The present invention, in one aspect, relates to a solar cell. In one embodiment, the solar cell includes an anode; an active organic layer comprising an electron-donating organic material and an electron-accepting organic material; and an interfacial layer formed between the anode and active organic...http://www.google.co.uk/patents/US7888593?utm_source=gb-gplus-sharePatent US7888593 - TFB:TPDSi2 interfacial layer usable in organic photovoltaic cells
