Pt/Y2O3:Eu3+ composite nanotubes: Enhanced photoluminescence and application in dye-sensitized solar cells |
| |
| Authors: | Mingqi Yu Jiamin Su Guofeng Wang Yadong Li |
| |
| Affiliation: | 1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science,Heilongjiang University, Harbin 150080, China;2. Department of Chemistry, Tsinghua University, Beijing 100084, China |
| |
| Abstract: | ![]()
Y(OH)3:Eu3+ nanotubes were synthesized using a facile hydrothermal method,and then,Pt particles were grown on the surface of the nanotubes using a combination of vacuum extraction and annealing.The resulting Pt/Y2O3∶Eu3+ composite nanotubes not only exhibited enhanced red luminescence under 255-or 468-nm excitation but could also be used to improve the efficiency of dyesensitized solar cells,resulting in an efficiency of 8.33％,which represents a significant enhancement of 11.96％ compared with a solar cell without the composite nanotubes.Electrochemical impedance spectroscopy results indicated that the interfacial resistance of the TiO2-dye|I3-/I-electrolyte interface of the TiO2-Pt/Y2O3:Eu3+ composite cell was much smaller than that of a pure TiO2 cell.In addition,the TiO2-Pt/Y2O3:Eu3+ composite cell exhibited a shorter electron transport time and longer electron recombination time than the pure TiO2 cell. |
| |
| Keywords: | Pt/Y2O3:Eu3+ nanocrystals luminescence dye-sensitized solar cells |
| 本文献已被 万方数据 SpringerLink 等数据库收录！ |
|
