Abstract
The protonated titanate nanoparticles were obtained at room temperature and subsequently calcined at different temperatures(300 ℃,400 ℃,500 ℃,600 ℃ and 700 ℃) in air.The obtained products were characterized by XRD,TEM and UV-Vis.It is found that the grain sizes of TiO2 nanoparticles calcined at 300 ℃ were about 20 nm,and increased gradually with the temperature rise.Photoelectric performance was measured with I～V curve and electrochemical impedance spectroscopy(EIS).The TiO2 nanoparticles obtained at 500 ℃ showed the best photoelectrochemical properties with a photovoltaic conversion efficiency of 6.39%,which is much higher than those at other temperatures.In addition,it is also demonstrated that the charge transfer resistance of TiO2 nanoparticles obtained at 500 ℃ was much smaller.
Keywords
DSSCs, TiO2, nanoparticles, photoelectrochemical properties
Publication Date
2009-02-28
Online Available Date
2009-02-28
Revised Date
2009-02-28
Received Date
2009-02-28
Recommended Citation
Jie QU, Ying LI, Qi-wei JIANG, Xue-ping GAO.
Photoelectrochemical Properties of TiO_2 Nanoparticles[J]. Journal of Electrochemistry,
2009
,
15(1): 26-29.
DOI: 10.61558/2993-074X.1948
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol15/iss1/7
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