中文摘要：

测量了CuAl1-xFexO2样品的X射线衍射图、热电性能、符合正电子湮没辐射多谱勒展宽谱和寿命谱。结果表明，在CuAlO2中加入少量的Fe（x≤0．10），样品的正电子湮没辐射多谱勒展宽谱的3d信号增强，正电子S参数、正电子平均寿命和电阻率降低；当Fe含量较高（x〉0．10）时，随Fe含量增加，CuAl1-xFexO2样品的正电子湮没辐射多谱勒展宽谱的3d信号降低，正电子S参数、正电子平均寿命和电阻率升高。CuAl1-xFexO2室温Seebeck系数随样品中缺陷浓度升高。讨论了Fe掺杂对CuAlO2微结构和热电性能的影响。

英文摘要：

The measurements of XRD, thermoelectric properties, positron lifetime and its coincidence Doppler broadening spectra for the samples of CuAl1-xFexO2 （0≤x≤0.20） were performed. The results show that doping the CuAlO2 with small amount of Fe （x〈0.10） enhances the 3d electron signals of positron coincidence Doppler broadening spectra of the sample, and reduces the S parameter and mean lifetime of the positrons, and resistivity of the sample as well, whereas for x〉0.10, the S parameter, and lifetime of positron, and the sample resistivity, increase with the Fe contents, but the 3d electron signal decreases with increasing Fe contents. The Seebeck coefficients of CuAl1-xFexO2 at room temperature increase with defect concentration. The Fe dopant effects on microstructure and thermoelectric properties of CuAlO2 are discussed.