Data from: A down-shifting Eu 3+ -doped Y 2 WO 6 /TiO 2 photoelectrode for improved light harvesting in dye-sensitized solar cells

Y1.86Eu0.14WO6 phosphors were prepared using a solid-state reaction method. Their optical properties were analysed, and they was mixed with TiO2, sintered, and used as a photoelectrode (PE) in dye-sensitized solar cells (DSSCs). The as-prepared photoelectrode was characterized by photoluminescence spectroscopy, diffuse reflectance, electrochemical impedance spectroscopy (EIS) and X-ray diffraction. The photoelectric conversion efficiency of the DSSC with TiO2:Y1.86Eu0.14WO6 (100:2.5) was 25.8% higher than that of a DSCC using pure TiO2 as PE. This high efficiency is due to the ability of the luminescent material to convert ultraviolet radiation from the sun to visible radiation, thus improving the solar light harvesting of the DSSC.Y₁.₈₆Eu₀.₁₄WO₆型荧光材料采用固相反应法（solid-state reaction method）制备。研究人员对其光学性能展开了分析，并将其与二氧化钛（TiO₂）混合后烧结，用作染料敏化太阳能电池（dye-sensitized solar cells, DSSCs）的光电极（photoelectrode, PE）。所制备的光电极通过光致发光光谱（photoluminescence spectroscopy）、漫反射光谱、电化学阻抗谱（electrochemical impedance spectroscopy, EIS）以及X射线衍射（X-ray diffraction）进行了表征。搭载TiO₂:Y₁.₈₆Eu₀.₁₄WO₆（质量比100:2.5）光电极的染料敏化太阳能电池，其光电转换效率较采用纯TiO₂作为光电极的染料敏化太阳能电池提升了25.8%。该高效性能源于所用发光材料可将太阳紫外辐射转化为可见辐射，从而提升了染料敏化太阳能电池的太阳能光捕获能力。