AC conductivity studies of Fe doped TiO2 nanotubes

机译：Fe掺杂TiO2纳米管的AC电导率研究

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Fc-doped TiO2 nanotubes are prepared by the combination of sol-gel process with hydrothermal treatment. The morphology and crystalline structure of TiO2 nanotubes are characterized by transmission electron microscopy (TEM), X-ray diffraction respectively (XRD). Fe doping induces a structural transformation from anatase to rutile. The temperature dependence of the ac electrical conductivity is investigated in the temperature range 303-413 K. Positive temperature coefficient of resistance is observed in the Fe doped TiO2 nanotubes. PL spectrum shows the presence of oxygen vacancies and self trapped excitons in Fe doped TiO2 nanotubes and undoped samples.

机译：通过具有水热处理的溶胶 - 凝胶工艺的组合制备Fc掺杂的TiO2纳米管。 TiO2纳米管的形态和结晶结构的特征在于透射电子显微镜（TEM），X射线衍射（XRD）。 Fe掺杂诱导锐钛酶对金红石的结构转变。在温度范围内研究了交流电导率的温度依赖性303-413K.在Fe掺杂TiO2纳米管中观察到阳性温度系数。 PL光谱显示Fe掺杂TiO2纳米管和未掺杂的样品中的氧空位和自捕获的激子的存在。

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《International Conference on Materials Science and Technology》|2015年||共5页
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P.P. Vijayan; M.Thomas; K.C. George;
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中图分类工程材料学;
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AC conductivity studies of Fe doped TiO2 nanotubes

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