Synthesis of Zr-incorporated TiO2 Using a Solvothermal Method and its Photovoltaic Efficiency on Dye-sensitized Solar Cells

Bulletin of the Korean chemical society

Misook Kang¹  Sujung Kim¹ 

关键词: Solvothermal method;    Zr-TiO2;    Dye-sensitized solar cells;    Energy conversion efficiency;    Impedance;    Photoluminescence;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

This study examines the photoelectric conversion efficiency of dye-sensitized solar cells (DSSCs) when nanometer-sized Zr (0.1, 0.5, and 1.0 mol %)-TiO2 prepared using a solvothermal method is utilized as the working electrode material. The particle sizes observe in the transmission electron microscopy (TEM) images are < 30 nm in all samples. The absorption band is slightly broadened at the tail for the 0.1 mol % Zr-TiO2, and the intensity of the photoluminescence (PL) curves of the Zr-incorporated TiO2 is significantly smaller than that of the pure TiO2. Compared to that using pure TiO2, the energy conversion efficiency is enhanced considerably by the application of Zr-TiO2 in the DSSCs to approximately 6.17% for 0.5 mol % Zr-TiO2 with the N719 dye (10.0 μm film thickness and 5.0 mm × 5.0 mm cell area) under 100 mW/cm2 of simulated sunlight.

【 授权许可】

Unknown