[1]范平,郑壮豪,梁广兴,等.离子束溅射制备Bi2Te3热电薄膜[J].深圳大学学报理工版,2011,28(No.1(001-095)):84-88.
 FAN Ping,ZHENG Zhuang-hao,LIANG Guang-xing,et al.Preparation of Bi2Te3 thermoelectric thin films by ion beam sputtering[J].Journal of Shenzhen University Science and Engineering,2011,28(No.1(001-095)):84-88.
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离子束溅射制备Bi2Te3热电薄膜()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第28卷
期数:
2011年No.1(001-095)
页码:
84-88
栏目:
材料科学
出版日期:
2011-01-10

文章信息/Info

Title:
Preparation of Bi2Te3 thermoelectric thin films by ion beam sputtering
文章编号:
1000-2618(2011)01-0084-05
作者:
范平 郑壮豪 梁广兴 张东平 蔡兴民
深圳大学物理科学与技术学院,薄膜物理与应用研究所,深圳市传感器技术重点实验室,深圳 518060
Author(s):
FAN PingZHENG Zhuang-haoLIANG Guang-xingZHANG Dong-pingand CAI Xing-min
College of Physical Science and Technology,Institute of Thin Film Physics and Applications,Shenzhen key laboratory of sensor technology,Shenzhen University,Shenzhen 518060,P.R.China
关键词:
凝聚态物理离子束溅射Bi2Te3薄膜热电材料晶体结构电学性能热处理
Keywords:
condensed matter physicsion beam sputteringBi2Te3 thin filmsthermoelectric materialcrystal structureelectric propertiesheat treatment
分类号:
TN 304 ; O 469
文献标志码:
A
摘要:
采用离子束溅射技术,溅射不同面积比例的Bi/Te二元复合靶,制备Bi2Te3热电薄膜,所制备的薄膜Bi∶Te原子比接近2∶3.X射线衍射测量结果显示,薄膜的主要衍射峰与Bi2Te3标准衍射峰相同,在(015)晶面上择优选向明显,存在少量的Bi和[Bi,Te]杂质峰.霍尔系数测试及Seebeck系数测量结果表明,薄膜都为n型半导体薄膜,电导率量级为105 Sm-1,电学性能良好.在不同条件下制备的薄膜Seebeck系数最大值为-168 μVK-1,最小值为-32 μVK-1.其中,Bi∶Te 原子比为0.69,退火温度为300 ℃的薄膜功率因子最大,达1.1×10-3 Wm-1K-2
Abstract:
The Bi2Te3 thin films were prepared by ion beam sputtering from a Bi/Te fan-shaped compound target. The stoichiometries of all the samples approach the ratio of 2∶3. The XRD results indicate that the major diffraction peaks of the film match with those of Bi2Te3. The film growth exhibits preferred orientation at(015) phase and several Bi,[Bi,Te]impurity peaks are observed. Hall and Seebeck coefficient measurement reveals that all the samples are n-type with conductivity of 105 Sm-1. This confirms that the samples have nice thermoelectrically properties. The samples seebeck coefficients,with maximum of -168 μVK-1 and minimum of -32 μVK-1,are obtained from various preparation conditions. Among them,the sample annealed at 300 ℃ with stoichiometry of 0.69 has the highest Power Factor of 1.1×10-3 Wm-1K-2.

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备注/Memo

备注/Memo:
收稿日期:2010-01-18;修回日期:2010-10-26
基金项目:广东省自然科学基金资助项目(7009409)
作者简介:范平(1963-),男(汉族),福建省永定县人,深圳大学教授. E-mail:fanping@szu.edu.cn
更新日期/Last Update: 2011-01-13