Transparent electrode materials for solar cells

Conference item

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.

Authors: Meiss, J; Uhrich, C; Fehse, K; Pfuetzner, S; Riede, M

• Publication status: Published
• Peer review status: Reviewed (other)
• Publisher: Society of Photo-Optical Instrumentation Engineers
• Host title: Proceedings of SPIE - The International Society for Optical Engineering
• Volume: 7002
• Publication date: 2008-01-01
• DOI: 10.1117/12.781275
• ISSN: 0277-786X
• ISBN: 9780819472007
• Language: English
• Keywords: PEDOT:PSS; transparent electrode; ITO; solar cell; small-molecule; conductive polymer