期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 17, 期 4, 页码 1352-1357出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201002244
关键词
dye-sensitized solar cells; electrochemistry; hydrothermal synthesis; nanostructures; thin films; TiO2
资金
- National Natural Science Foundation of China [20873183, 21073239, U0934003]
- Natural Science Foundation of Guangdong Province [8151027501000030]
- Foundation of Sun Yat-Sen University
One-dimensional and quasi-one-dimensional semiconductor nanostructures are desirable for dye-sensitized solar cells (DSSCs), since they can provide direct pathways for the rapid collection of photogenerated electrons, which could improve the photovoltaic performance of the device. Quasi-1D single-crystalline anatase TiO2 nanostructures have been successfully prepared on transparent, conductive fluorine-doped tin oxide (FTO) glass with a growth direction of [101] through a facile hydrothermal approach. The influences of the initial titanium n-butoxide (TBT) concentration, hydrothermal reaction temperature, and time on the length of quasi-ID anatase TiO2 nanostructures and on the photovoltaic performance of DSSCs have been investigated in detail. A power conversion efficiency of 5.81% has been obtained based on the prepared TiO2 nanostructure photoelectrode 6.7 mu m thick and commercial N719 dye, with a short-circuit current density of 13.3 mA cm(-2) an open-circuit voltage of 810 mV, and a fill factor of 0.54.
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