纳米TiO_2染料敏化太阳电池的电极修饰和光电复合研究(英文)  

Electrode decoration and photoelectron recombination in nanocrystalline TiO_2 dye-sensitized solar cells

作　　者：蔡传兵[1] 王艳芳[1] 戴剑青[1] 桑园[1] 王晓祺[1] 刘志勇[1] ZENG Rong GUO Zai-ping 胡林华[3] 孔凡太[3] 戴松元[3] 

机构地区：[1]上海大学物理系,上海200444 [2]澳大利亚Wollongong大学超导与电子材料研究所,西南威尔州2522 [3]中国科学院等离子物理研究所新型薄膜太阳能电池重点实验室,安徽合肥230031

出　　处：《山东大学学报（工学版）》2009年第2期87-91,共5页Journal of Shandong University（Engineering Science）

基　　金：supported by the Science &Technology Committee of Shanghai Municipality(0752nm017);National Key Basic Research Program(No.2006CB601005) Founded by MOST;Shanghai Leading Academic Discipline Project(S30105)

摘　　要：染料敏化太阳电池由于其较高的光电转换效率和低成本等因素正越来越受到人们的重视,当前其技术发展最为核心的问题是如何减少暗电流、进一步提高其光电转换效率.本工作对染料敏化太阳电池的光阳极进行了不同方法的TiCl4修饰处理,测量了各种不同修饰处理下的TiO2太阳电池的光电转换性能.通过248nm波长的准分子脉冲激光辐照下的开路光电压Uoc随时间的衰减变化关系,研究了单色脉冲激光下的染料敏化TiO2太阳电池的光电子复合效应,从中明确了TiCl修饰对染料敏化TiO太阳电池暗电流的调制所起的重要作用.Dye-sensitized solar cells （DSC） have gained more and more attentions due to its high efficiency, low cost, relative ordinary execution technique and steady performance. Currently, the most important issue for DSC development is to further increase conversion efficiency by reducing dark currents. In this present work, the different TiCl4 processing is used for the decoration of TiO2 photoanode in dye-sensitized solar ceils. The photovoltaic performance of the built-up dye-sensitized TiO2 solar cells was investigated. By measuring the decay of U∞ with the time going after the irradiations of pulse monochrome wavelengths, we analyzed the different photoelectron recombination effects due to excitation states caused by 248 nm excimer pulse laser. It was re- vealed that the treatment of TiO2 photoanode plays a significant role in reducing dark current and enhancing photo-electronic conv- ersion efficiency of dye-sensitized TiO2 solar cells.

关 键 词：纳米晶TiO2太阳电池 TiCl4修饰 光电子复合 

分 类 号：O645[理学—物理化学] O631[理学—化学]