Abstract
All-solid-state quantum dot-sensitized TiO2 nanotube array solar cells have been drawing great attention to solar energy conversion, which break through restrictions in traditional solar cells, such as the high recombination at interfaces of porous TiO2 films/sensitizers/hole conductors/counter electrodes, instability of dyes, and leakage of solution electrolyte, and so the novel solar cells exhibit promising applications in the future. In this Minireview article, the assembling of solar cells including the preparation of TiO2 nanotube array photoanodes, quantum dot preparation and sensitization on photoanodes, filling of hole conductors in TiO2 nanotubes, and selection of counter electrodes are overviewed, and the development course of all-solid-state quantum dot-sensitized TiO2 nanotube array solar cells in recent years are summarized in detail. Moreover, the influences of TiO2 nanotube array photoanodes, quantum dots, solid electrolyte, and counter electrodes on photon-to-current efficiencies of solar cells are summarized. In addition, current problems of solid-state quantum dot-sensitized TiO2 nanotube array solar cells are analyzed, and the corresponding improvements, such as multisensitizers and passivation layers, are proposed to improve the photoelectric conversion efficiency. Finally, this Minireview provides a perspective for the future development of this novel solar cell.
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This work was financially supported by the National Natural Science Foundation of China (51402145), the Nanotechnology Special foundation of Shanghai (11nm0500700), and the Key Project of Natural Science Foundation of Shandong Province (ZR2013EMZ001).
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Wang, Q., Chen, C., Liu, W. et al. Recent progress in all-solid-state quantum dot-sensitized TiO2 nanotube array solar cells. J Nanopart Res 18, 7 (2016). https://doi.org/10.1007/s11051-015-3314-9
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DOI: https://doi.org/10.1007/s11051-015-3314-9