Titanium dioxide is a promising wide band gap semiconducting material for dye-sensitized solar. The poor electron transport properties still remain a challenge with conventional nanoparticles. Here, we synthesized TiO₂ nanorods/nanoparticles by hydrothermal method to improve the charge transport properties. The structural and morphological information of the prepared nanorods/nanoparticles was analyzed with X-ray diffraction and electron microscopy analysis, respectively. A high power conversion efficiency of 7.7% is achieved with nanorods/nanoparticles employed device under 100 mW/cm². From the electrochemical impedance analysis, superior electron transport properties have been found for synthesized TiO₂ nanorods/nanoparticles employed device than commercial P25 nanoparticles based device.

中文翻译：

---

水热衍生纳米多孔二氧化钛纳米棒/纳米粒子及其在染料敏化太阳能电池中作为光阳极的影响

二氧化钛是用于染料敏化太阳能的有前途的宽带隙半导体材料。较差的电子传输性能仍然是常规纳米颗粒的挑战。在这里，我们通过水热法合成了TiO ₂纳米棒/纳米粒子，以改善电荷传输性能。分别通过X射线衍射和电子显微镜分析对制备的纳米棒/纳米颗粒的结构和形态信息进行分析。使用纳米棒/纳米颗粒的装置在100 mW / cm ²下实现了7.7％的高功率转换效率。通过电化学阻抗分析，已发现合成的TiO ₂具有优异的电子传输性能 纳米棒/纳米颗粒所采用的器件要比市售的基于P25纳米颗粒的器件高。