Abstract: | |
The low-temperature fabrication of flexible ZnO photo-anodes for dye-sensitized solar cells (DSSCs) by templated electrochemical deposition of films was performed in an enlarged and technical simplified deposition setup to demonstrate the feasibility of the scale-up of the deposition process. After extraction of eosin Y (EY) from the initially deposited ZnO/EY hybrid films, mesoporous ZnO films with an area of about 40 cm2 were reproducibly obtained on fluorine doped tin oxide (FTO)-glass as well as flexible indium tin oxide (ITO)-polyethylenterephthalate (PET) substrates. With a film thickness of up to 9 μm and a high specific surface area of up to about 77 m2·cm-3 the ZnO films on the flexible substrates show suitable properties for DSSCs. Operative flexible DSSC modules proved the suitability of the ZnO films for use as DSSC photo-anodes. Under a low light intensity of about 0.007 sun these modules achieved decent performance parameters with conversion efficiencies of up to 2.58%. With rising light intensity the performance parameters deteriorated, leading to conversion efficiencies below 1% at light intensities above 0.5 sun. The poor performance of the modules under high light intensities can be attributed to their high series resistances. © 2018 by the authors.
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License of this version: | CC BY 4.0 Unported - https://creativecommons.org/licenses/by/4.0/ |
Publication type: | Article |
Publishing status: | publishedVersion |
Publication date: | 2018 |
Keywords english: | Dye-sensitized solar cell, Electrochemical deposition, Eosin Y, Scale-up, Solar module, Zinc oxide, Anodes, Conversion efficiency, Deposition, Efficiency, Electric resistance, Electrodeposition, Electrodes, Fabrication, ITO glass, Metallic films, Nanocomposites, Oxide films, Reduction, Solar cells, Temperature, Thin films, Tin, Tin compounds, Tin oxides, Zinc compounds, Zinc oxide, Electrochemical deposition, Eosin Y, Flexible dye sensitized solar cell, Fluorine doped tin oxide, High specific surface area, Low-temperature fabrication, Scale-up, Solar module, Dye-sensitized solar cells |
DDC: | 624 | Ingenieurbau und Umwelttechnik |
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