TiO_(2)复合碳化物制备染料敏化太阳能电池及性能研究

Preparation and properties of dye-sensitized solar cells with TiO_(2) composite carbides

运用原位刻蚀法制备MXene,将得到的MXene与商用TiO_(2)(P25)复合成不同的浓度的浆料。使用匀胶机将浆料旋涂于FTO导电玻璃上,研究烧结时间和烧结温度对器件性能的影响。对烧结后的薄膜进行扫描电子显微镜、X-射线衍射、紫外-可见吸收光谱等表征分析,浸泡染料后脱附染料使用紫外-可见吸收光谱测试染料吸附率。研究薄膜在光学性能上的影响,以及微观上对染料分子的吸附效果。组装成太阳能电池,对器件的光电转化效率进行测试。结果表明,复合浆料最优的烧结工艺是在450℃烧结1 h,随着MXene占比增大,太阳能电池的光电转化效率增加,最高的光电转化效率为2.25%。

MXene was prepared by in-situ etching, and the obtained MXene was compounded with commercial TiO_(2)(P25) into slurry with different concentrations. The effects of sintering time and sintering temperature on the performance of FTO conductive glass were studied. The sintered film was characterized by scanning electron microscope, X-ray diffraction and UV-Vis absorption spectrum. The dye was desorbed after soaking the dye, and the dye adsorption rate was measured by UV-Vis absorption spectrum. The influence of the film on the optical properties and the micro adsorption effect on dye molecules were studied. The photoelectric conversion efficiency of the device was tested. The results show that the optimal sintering process of the composite slurry is sintering at 450 ℃ for 1hour. With the increase of the proportion of MXene, the photoelectric conversion efficiency of solar cells also increases, and the highest photoelectric conversion efficiency is 2.25%.