成膜剂对染料敏化太阳电池性能的影响  

Influence of Filmogens on the Performance of Dye-sensitized Solar Cells

作　　者：纪伟伟[1] 张晓丹[1] 杨振华[1,2] 赵颖[1] 

机构地区：[1]南开大学光电子薄膜器件与技术研究所,南开大学光电子薄膜器件与技术天津市重点实验室,光电信息技术科学教育部重点实验室,天津300071 [2]河北工业大学微电子与固体电子学系,天津300130

出　　处：《人工晶体学报》2009年第6期1324-1328,共5页Journal of Synthetic Crystals

基　　金：国家重点基础研究发展计划项目(2006CB202602,2006CB202603);天津市重点基金项目(06YFJZJC01700);国家自然科学基金(No.60506003);科技部国际合作重点项目(2006DFA62390)

摘　　要：通过刮涂法将P25粉的乙醇体系配制的TiO2浆料制备成光阳极中的TiO2薄膜,在TiO2浆料中分别加入聚乙烯吡咯烷酮(PVP)和乙基纤维素(M70),作对比实验,研究发现加入PVP制备的TiO2薄膜的宏观和微观结构都得到了明显的改善,其影响了TiO2薄膜的孔隙率、比表面积和染料的吸附量,显著改善了染料敏化太阳电池性能,短路电流由5.59 mA/cm2增到11.31 mA/cm2,电池效率由2.70%增到5.31%(AM1.5)。TiO2 pastes were prepared using P25 powders and ethanol systems, which were used to make TiO2 films as photo anode by the method of doctor blade coating. Comparing poly-vinyl pyrrolidone （PVP） with ethyl cellulose （MT0） as film forming agents, it is discovered that the macro-and micro-structure of TiO2 film using PVP has been improved, which mainly affects TiO2 films porosities, surface area and dye adsorptions. PVP has played a significant role on the performances of dye-sensitized solar ceils. As a result, short-circuit current increased from 5.59 mA/cm^2 to 11.31 mA/cm^2 and conversion efficiency increased from 2.70% to 5.31% under the standard AM1.5 irradiation condition.

关 键 词：TiO2浆料 PVP 染料敏化太阳电池 

分 类 号：TM914[电气工程—电力电子与电力传动]