Get access

Charge Separation at Self-Assembled Nanostructured Bulk Interface in Block Copolymers


  • We thank C. Kunert for the TEM images and H. Hänsel and S. Haque, Imperial College, London, for fruitful discussions. This work was supported by the German Research Council (DFG/SFB 481-Project B4). A.C. acknowledges financial support from the European Union's “Marie-Curie Actions” of the “Polyfilm” Research Training Network.


original image

Proper percolation of charges in solar cells is possible with the self-assembled nanostructure of a block-copolymer film (see the TEM cross section of a solar cell). A photovoltaic device made from such a block copolymer exhibits a ten-times higher short circuit current and a considerably larger photovoltage than its polymer-blend analogue.