Simultaneous multilayer formation of the polymer solar cell stack using roll-to-roll double slot-die coating from water
| Autor: | Mikkel Jørgensen, Thue Trofod Larsen-Olsen, Arvid P.L. Böttiger, Jens Wenzel Andreasen, Thomas Rieks Andersen, Kion Norrman, Eva Bundgaard, Birgitta Andreasen, Frederik C. Krebs |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
Organic solar cell Renewable Energy Sustainability and the Environment Analytical chemistry engineering.material Polymer solar cell Surfaces Coatings and Films Electronic Optical and Magnetic Materials Active layer Secondary ion mass spectrometry Coating PEDOT:PSS Transmission electron microscopy Electrode engineering |
| Zdroj: | Solar Energy Materials and Solar Cells. 97:22-27 |
| ISSN: | 0927-0248 |
| DOI: | 10.1016/j.solmat.2011.08.026 |
| Popis: | Double slot-die coating using aqueous inks was employed for the simultaneous coating of the active layer and the hole transport layer (HTL) in fully roll-to-roll (R2R) processed polymer solar cells. The double layer film was coated directly onto an electron transport layer (ETL) comprising doped zinc oxide that was processed by single slot-die coating from water. The active layer comprised poly-3-hexylthiophene:Phenyl-C 61 -butyric acid methyl ester (P3HT:PCBM) as a dispersion of nanoparticles with a radius of 46 nm in water characterized using small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM), and atomic force microscopy (AFM). The HTL was a dispersion of poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) in water. The films were analyzed using time-of-flight secondary ion mass spectrometry (TOF-SIMS) as chemical probe and X-ray reflectometry as physical probe, confirming the identity of the layered structure. The devices were completed with a back electrode of either Cu tape or evaporated Ag. Under standard solar spectrum irradiation (AM1.5G), current–voltage characterization ( J–V ) yielded an open-circuit voltage ( V oc ), short-circuit current ( J sc ) , fill factor ( FF), and power conversion efficiency ( PCE ) of 0.24 V, 0.5 mA cm −2 , 25%, and 0.03%, respectively, for the best double slot-die coated cell. A single slot-die coated cell using the same aqueous inks and device architecture yielded a V oc , J sc , FF , and PCE of 0.45 V, 1.95 mA cm −2 , 33.1%, and 0.29%, respectively. |
| Databáze: | OpenAIRE |
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