染料敏化乙炔黑-TiO_2复合多孔薄膜电极电性能研究  

Study on the electrical properties of dye-sentized acetylene black-TiO_2 composite porous films electrode

作　　者：马洪芳[1] 王小蕊[1] 江荣岩 张长存[1] 

机构地区：[1]山东建筑大学材料科学与工程学院,济南250101

出　　处：《功能材料》2015年第3期3077-3081,共5页Journal of Functional Materials

基　　金：山东省科技发展计划资助项目(2010G0020318);山东省自然科学基金资助项目(ZR2010EM062);山东省教育厅科技计划资助项目(J12LA12);济南市高校院所自主创新计划资助项目(201401233)

摘　　要：以P25为原料制备乙炔黑掺杂TiO2纳米粉体浆料,旋涂法制得乙炔黑-TiO2复合多孔薄膜,用染料N719和天然桑葚色素(MBY)敏化薄膜,组装成染料敏化太阳能电池(dye-sensitized solar cells,DSSCs)。借助电化学分析仪对电池进行测试表征。结果表明,乙炔黑的掺入降低了多孔薄膜电极的电荷传递电阻,从而加快了光电子的传递速率;两种敏化条件下,当乙炔黑掺杂量分别为0.15%和0.20%(质量分数)时,电池具有最大的光电转换效率,分别为0.30%和0.40%。电极中乙炔黑的含量过多时,过量的乙炔黑对光的竞争吸收作用降低了电池的光电子产率,引起了光电转换效率的下降。TiO2 nano-powder slurry was prepared by P25,and acetylene black (AB)-doped TiO2 (AB-TiO2 )com-posite porous films were fabricated by spin coating method.The films were sensitized by N7 1 9 and natural mul-berry pigment(MBY)dye-solution,and the dye-sensitized solar cells (DSSCs)were assembled.The DSSCs were tested by electrochemical analyzer.The results showed that AB dopant could improve the transporting rate of photoelectrons,reduce the carrier recombination.The biggest photoelectric conversion efficiency was 0.30%and 0.40% when AB-doped was 0.15% and 0.20wt% respectively.

关 键 词：太阳能电池 染料敏化 乙炔黑 复合 多孔薄膜 

分 类 号：O657.1[理学—分析化学]