Supervisor: Prof Ullrich Steiner
Dipl.-Phys. in Physics from the University of Hamburg, Germany
Structure and Function of Polymers far from Equilibrium
While the equilibrium thermodynamics of polymers is reasonably well understood, it has recently emerged that macromolecules in confinement are often far from equilibrium. Polymer-based photovoltaic devices, for example, are processed under conditions where full equilibration of the phase morphology and molecular conformations are unlikely.
My research focuses on fundamental study of quenched polymers. I will investigate the correlation of phase separation and crystallisation in quenched binary photocoltaic blends to better understand the structure-function interplay in bulk-heterojunction photovoltaic devices with the long-term goal to improve the electronic performance of organic photovoltaic cells.
Structure formation in P3HT/F8TBT blends
A. Sepe, Z. Rong, M. Sommer, Y. Vaynzof, Xiaoyuan Sheng, P. Müller-Buschbaum, D.-M. Smilgies, Z.-K. Tan, L. Yang, R.H. Friend, U. Steiner, S. Hüttner
Energy and Environmental Science 7, 1725-1736 (2014)