Single-Layer TiO2 Film Composed of Mesoporous Spheres for High-Efficiency and Stable Dye-Sensitized Solar Cells,ACS Sustainable Chemistry & Engineering

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Single-Layer TiO2 Film Composed of Mesoporous Spheres for High-Efficiency and Stable Dye-Sensitized Solar Cells
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-01-16 00:00:00 , DOI: 10.1021/acssuschemeng.7b03626
Yuewu Huang ₁ , Haigang Wu ₁ , Qingjiang Yu _{1,

2} , Jianan Wang _{1,

3} , Cuiling Yu ₄ , Jinzhong Wang ₁ , Shiyong Gao ₁ , Shujie Jiao ₁ , Xitian Zhang ₂ , Peng Wang ₃

Affiliation

Mesoporous TiO₂ spheres with high crystallinity and large specific surface area were facilely prepared via sol–gel and solvothermal methods. By tuning the time and temperature of the solvothermal process, the specific surface area and pore size of TiO₂ spheres were fine-controlled without any additives. Compared with the dye-sensitized solar cell (DSC) based on the commercial P25 nanoparticles, the dye-sensitized solar cell employing optimized TiO₂ spheres achieves an excellent efficiency of 10.3%, due to the outstanding dye-loading and light-scattering abilities as well as attenuated charge recombination. Furthermore, an impressive efficiency of 11.2% can be obtained after TiCl₄ post-treatment. More importantly, in combination with a single-layer TiO₂ film composed of mesoporous spheres and low-volatility electrolyte, the DSC exhibits high efficiency and long-term durability.

中文翻译：

介孔球组成的单层TiO ₂薄膜，用于高效稳定的染料敏化太阳能电池

通过溶胶-凝胶法和溶剂热法容易地制备了具有高结晶度和大比表面积的介孔TiO ₂球。通过调节溶剂热过程的时间和温度，无需任何添加剂即可精细控制TiO ₂球的比表面积和孔径。与基于商用P25纳米粒子的染料敏化太阳能电池（DSC）相比，采用优化的TiO ₂球体的染料敏化太阳能电池具有出色的10.3％效率，这归因于其出色的染料负载和光散射能力。以及减弱的电荷重组。此外，使用TiCl ₄后可获得令人印象深刻的11.2％的效率。后处理。更重要的是，与由介孔球和低挥发性电解质组成的单层TiO ₂膜结合使用时，DSC表现出高效率和长期耐久性。

更新日期：2018-01-16

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