Battery Science: at the Confluence of Electrochemistry and Materials Science — Dr. Esther Takeuchi (3/4/15)
Wednesday, March 4, 2015 @ 1:30 PM
Advances in electrochemical energy storage are critical and may be a key factor in the ability to fully utilize renewable energy sources such as wind, hydroelectric, and geothermal power. Additionally, transportation, aerospace, personal electronics and biomedical applications have ever increasing demands for portable power. Despite remarkable advances in the optimization of electrochemically active materials over the last several decades, there remains an urgent need ...
Dr. Esther S. Takeuchi is a SUNY Distinguished Professor in the Departments of Materials Science and Engineering and Chemistry at Stony Brook University. She also has a joint appointment at Brookhaven National Laboratory. Prior to her academic appointment, she was employed in industry conducting research on batteries for unique environments including implantable applications, including the lithium/silver vanadium oxide (Li/SVO) battery, which powers the majority of im...
Chemical Doping in Organic Semiconductors: Challenges and Opportunities — Dr. Antoine Kahn (3/11/15)
Wednesday, March 11, 2015 @ 3:00 PM
In this talk, we review recent applications of chemical doping in organic molecular and polymer semiconductors. We begin with a motivation for doping these materials in device applications, and with a review of doping mechanisms in molecular solids. We then provide an overview of the reducing or oxidizing power of a number of n- and p-type molecular dopants, respectively, and their effect on the electronic structure and conductivity of both vacuum- and solution-processed...
Antoine Kahn, native of France, received his PhD in Electrical Engineering and Computer Science from Princeton University in 1978. He joined the Princeton faculty in 1979, and was promoted to Associate Professor in 1985 and Full Professor in 1991. He has done extensive work on atomic and electronic structures of surfaces and interfaces of semiconductors. Over the past fifteen years, he focused on the structural, electronic and chemical properties of surfaces and interfac...
Piezoelectric Nanomaterials Growth and Their Applications — Dr. Rusen Yang (3/18/15)
Wednesday, March 18, 2015 @ 3:00 PM
Development of nanotechnology and low-power electronics is leading to the transformative self-powered nanosystems that exhibit ultra-small size, supersensitivity, extraordinary multi-functionality and extremely low power consumption. One of the grand challenges for the next generation nanosystem is the controlled growth of functional nanomaterials and the development of the nanoscale energy harvester to power the system. Zinc oxide (ZnO) is a piezoelectric and semiconduc...
Dr. Rusen Yang obtained his M.S. and B.S. in Condensed Matter Physics from Jilin University, China. In 2007, he received his PhD degree in Materials Science and Engineering from Georgia Institute of Technology, where he continued as Post Doctoral Associate. He currently joined the Department of Mechanical Engineering at UMN as an assistant professor. He has done extensive research in the field of nanoscience and nanotechnology, with special interest in ZnO. His most rece...