Please wait a minute...
Chin. Phys. B, 2009, Vol. 18(7): 3084-3089    DOI: 10.1088/1674-1056/18/7/079
CROSS DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY Prev   Next  

Synthesis and high temperature thermoelectric transport properties of Si-based type-I clathrates

Deng Shu-Kang(邓书康)a)b)†, Tang Xin-Feng(唐新峰)b), and Tang Run-Sheng(唐润生)a)
a Education Ministry Key Laboratory of Renewable Energy Advanced Materials and Manufacturing Technology; Yunnan Normal University, Kunming 650092, China; b State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
Abstract  N-type Si-based type-I clathrates with different Ga content were synthesized by combining the solid-state reaction method, melting method and spark plasma sintering (SPS) method. The effects of Ga composition on high temperature thermoelectric transport properties were investigated. The results show that at room temperature, the carrier concentration decreases, while the carrier mobility increases slightly with increasing Ga content. The Seebeck coefficient increases with increasing Ga content. Among all the samples, Ba7.93Ga17.13Si28.72 exhibits higher Seebeck coefficient than the others and reaches -135 μV$\cdot$K-1 at 1000 K. The sample prepared by this method exhibits very high electrical conductivity, and reaches 1.95×105S$\cdot$m-1 for Ba8.01Ga16.61Si28.93 at room temperature. The thermal conductivity of all samples is almost temperature independent in the temperature range of 300--1000 K, indicating the behaviour of a typical metal. The maximum ZT value of 0.75 is obtained at 1000 K for the compound Ba7.93Ga17.13Si28.72.
Keywords:  type-I clathrate      thermoelectric materials      synthesis  
Received:  05 September 2008      Revised:  20 November 2008      Accepted manuscript online: 
PACS:  81.05.Bx (Metals, semimetals, and alloys)  
  81.20.Ev (Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation)  
  72.15.Jf (Thermoelectric and thermomagnetic effects)  
  72.15.Eb (Electrical and thermal conduction in crystalline metals and alloys)  
Fund: Project supported by the National Basic Research Program of China (Grant Nos 2007CB607501 and 2007CB607503) and Yunnan Natural Science Fund (Grant No 2008CD114).

Cite this article: 

Deng Shu-Kang(邓书康), Tang Xin-Feng(唐新峰), and Tang Run-Sheng(唐润生) Synthesis and high temperature thermoelectric transport properties of Si-based type-I clathrates 2009 Chin. Phys. B 18 3084

[1] Prediction of lattice thermal conductivity with two-stage interpretable machine learning
Jinlong Hu(胡锦龙), Yuting Zuo(左钰婷), Yuzhou Hao(郝昱州), Guoyu Shu(舒国钰), Yang Wang(王洋), Minxuan Feng(冯敏轩), Xuejie Li(李雪洁), Xiaoying Wang(王晓莹), Jun Sun(孙军), Xiangdong Ding(丁向东), Zhibin Gao(高志斌), Guimei Zhu(朱桂妹), Baowen Li(李保文). Chin. Phys. B, 2023, 32(4): 046301.
[2] A new transition metal diphosphide α-MoP2 synthesized by a high-temperature and high-pressure technique
Xiaolei Liu(刘晓磊), Zhenhai Yu(于振海), Jianfu Li(李建福), Zhenzhen Xu(徐真真), Chunyin Zhou(周春银), Zhaohui Dong(董朝辉), Lili Zhang(张丽丽), Xia Wang(王霞), Na Yu(余娜), Zhiqiang Zou(邹志强),Xiaoli Wang(王晓丽), and Yanfeng Guo(郭艳峰). Chin. Phys. B, 2023, 32(1): 018102.
[3] Slight Co-doping tuned magnetic and electric properties on cubic BaFeO3 single crystal
Shijun Qin(覃湜俊), Bowen Zhou(周博文), Zhehong Liu(刘哲宏), Xubin Ye(叶旭斌), Xueqiang Zhang(张雪强), Zhao Pan(潘昭), and Youwen Long(龙有文). Chin. Phys. B, 2022, 31(9): 097503.
[4] Liquid-phase synthesis of Li2S and Li3PS4 with lithium-based organic solutions
Jieru Xu(许洁茹), Qiuchen Wang(王秋辰), Wenlin Yan(闫汶琳), Liquan Chen(陈立泉), Hong Li(李泓), and Fan Wu(吴凡). Chin. Phys. B, 2022, 31(9): 098203.
[5] Thermoelectric performance of XI2 (X = Ge, Sn, Pb) bilayers
Nan Lu(陆楠) and Jie Guan(管杰). Chin. Phys. B, 2022, 31(4): 047201.
[6] Research status and performance optimization of medium-temperature thermoelectric material SnTe
Pan-Pan Peng(彭盼盼), Chao Wang(王超), Lan-Wei Li(李岚伟), Shu-Yao Li(李淑瑶), and Yan-Qun Chen(陈艳群). Chin. Phys. B, 2022, 31(4): 047307.
[7] Copper ion beam emission in solid electrolyte Rb4Cu16I6.5Cl13.5
Tushagu Abudouwufu(吐沙姑·阿不都吾甫), Xiangyu Zhang (张翔宇), Wenbin Zuo (左文彬), Jinbao Luo(罗进宝), Yueqiang Lan(兰越强), Canxin Tian (田灿鑫), Changwei Zou(邹长伟), Alexander Tolstoguzov, and Dejun Fu(付德君). Chin. Phys. B, 2022, 31(4): 040704.
[8] Recent advances in organic, inorganic, and hybrid thermoelectric aerogels
Lirong Liang(梁丽荣), Xiaodong Wang(王晓东), Zhuoxin Liu(刘卓鑫), Guoxing Sun(孙国星), and Guangming Chen(陈光明). Chin. Phys. B, 2022, 31(2): 027903.
[9] On-surface synthesis of one-dimensional carbyne-like nanostructures with sp-carbon
Wenze Gao(高文泽), Chi Zhang(张弛), Zheng Zhou(周正), and Wei Xu(许维). Chin. Phys. B, 2022, 31(12): 128101.
[10] Fabrication of sulfur-doped cove-edged graphene nanoribbons on Au(111)
Huan Yang(杨欢), Yixuan Gao(高艺璇), Wenhui Niu(牛雯慧), Xiao Chang(常霄), Li Huang(黄立), Junzhi Liu(刘俊治), Yiyong Mai(麦亦勇), Xinliang Feng(冯新亮), Shixuan Du(杜世萱), and Hong-Jun Gao(高鸿钧). Chin. Phys. B, 2021, 30(7): 077306.
[11] Substitution effect on the superconductivity in Mo3-xRexAl2C with β-Mn structure prepared by microwave method
Jun-Nan Sun(孙俊男), Bin-Bin Ruan(阮彬彬), Meng-Hu Zhou(周孟虎), Yin Chen(陈银), Qing-Song Yang(杨清松), Lei Shan(单磊), Ming-Wei Ma(马明伟), Gen-Fu Chen(陈根富), and Zhi-An Ren(任治安). Chin. Phys. B, 2021, 30(7): 077401.
[12] NBN-doped nanographene embedded with five- and seven-membered rings on Au(111) surface
Huan Yang(杨欢), Yun Cao(曹云), Yixuan Gao(高艺璇), Yubin Fu(付钰彬), Li Huang(黄立), Junzhi Liu(刘俊治), Xinliang Feng(冯新亮), Shixuan Du(杜世萱), and Hong-Jun Gao(高鸿钧). Chin. Phys. B, 2021, 30(5): 056802.
[13] Critical behavior and effect of Sr substitution in double perovskite Ca2CrSbO6
Yuan-Yuan Jiao(焦媛媛), Jian-Ping Sun(孙建平), and Qi Cui(崔琦). Chin. Phys. B, 2021, 30(3): 037501.
[14] Doping effect on the structure and physical properties of quasi-one-dimensional compounds Ba9Co3(Se1-xSx)15 (x = 0-0.2)
Lei Duan(段磊), Xian-Cheng Wang(望贤成), Jun Zhang(张俊), Jian-Fa Zhao(赵建发), Wen-Min Li(李文敏), Li-Peng Cao(曹立朋), Zhi-Wei Zhao(赵志伟), Changjiang Xiao(肖长江), Ying Ren(任瑛), Shun Wang(王顺), Jinlong Zhu(朱金龙), and Chang-Qing Jin(靳常青). Chin. Phys. B, 2021, 30(10): 106101.
[15] Controlling the light wavefront through a scattering medium based on direct digital frequency synthesis technology
Yuan Yuan(袁园), Min-Yuan Sun(孙敏远), Yong Bi(毕勇), Wei-Nan Gao(高伟男), Shuo Zhang(张硕), and Wen-Ping Zhang(张文平). Chin. Phys. B, 2021, 30(1): 014209.
No Suggested Reading articles found!