摘要
介绍了天然色素敏化纳米晶太阳能电池的制作过程。应用分光光度计对大量天然色素进行光谱表征,从中选择与太阳光匹配的光敏化剂,以提高太阳能电池的光电转化率及降低其成本。该电池在全色光的照射下,转化阳光为电能的效率达到2.1%。开路电压为0.53V,短路光电流为4.2mA/cm2。比较所测量到的太阳能电池的光电转换效率时,认为电子被氧化还原介质重捕获而无法有效输送限制了电池的效率。
The structure and processing of dyesensitized nanocrystalline solar cell were introduced. A large quantity of natural dye was characterized by spectrophotometer. The sensitizer whose energy band matched with sunlight was selected to raise the photoelectric conversion efficiency and reduce the cost. Under simulated sunlight illumination, an open circuit photovoltage of 0.53 V and a short circuit current density of 4.2 mA/cm2 were measured. The overall energy conversion efficiency of the cell was 2.1%. When compared to the phototocurrent efficiency measured for the solar cell, the electron could not be transported inefficiently because of being recaptured by the redox mediator, thus limiting the efficiency of the cell.
出处
《化学工程》
CAS
CSCD
北大核心
2004年第3期47-49,共3页
Chemical Engineering(China)
基金
国家自然科学基金资助项目(50082003)
福建省国际合作项目(20011006)
福建省自然科学基金资助项目(E0110026)
关键词
天然色素
太阳能电池
光电转化率
natural dye
solar cell
photoelectric conversion efficiency
