Department of Materials Science and Engineering, Tianjin Institute of Urban Construction, 300384 Tianjin, China.
ACS Appl Mater Interfaces. 2011 May;3(5):1721-5. doi: 10.1021/am200232g. Epub 2011 May 5.
V-TiO₂(GC) photoanode film with graduated structure was prepared in a dye-sensitized solar cell work electrode by layer-by-layer method using TiO₂ precursor with gradations in V concentration on the indium tin oxide transparent conducting glass from substrate to surface. The effects of the gradient in V concentration on the structures and properties of TiO₂ photoanode film were discussed. The structure of the gradient V concentration has remarkable influence on the final performance of the DSSCs and I-V characteristic measurement indicates an enhanced efficiency by 31% as compared to pure TiO₂ nanoparticles film samples due to abundant solar light, fast injection and transmission velocity and the slowdown recombination of photoexcited electrons, simultaneously.
通过逐层方法，使用 V 浓度在从基底到表面逐渐变化的 TiO2 前体，在染料敏化太阳能电池工作电极上制备具有梯度结构的 V-TiO2(GC)光阳极薄膜。讨论了 V 浓度梯度对 TiO2 光阳极薄膜结构和性能的影响。梯度 V 浓度的结构对 DSSCs 的最终性能有显著影响，I-V 特性测量表明，由于丰富的太阳光、快速注入和传输速度以及光激发电子的复合减缓，与纯 TiO2 纳米颗粒薄膜样品相比，效率提高了 31%。
