Thermoelectric properties of La-doped BaSi2

被引：10

作者：

Hashimoto, Kohsuke ^{[1
]}

Kurosaki, Ken ^{[1
]}

Muta, Hiroaki ^{[1
]}

Yamanaka, Shinsuke ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Div Sustainable Energy & Environm Engn, Suita, Osaka 5650871, Japan

来源：

MATERIALS TRANSACTIONS | 2008年 / 49卷 / 08期

关键词：

BaSi2; thermoelectrics; thermal conductivity; electrical resistivity; Seebeck coefficient;

D O I：

10.2320/matertrans.E-MRA2008818

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The authors tried to enhance the thermoelectric figure of merit of BaSi2 by doping La. Polycrystalline samples of La-doped BaSi2: Ba1-xLaxSi2 (0 <= x <= 0.08) were prepared and characterized. The effect of La-doping was investigated by measuring the thermoelectric properties above room temperature to 973 K. La could dissolve in BaSi2 up to around x = 0.03, while LaSi2 appeared as the second phase in the higher x range. Both the electrical resistivity and thermal conductivity of the La-doped samples were lower than those of the non-doped Bask. Ba1-xLaxSi2 (x = 0.02) indicated the largest power factor and dimensionless figure of merit (ZT). The ZT value was 0.07 at 970 K, which was approximately 7 times larger than that of non-doped BaSi2.

引用

页码：1737 / 1740

页数：4

共 50 条

[21] High-temperature Electric Properties of Polycrystalline La-doped CaMnO3 Ceramics [J].

Lan, Jinle ;

Lin, Yuanhua ;

Mei, Ao ;

Nan, Cewen ;

Liu, Yong ;

Zhang, Boping ;

Li, Jingfeng .

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2009, 25 (04) :535-538

[22] Thermoelectric properties of Yb-La-Nb-doped SrTiO3 [J].

Zhang, Lei ;

Cao, Zheng ;

Fu, Qing-Qiao ;

Li, Chun-Yu ;

Du, Ya-Qian ;

Li, Yan-Nan ;

La, Ta ;

Zhang, Dai-Bing ;

Wang, Jun .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2024, 44 (03) :1647-1653

[23] Structural and thermoelectric properties of pure and La, Y doped HoMnO3 for their use as alternative energy materials [J].

Khan, Banaras ;

Aliabad, H. A. Rahnamaye ;

Razghandi, N. ;

Maqbool, M. ;

Asadabadi, S. Jalali ;

Ahmad, Iftikhar .

COMPUTER PHYSICS COMMUNICATIONS, 2015, 187 :1-7

[24] Thermoelectric properties of phosphorus-doped indium tellurosilicate: InSiTe3 [J].

Suriwong, Tawat ;

Kurosaki, Ken ;

Thongtem, Somchai .

JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 735 :75-80

[25] Preparation and Thermoelectric Properties of Pb1–xFexTe Alloys Doped with Iodine [J].

X. L. Cao ;

W. Cai ;

H. D. Deng ;

R. L. Gao ;

C. L. Fu ;

F. S. Pan .

Journal of Electronic Materials, 2017, 46 :2645-2651

[26] Structural Phase Transition and Related Thermoelectric Properties in Sn Doped AgBiSe2 [J].

Liu, Xiao-Cun ;

Pan, Ming-Yan .

CRYSTALS, 2021, 11 (09)

[27] Thermoelectric properties of lanthanum-doped europium titanate [J].

Muta, H ;

Ieda, A ;

Kurosaki, K ;

Yamanaka, S .

MATERIALS TRANSACTIONS, 2005, 46 (07) :1466-1469

[28] Structure and Thermoelectric Properties of β-FeSi2 Doped with Cobalt [J].

Solomkin, F. Yu. ;

Sharenkova, N. V. ;

Isachenko, G. N. ;

Samunin, A. Yu. ;

Shabaldin, A. A. ;

Kulik, I. A. ;

Archarova, N. A. ;

Lukasov, M. S. .

JOURNAL OF SURFACE INVESTIGATION, 2024, 18 (04) :812-816

[29] Thermoelectric Properties of Co-Doped TiS2 [J].

J. Zhang ;

X. Y. Qin ;

H. X. Xin ;

D. Li ;

C. J. Song .

Journal of Electronic Materials, 2011, 40 :980-986

[30] Thermoelectric properties of Ni-doped CuAlO2 [J].

Wongcharoen, Ngamnit ;

Gaewdang, Thitinai .

FRONTIER RESEARCH IN NANOSCALE SCIENCE AND TECHNOLOGY, 2009, 2 (01) :101-106

← 1 2 3 4 5 →