Effects of Mn substitution on thermoelectric properties of CuIn1-xMnxTe2

被引：11

作者：

Luo, Pengfei ^{[1
,2
]}

You, Li ^{[3
]}

Yang, Jiong ^{[2
]}

Xing, Juanjuan ^{[3
]}

Zhang, Jiye ^{[3
]}

Wang, Chenyang ^{[3
]}

Zhao, Xinluo ^{[1
]}

Luo, Jun ^{[3
]}

Zhang, Wenqing ^{[2
,3
]}

机构：

[1] Shanghai Univ, Inst Low Dimens Carbons & Device Phys, Dept Phys, Shanghai 200444, Peoples R China

[2] Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China

[3] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China

来源：

CHINESE PHYSICS B | 2017年 / 26卷 / 09期

基金：

中国国家自然科学基金;

关键词：

thermoelectrics; chalcopyrite; CuInTe2; Mn doping; PERFORMANCE; CUINTE2;

D O I：

10.1088/1674-1056/26/9/097201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

CuIn1-xMnxTe2 samples have been synthesized by a melt-annealing method. The x-ray powder diffraction (XRD) analysis shows that the CuIn1-xMnxTe2 samples crystallize in the chalcopyrite phase. Mn doping can effectively optimize the electrical properties and accordingly improve the power factor. The room temperature electrical conductivity of doped CuInTe2 increases by several orders of magnitude due to substituting In with Mn. In addition, a large reduction in thermal conductivity is achieved through the enhanced phonon scattering via Mn-related point defects and precipitates. Therefore, an enhanced average ZT value up to 0.34 is achieved for sample CuIn0.925Mn0.075Te2, which is 41% higher than that of the pristine CuInTe2.

引用

页数：5

共 19 条

[1] High-performance bulk thermoelectrics with all-scale hierarchical architectures
Biswas, Kanishka
He, Jiaqing
Blum, Ivan D.
Wu, Chun-I
Hogan, Timothy P.
Seidman, David N.
Dravid, Vinayak P.
Kanatzidis, Mercouri G.
[J]. NATURE, 2012, 489 (7416) : 414 - 418
[2] Improved thermoelectric performance in p-type Bi0.48Sb1.52Te3 bulk material by adding MnSb2Se4
Cao, Binglei
Jian, Jikang
Ge, Binghui
Li, Shanming
Wang, Hao
Liu, Jiao
Zhao, Huaizhou
[J]. CHINESE PHYSICS B, 2017, 26 (01)
[3] Influence of doping and solid solution formation on the thermoelectric properties of chalcopyrite semiconductors
Carr, Winston D.
Morelli, Donald T.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 630 : 277 - 281
[4] Enhanced thermoelectric performance in Cd doped CuInTe2 compounds
Cheng, N.
Liu, R.
Bai, S.
Shi, X.
Chen, L.
[J]. JOURNAL OF APPLIED PHYSICS, 2014, 115 (16)
[5] Goldsmid H J, 2010, INTRO THERMOELECTRIC, P37
[6] Hu C, 2015, MAT RES SOC S P, V1735
[7] High-temperature thermoelectric properties of Cu1-xInTe2 with a chalcopyrite structure
Kosuga, Atsuko
Plirdpring, Theerayuth
Higashine, Ryosuke
Matsuzawa, Mie
Kurosaki, Ken
Yamanaka, Shinsuke
[J]. APPLIED PHYSICS LETTERS, 2012, 100 (04)
[8] High-temperature thermoelectric properties of Hg-doped CuInTe2
Kucek, V.
Drasar, C.
Kasparova, J.
Plechacek, T.
Navratil, J.
Vlcek, M.
Benes, L.
[J]. JOURNAL OF APPLIED PHYSICS, 2015, 118 (12)
[9] Liu HL, 2012, NAT MATER, V11, P422, DOI [10.1038/NMAT3273, 10.1038/nmat3273]
[10] Ternary compound CuInTe2: a promising thermoelectric material with diamond-like structure
Liu, Ruiheng
Xi, Lili
Liu, Huili
Shi, Xun
Zhang, Wenqing
Chen, Lidong
[J]. CHEMICAL COMMUNICATIONS, 2012, 48 (32) : 3818 - 3820

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