| 高压合成AgSbTe2-Sb2Te3的热电性能研究 |
| |
| 引用本文： | 宿太超,张曙光,李小雷,马红安,李尚升,贾晓鹏.高压合成AgSbTe2-Sb2Te3的热电性能研究[J].高压物理学报,2011,25(4). |
| |
| 作者姓名： | 宿太超 张曙光 李小雷 马红安 李尚升 贾晓鹏 |
| |
| 作者单位： | 河南理工大学材料科学与工程学院;焦作师范高等专科学校数学系;吉林大学超硬材料国家重点实验室; |
| |
| 基金项目： | 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) |
| |
| 摘 要： | 利用高压方法，合成了富Sb2Te3的AgSbTe2热电材料(AgSbTe2)1-x(Sb2Te3)x (0≤x≤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Sb2Te3掺杂量的增加，(AgSbTe2)1-x(Sb2Te3)x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Sb2Te3的共同作用下，AgSbTe2的功率因子得到了提高；2.0 GPa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。
|
| 关 键 词： | 高压 热电材料 AgSbTe2 电阻率 功率因子 |
| 收稿时间： | 2010-06-08; |
Thermoelectric Properties of AgSbTe_2-Sb_2Te_3 Prepared by High Pressure Synthesis |
| |
| SU Tai-Chao,ZHANG Shu-Guang,LI Xiao-Lei,MA Hong-An,LI Shang-Sheng,JIA Xiao-Peng.Thermoelectric Properties of AgSbTe_2-Sb_2Te_3 Prepared by High Pressure Synthesis[J].Chinese Journal of High Pressure Physics,2011,25(4). |
| |
| Authors: | SU Tai-Chao ZHANG Shu-Guang LI Xiao-Lei MA Hong-An LI Shang-Sheng JIA Xiao-Peng |
| |
| Institution: | SU Tai-Chao1,ZHANG Shu-Guang2,LI Xiao-Lei1,MA Hong-An3,LI Shang-Sheng1,JIA Xiao-Peng1,3(1.Institute of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454003,China,2.Department of Mathematics,Jiaozuo Teachers College,Jiaozuo 454000,3.National Laboratory of Superhard Materials,Jinlin University,Changchun 130012,China) |
| |
| Abstract: | 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 Sb2Te3 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 10.4 μW/(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. |
| |
| Keywords: | high pressure thermoelectric material AgSbTe2 electrical resistivity power factor |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《高压物理学报》浏览原始摘要信息 |
| 点击此处可从《高压物理学报》下载免费的PDF全文 |
|
