Citation: FAN Le-Qing, LI Zhao-Lei, HUANG Yun-Fang, LIN Jian-Ming, WU Ji-Huai. Application of Gd2O3:Er3+ Up-Conversion Luminescent Powder in Dye-Sensitized Solar Cells[J]. Chinese Journal of Inorganic Chemistry, ;2015, (1): 147-152. doi: 10.11862/CJIC.2015.005
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Gd2O3:Er3+ up-conversion luminescent powder was synthesized by precipitation-calcination method, and characterized by X-ray diffraction, scanning electron microscope, energy dispersive spectrometry and fluorescence spectroscopy. The luminescent powder was added to the TiO2 photoanode of dye-sensitized solar cells to make use of up-conversion luminescent character. The results indicate that Gd2O3:Er3+ up-conversion luminescent powder with tubular morphology improves the light harvesting via a conversion luminescence process and increases absorption efficiency by light scattering, resulting in the increment of photocurrent and photovoltage. When TiO2 is doped by 5wt% Gd2O3:Er3+, the overall light-to-electric conversion efficiency is enhanced from 5.93% to 7.55%, i.e. about 27% increase.
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