| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Complex alloying effect on thermoelectric transport properties of Cu2Ge(Se1-xTex)3 |
| Ruifeng Wang(王瑞峰)1,3, Lu Dai(戴璐)1,3, Yanci Yan(闫艳慈)1,2, Kunling Peng(彭坤岭)1,2, Xu Lu(卢旭)2, Xiaoyuan Zhou(周小元)2, Guoyu Wang(王国玉)1,3 |
1 Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China;
2 College of Physics, Chongqing University, Chongqing 401331, China;
3 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract To enhance the thermoelectric performance of Cu2GeSe3, a series of Te-alloyed samples Cu2Ge(Se1-xTex)3 are synthesized and investigated in this work. It is found that the lattice thermal conductivity is reduced drastically for x=0.1 sample, which may be attributed to the point defects introduced by alloying. However, for samples with x ≥ 0.2, the lattice thermal conductivity increases with increasing x, which is related to a less distorted structure. The structure evolution, together with the change in carrier concentration, also leads to a systemically change in electrical properties. Finally, a zT of 0.55@750 K is obtained for the sample with x=0.3, about 62% higher than that for the pristine sample.
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Received: 05 March 2018
Revised: 03 April 2018
Accepted manuscript online:
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PACS:
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72.15.Jf
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(Thermoelectric and thermomagnetic effects)
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61.66.Dk
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(Alloys )
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72.20.Pa
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(Thermoelectric and thermomagnetic effects)
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66.70.Df
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(Metals, alloys, and semiconductors)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos.51672270,11674040,and 11404044),the Key Research Program of Frontier Sciences,Chinese Academy of Sciences (Grant No.QYZDB-SSW-SLH016),and the Project for Fundamental and Frontier Research in Chongqing City (Grant No.CSTC2015JCYJBX0026). |
Corresponding Authors:
Guoyu Wang
E-mail: guoyuw@cigit.ac.cn
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Cite this article:
Ruifeng Wang(王瑞峰), Lu Dai(戴璐), Yanci Yan(闫艳慈), Kunling Peng(彭坤岭), Xu Lu(卢旭), Xiaoyuan Zhou(周小元), Guoyu Wang(王国玉) Complex alloying effect on thermoelectric transport properties of Cu2Ge(Se1-xTex)3 2018 Chin. Phys. B 27 067201
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| [1] |
Snyder G J and Toberer E S 2008 Nat. Mater. 7 105
|
| [2] |
Bell L E 2008 Science 321 1457
|
| [3] |
Kraemer D, Jie Q, McEnaney K, Cao F, Liu W, Weinstein L A, Loomis J, Ren Z and Chen G 2016 Nat. Energy 1 16153
|
| [4] |
Yang J and Caillat T 2006 MRS Bull. 31 224
|
| [5] |
Pei Y, Shi X, LaLonde A, Wang H, Chen L and Snyder G J 2011 Nature 473 66
|
| [6] |
Zhao L D, Tan G, Hao S, He J, Pei Y, Chi H, Wang H, Gong S, Xu H, Dravid V P, Uher C, Snyder G J, Wolverton C and Kanatzidis M G 2016 Science 351 141
|
| [7] |
Skoug E J, Cain J D and Morelli D T 2010 J. Alloys Compd. 506 18
|
| [8] |
Hsu K F, Loo S, Guo F, Chen W, Dyck J S, Uher C, Hogan T, Polychroniadis E K and Kanatzidis M G 2004 Science 303 818
|
| [9] |
Biswas K, He J, Zhang Q, Wang G, Uher C, Dravid V P and Kanatzidis M G 2011 Nat. Chem. 3 160
|
| [10] |
Heremans J P, Dresselhaus M S, Bell L E and Morelli D T 2013 Nat. Nanotechnol. 8 471
|
| [11] |
Nolas G S, Slack G A, Chand J L and Schujman B 1998 IEEE. 294
|
| [12] |
Nolas G S 1998 Mrs Proc. 545 435
|
| [13] |
Sales B C, Mandrus D and Williams R K 1996 Science 272 1325
|
| [14] |
Liu H, Shi X, Xu F, Zhang L, Zhang W, Chen L, Li Q, Uher C, Day T and Snyder G J 2012 Nat. Mater. 11 422
|
| [15] |
Chen Q, Wang G, Zhang A, Yang D, Yao W, Peng K, Yan Y, Sun X, Liu A, Wang G and Zhou X 2015 J. Mater. Chem. C 3 12273
|
| [16] |
Luo P, You L, Yang J, Xing J, Zhang J, Wang C, Zhao X, Luo J and Zhang W 2017 Chin. Phys. B 26 097201
|
| [17] |
Xue L, Xu B and Lin Y 2014 Chin. Phys. B 23 037103
|
| [18] |
Liu R, Xi L, Liu H, Shi X, Zhang W and Chen L 2012 Chem. Commun. 48 3818
|
| [19] |
Plirdpring T, Kurosaki K, Kosuga A, Day T, Firdosy S, Ravi V, Snyder G J, Harnwunggmoung A, Sugahara T, Ohishi Y, Muta H and Yamanaka S 2012 Adv. Mater. 24 3622
|
| [20] |
Liu M L, Chen I W, Huang F Q and Chen L D 2009 Adv. Mater. 21 3808
|
| [21] |
Shi X, Xi L, Fan J, Zhang W and Chen L 2010 Chem. Mater. 22 6029
|
| [22] |
Shao H, Zhang H, Peng B, Tan X, Liu G Q, Jiang J and Jiang H 2016 Europhys. Lett. 115 26002
|
| [23] |
Shao H, Tan X, Hu T, Liu G Q, Jiang J and Jiang H 2015 Europhys. Lett. 109 47004
|
| [24] |
Marcano G and Nieves L 2000 J. Appl. Phys. 87 1284
|
| [25] |
Cho J Y, Shi X, Salvador J R, Meisner G P, Yang J, Wang H, Wereszczak A A, Zhou X and Uher C 2011 Phys. Rev. B 84 085207
|
| [26] |
Zhao D, Ning J, Li S and Zuo M 2016 J. Nanomater. 2016 5923975
|
| [27] |
Huang T, Yan Y, Peng K, Tang X, Guo L, Wang R, Lu X, Zhou X and Wang G 2017 J. Alloys Compd. 723 708
|
| [28] |
Cho J Y, Shi X, Salvador J R, Yang J and Wang H 2010 J. Appl. Phys. 108 073713
|
| [29] |
Chetty R, Prem Kumar D S, Falmbigl M, Rogl P, You S W, Kim I H and Mallik R C 2014 Intermetallics 54 1
|
| [30] |
Li Y, Liu G, Cao T, Liu L, Li J, Chen K, Li L, Han Y and Zhou M 2016 Adv. Funct. Mater. 26 6025
|
| [31] |
Ong K P, Singh D J and Wu P 2011 Phys. Rev. B 83 115110
|
| [32] |
Wu W, Wu K, Ma Z and Sa R 2012 Chem. Phys. Lett. 537 62
|
| [33] |
Fan J, Liu H, Shi X, Bai S, Shi X and Chen L 2013 Acta Mater. 61 4297
|
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