Efficiency Enhancement of Dye-Sensitized Solar Cells： Using Salt CuI as an Additive in an Ionic Liquid  

作　　者：陈烈杭 薛勃飞 刘喜哲 李可心 罗艳红 孟庆波 王瑞林 陈立泉 

机构地区：[1]College of Materials Science and Engineering, Sichuan University, Chengdu 610064 [2]Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080

出　　处：《Chinese Physics Letters》2007年第2期555-558,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 20673141, the National Basic Research Programme of China under Grant No 2006CB202606, the National High Technology Research and Development Programme of China under Grant No 2006AA03Z341, and the 100-Talents Project of Chinese Academy of Sciences.

摘　　要：Energy conversion efficiency of the dye-sensitized solar cell is improved from 3.5% to 4.5% by adding a small amount of CuI into an ionic liquid electrolyte. It is found that other copper-I salts, for example, CuBr, have the same effect for the dye-sensitized solar cell. Experimental results show that no Cu^2＋ ions exist in this electrolyte. It is suggested that this improvement is caused by the adsorption of Cu^＋ onto the TiO2 porous film.Energy conversion efficiency of the dye-sensitized solar cell is improved from 3.5% to 4.5% by adding a small amount of CuI into an ionic liquid electrolyte. It is found that other copper-I salts, for example, CuBr, have the same effect for the dye-sensitized solar cell. Experimental results show that no Cu^2＋ ions exist in this electrolyte. It is suggested that this improvement is caused by the adsorption of Cu^＋ onto the TiO2 porous film.

关 键 词：NANOCRYSTALLINE TIO2 GEL ELECTROLYTES RECOMBINATION ELECTRODES DEPOSITION CONVERSION TRANSPORT IODIDE FILMS 

分 类 号：TM914.4[电气工程—电力电子与电力传动]