Self-assembled domains in a semiconducting matrix

1. Controlling the Structure of Organic Electronics at the NanoscaleRachel A. Segalman, University of California-Berkeley, DMR 0546560 Plastic electronics have the potential to be manufactured cheaply using well-controlled solution-processing techniques. However, performance of these devices depends on the structure of the material at the nanometer length scale. In recent publications,1-3 we show that poly(3-alkylthiophenes) with a branched side chain have lower a melting transition, resulting in improved crystalline texture and block copolymers which self-assemble into patterned domains. This unprecedented control of structure will lead to improved performance in future devices. [1] Ho, V et al.Macromolecules, 2010, 43, 7895-7899. [2] Boudouris, B.W. et al.Macromolecules, in press. [3] Ho, V. et al.J. Am. Chem. Soc. 2011, 133 (24), 9270–9273. P3EHT shows lower melting transition temperature P3EHT shows better crystal texture than P3HT Self-assembled domains in a semiconducting matrix

2. Controlling the Structure of Organic Electronics at the NanoscaleRachel A. Segalman, University of California-Berkeley, DMR 0546560 Developing Polymer Science Modules at Rio Mesa High School Over the last several years, we’ve worked with Rio Mesa High School (A Title 1 school in Oxnard, Ca) to develop a short module which is meant to inspire freshman in polymer science. Hands-on demonstrations with polymers including the synthesis of silly putty fostered understanding and encouraged students to investigate the properties of these ubiquitous materials. Introducing Low-Income Youth to Nanotechnology Additionally, in conjunction with Juma Ventures, this year we invited high school students from low-income families who are motivated to earn a college degree for a tour of our lab. Students were introduced to concepts and challenges for the potential application of polymer to energy concerns in the 21st century. Funded Researchers Victor Ho– current graduate student associated with this project. Bradley D. Olsen – PhD 2008, currently faculty at MIT Yufei Tao – PhD 2009, currently research scientist at Dupont