Chemical treatments of the nanocrystalline porous TiO_2 electrodes  

作　　者：ZHANG Dongshe, LIU Yao, WANG Weibo & XIAO XuruiLaboratory of Photochemistry, Center for Molecular Science, Institute of Chemistry. Chinese Academy of Sciences, Beijing100080, China.Correspondence should he addressed to Xiao Xurui 

出　　处：《Chinese Science Bulletin》2000年第21期1956-1959,共4页

摘　　要：Two types of nanocrystalline porous TiO2 electrodes were prepared by the hydrothermal and painting methods. The incident photon-to-current efficiency and photoelectrical conversion efficiency were both improved by chemical treatments of titanium tetrachloride and titanium isopropoxide. The surface roughness, quantities of adsorbed dye, photocurrent-voltage curves, IR spectra and UV-visible absorption spectra were measured, and the mechanism of chemical treatments was discussed.Two types of nanocrystalline porous TiO2 electrodes were prepared by the hydrothermal and painting methods. The incident photon-to-current efficiency and photoelectrical conversion efficiency were both improved by chemical treatments of titanium tetrachloride and titanium isopropoxide. The surface roughness, quantities of adsorbed dye, photocurrent-voltage curves, IR spectra and UV-visible absorption spectra were measured, and the mechanism of chemical treatments was discussed.

关 键 词：NANOCRYSTALLINE POROUS TiO₂ film DYE SENSITIZATION chemical treatment solar cell. 

分 类 号：O614[理学—无机化学]