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Center for Excitonics Seminar Series
Thursday, Dec 13, 2012
3:00 - 4:00 PM
RLE HAUS and ALLEN rooms: 36-428
Organic Semiconductor Chemistry
Seth Marder, School of Chemistry and Biochemistry and Center for Organic Photonics and
Electronics, Georgia Institute of Technology, Atlanta
Abstract:
Organic semiconductors have attracted interest for electronic applications due to their
potential for use in low-cost, large-area, flexible electronic devices. While many
examples of organic semiconductors for p-channel and n-channel organic field-effect
transistors (OFETs) and organic photovoltaic systems (OPVs) have been reported in the
recent literature, there is a paucity of high-performance, solution-processable,
small-molecule electron transport materials. Here, we report that bis(NDI) derivatives
with conjugated bridging groups based on fused heterocycle ring systems can be used to
create solution-processed films that exhibit OFET electron mobility values of up to 1.5
cm2V-1s-1, which is among the highest yet reported for an n-channel OFET based on a
solution-processed small molecule. In addition we will discuss the development of metal
complexes that can be used to both n-dope or p-dope organic semiconductors and the use of
surface modifiers to vary the work function of electrodes for use in optoelectronic
applications.
Bio
Seth Marder is currently the Georgia Power Chair of Energy Efficiency and Professor of
Chemistry and Materials Science and Engineering, (courtesy) at the Georgia Institute of
Technology. Dr. Marder obtained a Bachelors of Science in Chemistry from MIT in 1978 and
his Doctorate from the University of Wisconsin-Madison in 1985, where he was a W. R. Grace
Fellow. Dr. Marder then was a postdoctoral researcher at the University of Oxford from
1985-1987. After his stay at Oxford, he moved to the Jet Propulsion Laboratory (JPL)
California Institute of Technology (Caltech) where he was a National Research Council
Resident Research Associate from 1987-1989.
He later became a Member of the Technical Staff at the Jet Propulsion Laboratory, a Member
of the Beckman Institute at Caltech and Associate Director, for the Office of Naval
Research Center for Advanced Multi-Functional Nonlinear Optical Polymers and Molecular
Assemblies, until he moved to the University of Arizona in 1998. He is the Deputy Director
and co-principal investigator on the National Science Foundation Science and Technology
Center: Materials and Device for Information Technology Research. In 2003 he moved to the
School of Chemistry and Biochemistry at the GT where he was appointed the founding
director for the Center for Organic Photonics and Electronics and holds a courtesy
appointment in the School of Material Sciences and Engineering. He is the co-Director of
Georgia Tech's NSF-Materials Research Science and Engineering Center, (MRSEC),
Director of the AFOSR-Center for Organic Materials for All-Optical Switching, and an
Associate Director for a DOE, funded Energy Frontier Research Center.
His research interests are in the development of materials for nonlinear optics,
applications of organic dyes for photonic, display, electronic and medical applications,
and organometallic chemistry. Recently, his research group has been systematically
designing dyes for large two-photon absorption cross sections for a variety of
applications ranging from two-photon induced polymerization to dyes for two-photon
fluorescence microscopy.
Dr. Marder was the 1993 recipient of JPL's Lew Allen Award for outstanding research
by a scientist in the early part of his career, a recipient of an NSF Special Creativity
Award, and a Fellow of the American Association for the Advancement of Science (2003) and
the Optical Society of America (2004), SPIE (2006), the Royal Society of Chemistry (2007)
and the American Physical Society (2009). He also received the 2009 Georgia Institute of
Technology Outstanding Award for Research Program Development and a 2011 American Chemical
Society A.C. Cope Scholar Award.
He has co-authored over 350 peer reviewed research papers and holds over 20 patents, has
organized or served on organizing committees for over forty scientific conferences,
including chairing the Seventh International Conference on Organic Nonlinear Optics,
co-chairing the Ninth International Conference on Functional Pi-Systems, and the 2012
International Conference on the Science and Technology of Synthetic Metals. In addition
Dr. Marder has co-edited several proceedings including for the ACS, SPIE and MRS. He has
served on the Board of Reviewing Editors for Science Magazine, and as a member of the
Editorial Board for Chemistry of Materials, Nonlinear Optics and Quantum Optics, the
Journal of Materials Chemistry and the International Advisory Board for Chemical
Communications and Advanced Functional Materials. He has also been a guest editor for
several journals including an issue of Advanced Functional Materials and has recently
co-edited two Special Volumes of Advances in Polymer Science: Photoresponsive Polymers and
has served as the Chair of the editorial board for the RSC Journal of Materials
Chemistry.
Light refreshments will be served
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