Enhanced Hole Mobility in Regioregular Polythiophene Infiltrated in Straight Nanopores


  • Kevin M. Coakley and Bhavani S. Srinivasan contributed equally to this work. The authors acknowledge the Global Climate and Energy Project at Stanford, the Henry and Camille Dreyfus Foundation, Nanosolar, and the National Science Foundation for funding this research. The authors also thank Nanosolar for providing the procedure to make anodic alumina films and Guleid Hussen (Stanford MSE) and Vignesh G. Shankar (Stanford MSE) for supplying aluminum-coated SnO2:F substrates.


We demonstrate that the hole mobility in regioregular poly(3-hexylthiophene) can be enhanced by a factor of 20 by infiltrating it into straight nanopores of anodic alumina. Optical characterization shows that the polymer chains are partially aligned in the charge-transport direction.