Photovoltaic Performance Optimization of Natural Trollius Sensitized Solar Cells
Dye-sensitized solar cell is gradually becoming a strong competitor to Si-based solar cells,attracting much attention both from research and industry.Organic dyes used in dye-sensitized solar cells usually resemble dyes found in plants,fruits,and other natural products.In the present study,trollius pigment was extracted from a natural flower named trollius petals to serve as the sensitizer of the cells.UV-Vis absorption measurement revealed that the extracted pigment had a stronger absorbance under acid condition than that under basic condition.Devices were assembled with this trollius pigment,by systematically correlating the photovoltaic performance with the pH value of dye solution,film thickness and the sensitization time of the photoanode.The power conversion efficiency was increased by 37.9% when the pH of the dye solution was changed from alkaline (pH=9) to acidic (pH=4.3).The optimized efficiency of 0.254% was obtained when the film thickness was 13μm and the sensitization time was 3h under acidic condition.
dye sensitized solar cell film thickness natural sensitizer pH value,sensitization time
Guijun YANG Senrui WANG Hong LIN Gang WANG Yongchang ZHANG Feng HAO Huiyuan CHEN
Collage of Chemical Engineering,Qinghai University,Xining,Qinghai 810016,China Collage of Material,Beijing University of Technology,Beijing 100081,China Collage of Chemical Engineering,Qinghai University,Xining,Qinghai 810016,China;State Key Laboratory State Key Laboratory of New Ceramics & Fine Processing,Department of Material Science and Engineerin
国际会议
The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))
厦门
英文
1614-1618
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）