Versatile preparation method for mesoporous TiO2 electrodes suitable for solid-state dye sensitized photocells |
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Authors: | G K R Senadeera S Kobayashi T Kitamura Y Wada S Yanagida |
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Affiliation: | (1) Institute of Fundamental Studies, Hantane Road, Kandy, Sri Lanka;(2) Material and Life Science, Graduate School of Engineering, Osaka University, Suita, 565-0871 Osaka, Japan;(3) Centre for Advanced Science and Innovation, Osaka University, Suita, 565-0871 Osaka, Japan |
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Abstract: | Nano-structured TiO2 electrodes, suitable for dye sensitized solid-state solar cells were prepared by a new simple spraying technique (SPT). Physical
properties of these electrodes were compared with the electrodes prepared by the ‘doctor blade’ technique (typical sliding
method, DB). Dye sensitized solid-state solar cells, comprising of CuI as the hole conductor, were fabricated with these electrodes
and enhanced photo responses were obtained with SPT electrodes. The effects of additives, either to the spray solution or
to the hole conductor on the photoresponses of the above devices were also studied. The cells fabricated with SPT electrodes
containing Al(BuiO)3 showed ∼ 2.4% efficiency and addition of 1-ethyl-3-methyl imidazolium thiocyanate into CuI layer further enhanced the efficiency
up to 2.75% under the irradiance of 100 mW cm−2 (AM 1.5). |
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Keywords: | Nano-oxides dye sensitization solid-state cells spray pyrolysis titanium dioxide |
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