Department of Materials Science and Engineering, Swiss Federal Institute of Technology (EPFL), Lausanne, CH1015, Switzerland
Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology (EPFL), Lausanne, CH1015, Switzerland
Low temperature processing of dye-sensitized solar cells (DSCs) is essential to enable commercialization with low cost plastic substrates and diminish the overall manufacturing cost. We report a low temperature processing route for photoanodes where thin ZnO nanoshell is deposited by atomic layer deposition at 150°C, on a mesoporous insulating template. We found that a 6 nm ZnO overlayer on a 3 µm mesoporous nanoparticle Al2O3 template shows a power conversion efficiency of 4.3 % with the standard organic sensitizer (coded Y123) and cobalt bipyridine redox mediator.