TiO_2/ZnO薄膜电极中光生电子的传输及其在太阳电池中的应用  

Electron Transportation in the TiO_2/ZnO Film Electrodes and Application for Dye-sensitized Solar Cells

作　　者：庞山[1] 谢腾峰[1] 张宇[1] 魏霄[1] 杜祖亮[2] 王德军[1] 

机构地区：[1]吉林大学化学学院,长春130012 [2]河南大学特种功能材料重点实验室,开封475001

出　　处：《高等学校化学学报》2007年第11期2187-2189,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20673049;20473033)资助

摘　　要：The TiO2 based dye-sensitized solar cells doped with different sizes of ZnO nanorods were fabricated and studied by photoelectrochemical measurements. The results show that the energy conversion efficiency of the dye-sensitized solar cells after the addition of ZnO nanorods(1%, mass fraction) was increased by 6%—20% in comparison with that without ZnO nanorods. The effect of different sizes of ZnO nanorods on the electronic transportation properties was studied in the composite semiconductor film by means of transient photovoltage technology(TPV). The result indicates that the electron diffusing velocity in N3-sensitized TiO2/ZnO film electrode was about 1—3 order of magnitude faster than that in TiO2 electrode. The experimental results indicate that the TiO2/ZnO electrode can improve the electron transport, decrease the recombination, enhance Voc, and increase efficiency of energy conversion.The TiO2 based dye-sensitized solar cells doped with different sizes of ZnO nanorods were fabricated and studied by photoelectrochemical measurements. The results show that the energy conversion efficiency of the dye-sensitized solar cells after the addition of ZnO nanorods （ 1 %, mass fraction） was increased by 6%--20% in comparison with that without ZnO nanorods. The effect of different sizes of ZnO nanorods on the electronic transportation properties was studied in the composite semiconductor film by means of transient photovohage technology（TPV）. The result indicates that the electron diffusing velocity in N3-sensitized TiO2/ZnO film electrode was about 1-3 order of magnitude faster than that in TiO2 electrode. The experimental results indicate that the TiO2/ZnO electrode can improve the electron transport, decrease the recombination, enhance Voc, and increase efficiency of energy conversion.

关 键 词：太阳电池 瞬态光电压 电子传输 多孔薄膜电极 

分 类 号：O643[理学—物理化学]