Alternatives for replacing the expensive ITO are explored and Poly(ethylene dioxythiophene):polystyrene sulfonate (PEDOT:PSS) is introduced as one possibility. We present the first small-molecule organic solar cells employing only PEDOT:PSS as transparent electrode. Solar cells on glass and on flexible plastic foil were prepared, using a p-doped hole transporting material, zinc phthalocyanine (ZnPc) and C60 as donor- acceptor heterojunction, and an exciton blocking layer. Different methods to structure the PEDOT:PSS electrodes were investigated and are presented. As proof of principle, non-optimized prototype cells with efficiencies of over 0.7% on glass and 0.9% on flexible plastic foil substrate were obtained.
CITATION STYLE
Meiss, J., Uhrich, C. L., Fehse, K., Pfuetzner, S., Riede, M. K., & Leo, K. (2008). Transparent electrode materials for solar cells. In Photonics for Solar Energy Systems II (Vol. 7002, p. 700210). SPIE. https://doi.org/10.1117/12.781275
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