Department of Mechanical Engineering, School of Engineering and Information Technology, Manipal Acadamy of Higher Education, Dubai, United Arab Emirates.
Research Institute of Electronics, Shizuoka University, Shizuoka, Japan.
Microsc Res Tech. 2023 Jul;86(7):813-822. doi: 10.1002/jemt.24342. Epub 2023 May 10.
Specifically engineered three-dimensional (3D) and 1D morphologies are expected to play significant roles in the development of next-generation dye-sensitized solar cells. In this study, using a hydrothermal approach without a surfactant or template, we attempted to synthesize a 3D hierarchical rutile titanium dioxide (TiO ) architecture by varying the growth temperature and time. X-ray diffraction patterns of the synthesized TiO correlated well with rutile TiO . Scanning electron microscopy images exhibited different nanostructures, such as nanorods, aggregated nanorods, and 3D TiO microflowers comprised of nanorods at 100°C, 130°C, and 160°C, respectively, after growth for 6 h. A significantly improved efficiency was observed for the TiO microflowers. The TiO microflowers exhibited an efficiency of 1.16%, short-circuit current density of 12.8 mA cm , open-circuit voltage of 0.692 V, and fill factor of 0.67.
具体设计的三维（3D）和一维（1D）形态有望在下一代染料敏化太阳能电池的发展中发挥重要作用。在这项研究中，我们使用没有表面活性剂或模板的水热法，通过改变生长温度和时间，尝试合成 3D 分级锐钛矿二氧化钛（TiO ）结构。合成的 TiO 的 X 射线衍射图谱与锐钛矿 TiO 很好地吻合。扫描电子显微镜图像显示了不同的纳米结构，例如在 100°C、130°C 和 160°C 下生长 6 小时后，分别得到纳米棒、聚集纳米棒和由纳米棒组成的 3D TiO 微花。TiO 微花的效率有了显著提高。TiO 微花的效率为 1.16%，短路电流密度为 12.8 mA·cm -2 ，开路电压为 0.692 V，填充因子为 0.67。
