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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

电化学组装一维纳米线阵列p型Bi2Te3温差电材料

王为1; 贾法龙1; 黄庆华1; 张伟玲1; 郭鹤桐1; 申玉田2   

  1. 1. 天津大学化工学院应用化学系, 天津 300072; 2. 河北工业大学材料科学与工程学院 天津 300130
  • 收稿日期:2003-05-19 修回日期:2003-07-08 出版日期:2004-05-20 网络出版日期:2004-05-20

Electrochemical Assembled p-type Bi2Te3 Thermoelectric Materials with Nanowire Array Structure

WANG Wei1; JIA Fa-Long1; HUANG Qing-Hua1; ZHANG Wei-Ling1; GUO He-Tong1; SHEN Yu-Tian2   

  1. 1. Department of Applied Chemistry; School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072; China; 2. Institute of Material Science & Engineering; Hebei University of Technology; Tianjin 200130; China
  • Received:2003-05-19 Revised:2003-07-08 Published:2004-05-20 Online:2004-05-20

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摘要： 对p型Bi2Te3温差电材料的电沉积过程进行了研究,分析了添加剂对电沉积过程的影响.在此基础上,以孔径为50nm的阳极氧化铝多孔膜为模板,采用直流电沉积技术,在氧化铝多孔模板的纳米级微孔内电化学组装出了P型Bi2Te3纳米线阵列温差电材料.性能研究表明,P型Bi2Te3纳米线阵列的温差电性能远远超过具有相同组成的块状温差电材料。

关键词: p型温差电材料, Bi2Te3, 电化学组装, 纳米线阵列

Abstract: he electrodeposition process of p-type Bi2Te3 thermoelectric materials in the solution containing
Bi+3 and HTeO2+1 was investigated. During the electrodeposition prosess, Bi+3 can promote the reduction of HTeO2+1. The addition
of glycerin in the electrodepositing solution can decrease the solving rate of alumina templates in the solution, but glycerin also decreases the
electrodeposition rate remarkably. The p-type Bi2Te3 thermoelectric materials with nanowire array structure were electrochemically assembled
into the nano-pores of the alumina template. The performance measurements show that the Seebeck coefficient α of the nanowire array is much
higher than that of the bulk thermoelectric materials with the same composition.

Key words: p-type thermoelectric material, Bi2Te3, electrochemical assembling, nanowire array

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