TiO2-B narrow nanobelt/TiO2 nanoparticle composite photoelectrode for dye-sensitized solar cells |
| |
| Authors: | Kai Pan Youzhen Dong Chungui Tian Wei Zhou Guohui Tian Baofeng Zhao Honggang Fu |
| |
| Affiliation: | aKey Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University), Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Xuefu Road No. 74, Nangang District, Harbin 150080, People's Republic of China |
| |
| Abstract: | In order to possess the merits of both building blocks, i.e. the rapid interfacial electron transport of TiO2-B narrow nanobelts (NBs) and the high surface area of TiO2 nanoparticles (NPs), the TiO2-B NBs and TiO2 NPs composites photoelectrodes were prepared with different weight ratios. The dye-sensitized solar cell prototypes were fabricated based on the composite photoelectrodes and the photoelectrical properties have been systematically studied. Although the amount of adsorption dye of composite solar cells decreased, the composite cells could obtain higher power conversion efficiency compared to pure TiO2 NP solar cell by rational tuning the weight ratio of TiO2-B NBs and TiO2 NPs, which was due to the faster electron transfer rate. The dye adsorption amount and interfacial electron transport, which together determined the overall photoelectrical conversion efficiency, were investigated by the UV–vis spectra, the electrochemical impedance spectra (EIS), intensity-modulated photocurrent spectroscopy (IMPS) and intensity-modulated photovoltage spectroscopy (IMVS). |
| |
| Keywords: | Dye-sensitized solar cells TiO2-B Nanobelt Composite Interfacial electron transfer |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
