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以高度有序TiO2纳米管阵列作为光阳极,鸭跖草色素作为敏化剂制备了天然染料敏化太阳能电池。阳极氧化6h制备的TiO2纳米管作为电极的电池的光电转换效率约达0.52%,短路电流为1.53mA/cm2。比较不同管长TiO2纳米管阵列对电池的光电性能的影响。利用紫外-可见光光谱仪研究鸭跖草色素的光吸收性能。利用电化学阻抗谱分析电池的界面阻抗。研究表明适当提高TiO2纳米管长度可以有效提高天然染料敏化太阳能电池的光电性能。
A natural dye-sensitized solar cell was prepared using highly ordered TiO2 nanotube array as a photoanode and Commelina communis as sensitizer. Anodization 6h prepared TiO2 nanotubes as the electrode of the battery photoelectric conversion efficiency of about 0.52%, short-circuit current of 1.53mA / cm2. The effects of TiO2 nanotube arrays with different tube lengths on the photoelectric properties of the batteries were compared. Study on the Light Absorption Properties of the Melastomataceae Plantarum by UV - Vis Spectrophotometer. Analysis of cell interface impedance by electrochemical impedance spectroscopy. The research shows that properly increasing the length of TiO2 nanotubes can effectively improve the photoelectric properties of natural dye-sensitized solar cells.