Tunable synthesis of mesoporous titania with different morphologies for dye-sensitized solar cells
| Autor: | Li-Jiao Ma, Zhen-Fan Sun, Yang-Hong Wu, Xiao-Dong Qiao, Xin-Yu Ye, Bing-Xin Lei |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
General Chemical Engineering chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Light scattering Hydrothermal circulation 0104 chemical sciences law.invention Dye-sensitized solar cell Chemical engineering chemistry Mechanics of Materials law Specific surface area Solar cell 0210 nano-technology Mesoporous material Layer (electronics) Titanium |
| Zdroj: | Advanced Powder Technology. 32:99-105 |
| ISSN: | 0921-8831 |
| DOI: | 10.1016/j.apt.2020.11.019 |
| Popis: | Different TiO2 mesoporous structures, including core-shell spheres (CCSs) and micro-tubes (MTs), are synthesized through adjusting the pH of the solution using TiOSO4 as titanium source in a hydrothermal route. TiO2 CSSs with an average diameter of 1.3–3.5 μm exhibit excellent light scattering property and high specific surface area (177.63 m2 g−1). TiO2 MTs show ultrahigh specific surface area of 276.03 m2 g−1. Dye-sensitized solar cell is fabricated using TiO2 CSSs as the light scattering layer and TiO2 nanoparticles (NPs) layer as the bottom layer. The efficiency of Cell-NPs + CSSs is up to 9.24% due to the good light scattering effect and excellent dye loading capacity. Furthermore, TiO2 MTs are introduced to form the NPs/MTs bottom layer. The Cell-NPs/MTs + CSSs achieves an outstanding efficiency of 9.60% due to the further optimized electron transport path. |
| Databáze: | OpenAIRE |
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