ZnO microsheet modified TiO_2 nanoparticle composite films for dye-sensitized solar cells  

作　　者：ZHONG MinYi WANG Hai LIU Yong LIMing HUANG Hong SHEN Hui 

机构地区：[1]Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, SunYat-sen University, Guangzhou 510275, China

出　　处：《Chinese Science Bulletin》2010年第18期1945-1948,共4页

基　　金：supported by the National Natural Science Foundation of China (50702079);the National High-Tech Research and Development Program of China (2006AA05Z409)

摘　　要：Randomly oriented ZnO microsheets were successfully self-assembled on TiO2 nanoparticle(TN) film to act as the scattering layer via a cathodic electrodeposition process.The light scattering properties of ZnO microsheets were studied by UV-Vis spectrometer in the 400-800 nm wavelength range.It was found that ZnO microsheets exhibited excellent ability to scatter the incident light for ZnO microsheet-TiO2 nanoparticle(ZT) composite films.The results showed that dye-sensitized solar cells(DSSCs) fabricated with ZT composite films showed higher short-circuit density(Jsc) and conversion efficiency than TN-based DSSCs,due to the light scattering properties of ZnO microsheets.Randomly oriented ZnO microsheets were successfully self-assembled on TiO2 nanoparticle （TN） film to act as the scattering layer via a cathodic electrodeposition process. The light scattering properties of ZnO microsheets were studied by UV-Vis spec- trometer in the 40（~800 nm wavelength range. It was found that ZnO microsheets exhibited excellent ability to scatter the inci- dent light for ZnO microsheet-TiO2 nanoparticle （ZT） composite films. The results showed that dye-sensitized solar cells （DSSCs） fabricated with ZT composite films showed higher short-circuit density （Jsc） and conversion efficiency than TN-based DSSCs, due to the light scattering properties of ZnO microsheets.

关 键 词：染料敏化太阳能电池 氧化锌 复合膜 纳米二氧化钛 TIO2纳米粒子 二氧化钛纳米粒子 改性 光散射性能 

分 类 号：TM914.4[电气工程—电力电子与电力传动]