Anna B. Shin
Laboratory Administrator | Aspuru-Guzik Research Group
Department of Chemistry and Chemical Biology | Harvard University
12 Oxford Street | Cambridge, MA 02138
617.496.9964 office | 617.694.9879 cell | 617.496.9411 fax
http://aspuru.chem.harvard.edu/
---------- Forwarded message ----------
From: Cathy Bourgeois <cmbourg(a)mit.edu>
Date: Tue, Jan 25, 2011 at 11:39 AM
Subject: ANNOUNCEMENT: Excitonics Seminar, TUES, Feb. 1
To: efrc-all(a)mit.edu
*Please forward to your groups *
*____________________________________________________________________*
* *
*Center for Excitonics* *
Seminar Series Announcement*
Tuesday, February 1, 2011
3:00 PM
RLE Conference Room: 36-428
*Mihaela C. Stefan, *University of Texas at Dallas**
*“**Benzodithiophene Based Semiconducting Polymers for Organic
Photovoltaics”*
* *
*Abstract ** *Semiconducting polymers containing benzodithiophene with
alkyl phenylethynyl substituents have been synthesized by Stille coupling.
The fused central ring allows the incorporation of substituents on the
central benzene core, while maintaining planarity of the two thiophene
units. In addition, the symmetric nature of the benzodithiophene core
eliminates the need to control the regioregularity during the polymerization
process. Polymers containing pentyl, decyl and hexadecyl solubilizing
alkyl substituents have been synthesized and their opto-electronic
properties have been investigated. The synthesized polymers were used as
donors in bulk heterojunction solar cell devices.
*Bio ** *Mihaela C. Stefan is Assistant Professor in the
Department of Chemistry at University of Texas at Dallas. She is also
holding an affiliate position in the Department of Materials Science and
Engineering at University of Texas at Dallas. She received her BS in
Chemical Engineering, and her MS and Ph.D. degrees in Chemistry from
Politehnica University Bucharest, Romania. She worked as a Postdoctoral
Researcher in Matyjaszewski’s group at Carnegie Mellon University from 2002
to 2003. In July, 2003, she joined McCullough’s group at Carnegie Mellon
University to work on the synthesis of block copolymers containing
polythiophenes. Mihaela joined the Department of Chemistry at the
University of Texas at Dallas in August 2007. In 2009 she received the NS&M
Outstanding Teacher Award which is given annually at UT Dallas based on
nominations from students. She received the Faculty Early Career Development
(CAREER) award from NSF in 2010. Her research group is developing novel
polymeric materials for organic electronics and for drug delivery systems.
Light refreshments will be served
*The Center for Excitonics is an Energy Frontier Research Center funded by
the U.S. Department of Energy, Office of Science and Office of Basic *