Positron annihilation study on microstructure and thermoelectric properties of Fe-doped CuAlO<sub>2</sub>

CHEN Song TANG Yu WANG Xuanli HANG Yanling HUANG Yuyang DENG Wen

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Positron annihilation study on microstructure and thermoelectric properties of Fe-doped CuAlO₂

更新时间：2021-03-05

- Positron annihilation study on microstructure and thermoelectric properties of Fe-doped CuAlO₂
- NUCLEAR TECHNIQUES Vol. 33, Issue 7, (2010)
- 作者机构：
  
  广西大学物理科学与工程技术学院
- 作者简介：
- 基金信息：
  
  国家自然科学基金(10764001);广西自然科学基金(桂科回0832003)资助
- DOI：
  CLC： TB34
- Published：01 July 2010
- 稿件说明：
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[1]陈松,唐宇,王选理,韩艳玲,黄宇阳,邓文.Fe掺杂CuAlO_2的微结构和热电性能的正电子湮没研究[J].核技术,2010,33(07):517-521.

CHEN Song TANG Yu WANG Xuanli HANG Yanling HUANG Yuyang DENG Wen. Positron annihilation study on microstructure and thermoelectric properties of Fe-doped CuAlO₂[J]. Nuclear techniques, 2010, 33(7): 517-521.
[1]陈松,唐宇,王选理,韩艳玲,黄宇阳,邓文.Fe掺杂CuAlO_2的微结构和热电性能的正电子湮没研究[J].核技术,2010,33(07):517-521. DOI：

CHEN Song TANG Yu WANG Xuanli HANG Yanling HUANG Yuyang DENG Wen. Positron annihilation study on microstructure and thermoelectric properties of Fe-doped CuAlO₂[J]. Nuclear techniques, 2010, 33(7): 517-521. DOI：

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。

Abstract

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.

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Positron annihilation study on microstructure and thermoelectric properties of Fe-doped CuAlO2

DOI：

摘要

Abstract

关键词

Keywords

references

Positron annihilation study on microstructure and thermoelectric properties of Fe-doped CuAlO₂