期刊
NANOSCALE RESEARCH LETTERS
卷 7, 期 -, 页码 1-7出版社
SPRINGER
DOI: 10.1186/1556-276X-7-166
关键词
ZnO; nanoparticle; multiwalled carbon nanotube; composite film; dye-sensitized solar cells; conversion efficiency
资金
- Bureau of Energy, Ministry of Economic Affairs, Taiwan [A455DR2110]
A low-temperature, direct blending procedure was used to prepare composite films consisting of zinc oxide [ZnO] nanoparticles and multiwalled carbon nanotubes [MWNTs]. The mesoporous ZnO/MWNT films were fabricated into the working electrodes of dye-sensitized solar cells [DSSCs]. The pristine MWNTs were modified by an air oxidation or a mixed acid oxidation treatment before use. The mixed acid treatment resulted in the disentanglement of MWNTs and facilitated the dispersion of MWNTs in the ZnO matrix. The effects of surface property and loading of MWNTs on DSSC performance were investigated. The performance of DSSCs was found to depend greatly on the type and the amount of MWNTs incorporated. At a loading of 0.01 wt%, the acid-treated MWNTs were able to increase the power conversion efficiency of fabricated cells from 2.11% (without MWNTs) to 2.70%.
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