Metal and F dual-doping to synchronously improve electron transport rate and lifetime for TiO2 photoanode to enhance dye-sensitized solar cells performances
文献类型：期刊论文
| 作者 | Duan, Yandong1,2; Zheng, Jiaxin1; Xu, Ming1; Song, Xiaohe1; Fu, Nianqing2,3; Fang, Yanyan2; Zhou, Xiaowen2; Lin, Yuan1,2; Pan, Feng1 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2015-03-14 |
| 卷号 | 3期号:10页码:5692-5700 |
| 英文摘要 | A general strategy to synchronously improve electron transport rate and lifetime for TiO2 photoanode by metal and F- dual doping is proposed and demonstrated for dye-sensitized solar cells (DSSCs) for the first time. Tin and fluorine dual-doped TiO2 nanoparticles are prepared and X-ray photoelectron spectroscopy (XPS) analysis indicates that the Sn atoms and the F atoms locate mainly in the TiO2 lattice and on the TiO2 particles surface, respectively. The DSSC based on Sn/F-TiO2 sample shows a high photoconversion efficiency of 8.89% under an AM 1.5 solar condition (100 mW cm(-2)), which is higher than those for the undoped TiO2 nanoparticles (7.12%) and the solely Sn (8.14%) or F doped (8.31%) samples. This improvement is attributed to the combined effects of a faster electron transport rate and a longer electron lifetime in the dual-doped TiO2 film. Following this strategy, we also prepare Ta/F, Nb/F, and Sb/F dual-doped TiO2 nanoparticles and find that the performance of DSSCs based on all the dual-doped samples is further improved compared with the single doping cases. Finally, through density functional theory (DFT) calculations, the mechanism behind the improvement by tin and fluorine dual-doping is discussed in detail. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28273]  |
| 专题 | 化学研究所_光化学实验室 |
| 作者单位 | 1.Peking Univ, Shenzhen Grad Sch, Sch Adv Mat, Shenzhen 518055, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 3.Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Yandong,Zheng, Jiaxin,Xu, Ming,et al. Metal and F dual-doping to synchronously improve electron transport rate and lifetime for TiO2 photoanode to enhance dye-sensitized solar cells performances[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(10):5692-5700. |
| APA | Duan, Yandong.,Zheng, Jiaxin.,Xu, Ming.,Song, Xiaohe.,Fu, Nianqing.,...&Pan, Feng.(2015).Metal and F dual-doping to synchronously improve electron transport rate and lifetime for TiO2 photoanode to enhance dye-sensitized solar cells performances.JOURNAL OF MATERIALS CHEMISTRY A,3(10),5692-5700. |
| MLA | Duan, Yandong,et al."Metal and F dual-doping to synchronously improve electron transport rate and lifetime for TiO2 photoanode to enhance dye-sensitized solar cells performances".JOURNAL OF MATERIALS CHEMISTRY A 3.10(2015):5692-5700. |
入库方式： OAI收割
来源：化学研究所
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