PM  
Where: Ryan Hall, Room 4003
2190 Campus Drive  
Evanston, IL 60208 map it
Audience: - Faculty/Staff - Student
Contact: Ria Hirsch   (847) 467-2519
Group: Argonne-Northwestern Solar Energy Research Center
Category: Academic

Dr. Geoffrey Hutchinson of the University of Pittsburgh will visit Northwestern to deliver an ANSER seminar entitled “Rational Design of Molecular Materials: Molecular Springs, Solar Cells & More.”

Abstract:

Present social and economic demands on energy sources are driving fundamental science and engineering research into alternative energy technologies. Our research focuses on combined experimental and efficient computational exploration of organic photovoltaics and piezoelectrics. We seek to find optimum or nearly‐optimum materials properties through a combination of inverse design, genetic algorithms, and automated electronic structure calculations, combined with experimental synthesis and verification. With polymer solar cells, we have used a multi‐objective genetic algorithm to uncover new design rules for highly‐efficient targets. We also explore the charge transport in realistic,
imperfect organic semiconductors to find design rules connecting nanoscale morphology with predicted current‐voltage response. In piezoelectric materials, we have pioneered a new approach,
using conformational distortions of individual molecules in an applied electric field to drive a “bottomup” distortion, with greater piezoresponse than many conventional inorganics.

 

Please contact Ria Hirsch, r-hirsch@northwestern.edu with all questions.