Transparent and conductive electrodes based on unpatterned, thin metal films

O'Connor, Brendan; Haughn, Chelsea; An, Kwang-Hyup; Pipe, Kevin P.; Shtein, Max
December 2008
Applied Physics Letters;12/1/2008, Vol. 93 Issue 22, p223304
Academic Journal
Transparent electrodes composed of ultrathin, unpatterned metal films are investigated in planar heterojunction (PHJ) and bulk heterojunction organic photovoltaic (OPV) cells. Optimal electrode composition and thickness are deduced from electrical and optical models and experiments, enabling a PHJ-OPV cell to be realized using a silver anode, achieving power conversion efficiency parity with an analogous cell that uses an indium tin oxide anode. Beneficial aspects of smooth, unpatterned metal films as transparent electrodes in OPV cells are also discussed in the text.


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