Structure and thermoelectric properties of 2D Cr2Se3−3xS3x solid solutions
作者： Tingting Zhang , Xianli Su , Yonggao Yan , Wei Liu , Yonghui You
DOI: 10.1039/C7TC04749E
关键词:
摘要: Chromium selenide (Cr2Se3), consisting of earth-abundant elements, is a new cost-efficient thermoelectric material. In this study, series Cr2Se3−3xS3x (x = 0–0.1) solid solutions was synthesized by solid-state reaction combined with the spark plasma sintering (SPS) process. The correlation between sulphur substituted on selenium sites, structure, and properties systematically investigated. solubility limit S in about 10%. Through substitutions, band gap has been widened, Seebeck coefficient effectively increased, lattice thermal conductivity substantially decreased. Mainly due to remarkable decrease conductivity, ZT values have increased. maximum value 0.29 achieved at 623 K for Cr2Se2.7S0.3 compound, which 32% higher than pure Cr2Se3.
rsc.org
sci-hub.se 参考文章(40)
Wei-Shu Liu, Bo-Ping Zhang, Jing-Feng Li, Hai-Long Zhang, Li-Dong Zhao, Enhanced thermoelectric properties in CoSb3-xTex alloys prepared by mechanical alloying and spark plasma sintering Journal of Applied Physics. ,vol. 102, pp. 103717- ,(2007) , 10.1063/1.2815671
X. Wang, S., Yang, J., Toll, T., Yang, J., Zhang, W., & Tang, Conductivity-limiting bipolar thermal conductivity in semiconductors. Scientific Reports. ,vol. 5, pp. 10136- 10136 ,(2015) , 10.1038/SREP10136
David Michael Rowe, CRC Handbook of Thermoelectrics CRC Press. ,(1995) , 10.1201/9781420049718
Yoshiya Adachi, Masayoshi Ohashi, Takejiro Kaneko, Motoyoshi Yuzuri, Yasuo Yamaguchi, Satoru Funahashi, Yukio Morii, Magnetic Structure of Rhombohedral Cr2Se3. Journal of the Physical Society of Japan. ,vol. 63, pp. 1548- 1559 ,(1994) , 10.1143/JPSJ.63.1548
Mercouri G. Kanatzidis, Chapter 3 The role of solid-state chemistry in the discovery of new thermoelectric materials Semiconductors and Semimetals. ,vol. 69, pp. 51- 100 ,(2001) , 10.1016/S0080-8784(01)80149-6
G.S. Nolas, H.J. Goldsmid, J Sharp, Thermoelectrics: Basic Principles and New Materials Developments ,(2001)
Li-Dong Zhao, Shih-Han Lo, Yongsheng Zhang, Hui Sun, Gangjian Tan, Ctirad Uher, C. Wolverton, Vinayak P. Dravid, Mercouri G. Kanatzidis, Ultralow thermal conductivity and high thermoelectric figure of merit in SnSe crystals Nature. ,vol. 508, pp. 373- 377 ,(2014) , 10.1038/NATURE13184
J Zhang, HJ Liu, L Cheng, J Wei, J Shi, XF Tang, C Uher, None, Enhanced thermoelectric performance of a quintuple layer of Bi2Te3 Journal of Applied Physics. ,vol. 116, pp. 023706- ,(2014) , 10.1063/1.4889921
J. Yang, G. P. Meisner, L. Chen, Strain field fluctuation effects on lattice thermal conductivity of ZrNiSn-based thermoelectric compounds Applied Physics Letters. ,vol. 85, pp. 1140- 1142 ,(2004) , 10.1063/1.1783022
Glen A. Slack, Effect of Isotopes on Low-Temperature Thermal Conductivity Physical Review. ,vol. 105, pp. 829- 831 ,(1957) , 10.1103/PHYSREV.105.829