Details

Autor(en) / Beteiligte

• Guo, Fei
• Kubis, Peter
• Stubhan, Tobias
• Li, Ning
• Baran, Derya
• Przybilla, Thomas
• Spiecker, Erdmann
• Forberich, Karen
• Brabec, Christoph J

Titel

Fully Solution-Processing Route toward Highly Transparent Polymer Solar Cells

Ist Teil von

• ACS applied materials & interfaces, 2014-10, Vol.6 (20), p.18251-18257

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We report highly transparent polymer solar cells using metallic silver nanowires (AgNWs) as both the electron- and hole-collecting electrodes. The entire stack of the devices is processed from solution using a doctor blading technique. A thin layer of zinc oxide nanoparticles is introduced between photoactive layer and top AgNW electrode which plays decisive roles in device functionality: it serves as a mechanical foundation which allows the solution-deposition of top AgNWs, and more importantly it facilitates charge carriers extraction due to the better energy level alignment and the formation of ohmic contacts between the active layer/ZnO and ZnO/AgNWs. The resulting semitransparent polymer:fullerene solar cells showed a power conversion efficiency of 2.9%, which is 72% of the efficiency of an opaque reference device. Moreover, an average transmittance of 41% in the wavelength range of 400–800 nm is achieved, which is of particular interest for applications in transparent architectures.