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由于一维(1D)氧化钛纳米结构具有提高染料敏化太阳能电池(DSCs)中的电子传输性能从而进一步提高电池性能的特性,该领域吸引了越来越多研究者的关注.但是一维氧化钛纳米结构如何影响电子传输性能却少有报道.本研究利用电化学阻抗谱(EIS)分析来探索氧化钛纳米颗粒和纳米管复合薄膜的电子传输特性.使用两种不同尺寸(25和100nm)的纳米颗粒和纳米管作为原料,采用电泳沉积方法制备了氧化钛复合薄膜并研究了原料的组成对染料敏化电池的影响以获得最佳的组成.研究结果表明,在大颗粒的质量分数低于20%时,大颗粒的掺入有利于改善氧化钛薄膜的电子传递与电池性能.与完全由颗粒组成的薄膜相比,纳米管的加入有利于电子在氧化钛薄膜里的传输.纳米管、100nm颗粒及25nm颗粒的最佳质量比例为20:16:64.
One-dimensional (1D) TiO 2 nanostructures have attracted more and more researchers’ attention due to their characteristics of improving the electron transport properties of dye-sensitized solar cells (DSCs) to further improve the battery performance. However, However, there are few reports on how the titanium nanostructures affect the electron transport properties.In this study, the electrochemical transmission spectra (EIS) were used to explore the electron transport properties of titanium oxide nanoparticles and nanotube composite films. Two different sizes (25 and 100 nm) Of nano-particles and nanotubes as raw materials, the use of electrophoretic deposition was prepared titania composite films and studied the composition of the dye-sensitized cells to get the best composition.The results show that the mass fraction of large particles At 20%, the incorporation of large particles is beneficial to the improvement of the electron transfer and the cell performance of titanium oxide films. The addition of nanotubes favors the transport of electrons in the titanium oxide film compared to films composed entirely of particles. , 100nm particles and 25nm particles the best mass ratio of 20:16:64.