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Welcome!

Our research is in the area of materials chemistry and physics of complex, soft materials. Specifically, we are interested in electrically-active polymeric and molecular materials.  We hope to elucidate the fundamental processing-structure-property relationships that govern these materials to generate design rules and guidelines for the rational synthesis of materials with tailored properties and the development of innovative processing and patterning technologies for the realization of low-cost, light weight, mechanically flexible thin-film devices, such as organic transistors and solar cells.

Currently, we are examining how specific processing conditions affect the structure evolution of organic and polymer materials, and how structure development can in turn impact applications-relevant macroscopic electrical and physical properties. Work is being carried out on functional block copolymers, solution-processable organic and polymeric conductors and semiconductors, as well as conjugated self-assembled monolayers.

News

10/01/2009 Lynn is named as the recipient of the 2010 John H. Dillon Medal of the American Physical Society.
09/16/2009 Stephanie's paper on controlling the grain size of TES ADT has been selected as the back cover of this months Advanced Materials issue! Congrats Steph!
06/01/2009 Kate and Joline are selected for the Ticona Award for Outstanding Senior Thesis and Sigma Xi Book Prize, respectively! Congrats Kate and Joline!
05/14/2009 Chang Su's paper on transient photovoltaic behavior in inverted organic solar cells identified in APL's Top 20 Most Downloaded Articles for the month of March!
05/07/2009 Joline is selected as one of seven finalists at the Undergraduate Research Symposium -- great work Joline!
04/27/2009 Joung Eun defends her thesis -- congratulations, Dr. Yoo!
04/10/2009 Nathalie receives the National Science Foundation Graduate Research Fellowship! Congrats Nathalie!
03/30/2009 Stephanie and Nathalie receive National Defense Science and Engineering Graduate Fellowships! Way to go Steph and Nathalie!
03/29/2009 Stephanie's paper on controlling nucleation and crystallization in solution processed organic semiconductors is accepted for publication! Well done Steph!
03/13/2009 Joung Eun's paper on polymer conductivity through particle connectivity is accepted for publication! Congrats, Joung Eun!
03/04/2009 Kate is selected to receive the Rudlin Senior Thesis fund! Congrats, Kate!
02/24/2009 Chang Su's papers on the thermodynamics of phase separation and transient photovoltaic behavior in inverted organic solar cells are accepted for publication -- well done, Chang Su!
02/05/2009 He Wang passes her generals and joins the group -- congrats and welcome He!
01/20/2009 Keith passes his first prop -- congrats, Keith!
01/14/2009 Stephanie passes her first prop -- congrats, Steph!
01/08/2009 Nathalie Pinkerton joins the group -- welcome!

Research Spotlight

Controlling Nucleation and Crystallization in Solution-Processed Organic Semiconductors for Thin-Film Transistors

Incorporating small amounts of FTES-ADT in solution-processed thin films of TES-ADT enables fine-tuned control of grain size across 3 orders of magnitude. Using  this process, we were able to correlate OTFT device mobility to grain size in the active layer.  Effective regulation of seeding also eliminates variations in the performance of OTFT active layers, thereby enhancing reliability and reproducibility. Learn More.