Aqueous coating of efficient flexible TiO2 dye solar cell photoanodes

作者：Du Pasquier Aurelien^*; Stewart Mattew; Spitler Timothy; Coleman Mike

来源：Solar Energy Materials and Solar Cells, 2009, 93(4): 528-535.

DOI：10.1016/j.solmat.2008.10.029

• Dye
• Flexible
• ITO-PEN
• Gel
• PVDF

We describe the preparation and characterization of flexible TiO2 photoanodes coated on indium tin oxide-polyethylene naphthalate (ITO-PEN) substrates from aqueous solutions. We find that the use of hexafluorosalisilic acid promotes low-temperature connection of the TiO2 nanoparticles, considerably increasing the solar conversion efficiency. In addition, we report that highly dispersed TiO2 nanocrystals improve adhesion to the substrate, while micron-size aggregates improve the porosity of the photoanode. Hence, optimal results of 5% conversion efficiency at 0.5 sun are obtained by the combination of these two particle sizes.

• 出版日期2009-4