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高压合成AgSbTe2-Sb2Te3的热电性能研究
  • ISSN号：1000-5773
  • 期刊名称：《高压物理学报》
  • 时间：0
  • 分类：O521.2[理学—高压高温物理;理学—物理]
  • 作者机构：[1]河南理工大学材料科学与工程学院,河南焦作454003, [2]焦作师范高等专科学校数学系,河南焦作454000, [3]吉林大学超硬材料国家重点实验室,吉林长春130012
  • 相关基金：国家自然科学基金（51001042,50801030,50731006）;吉林大学超硬材料国家重点实验室开放基金（201005）;河南理工大学博士基金（B2010-55）
作者： 宿太超[1], 张曙光[2], 李小雷[1], 马红安[3], 李尚升[1], 贾晓鹏[1,3]
关键词： 高压, 热电材料, AgSbTe2, 电阻率, 功率因子, high pressure thermoelectric material , AgSbTe2 electrical resistivity power factor
中文摘要：

利用高压方法，合成了富Sb2Te3的AgSbTe2热电材料（AgSbTe1）1-x（Sb2Te3）x（0≤z≤0．3），并对其结构和热电性质进行了研究。结果表明：（AgSbTe2）1-x（Sb2Te3）x样品为近单相的AgSbTe2材料；随着制备压力和SbzTe3掺杂量的增加，（AgSbTe2）1-x（Sb2Te3）。的电阻率大幅降低；Seebeck系数在高压作用下变小，而少量掺杂Sb2Te3却能提高Seebeck系数；在高压和微量掺杂sb：Te。的共同作用下，AgSbTe。的功率因子得到了提高；2．0GPa高压下，制备的Ag0.9Sb1.1Te2：1的品质因子达到0．466，接近Bi2Te3的品质因子。

英文摘要：

The p-type thermoelectric materials of AgSbTe2 alloyed with Sb2Te3 （（AgSbTe2）1-x （Sb2Te3）x,0≤x≤0. 3） are prepared by high pressure method. The structure and thermoelectric properties of （AgSbTe2）1-x（Sb2Te3）x are studied at room temperature. Experimental results indicate that the samples are near single phase AgSbTe2 when x≤0.1. The electrical resistivity of the sample decreases dramatically with the increasing of synthetic pressure and Sb2 Tea content x. The Seebeck coefficient increases. The high pressure combining with Sb2Te3 doping can improve the power factor of AgSbTe2 effectively. Moreover,the enhanced power factor reaches 10.4μW/（cm ·K2） ,and the high figure of merit reaches 0. 466 for （AgSbTe2）0.9 （Sb2Te3）0.1 prepared at 2.0 GPa,which is close to that of Bi2Te3.

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期刊信息
  • 《高压物理学报》
  • 北大核心期刊（2011版）
  • 主管单位:四川省科学技术协会
  • 主办单位:中国物理学会 高压物理专业委员会 四川省物理学会
  • 主编：邹广田
  • 地址：四川省绵阳市919信箱110分箱
  • 邮编：621999
  • 邮箱：gaoya@caep.cn
  • 电话：0816-2490042
  • 国际标准刊号：ISSN：1000-5773
  • 国内统一刊号：ISSN：51-1147/O4
  • 邮发代号:62-132
  • 获奖情况:
  • 中国物理类核心期刊,EI、CI收录期刊,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:3617