Photovoltaic performances of {DSCs} fabricated with a screen-printable TiO2-submicrosphere paste
By Muhammad, Niaz; Zanoni, Kassio Papi Silva; Coppo, Rodolfo Lopes; Ahmed, Safeer; Iha, Neyde Yukie Murakami
Published in Journal of Photochemistry and Photobiology A: Chemistry
NULL
2017
Abstract
Abstract In this work, mesoporous anatase submicrospheres, consisted of packed individual 6 nm nanocrystallites, were prepared by hydrolysis of titanium glycolate and compared with TiO2 nanoparticles obtained by the hydrothermal method. The submicrometer spheres show an average diameter of 0.40 ?m, while the TiO2 nanoparticle diameter is 20 nm. Here, we developed a screen-printable submicrosphere paste to deposit bifunctional films with increased light scattering and higher dye uptake. In dye-sensitized solar cells, these films lead to a 32% increase in conversion efficiencies when compared to those with standard TiO2 nanoparticles and can be even improved after TiCl4 post-treatment.
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