Phase transition and high temperature thermoelectric properties of copper selenide Cu2-xSe (0 ≤ x ≤ 0.25)

doi:10.1088/1674-1056/20/8/087201

Abstract With good electrical properties and an inherently complex crystal structure, Cu$_{2 - x}$Se is a potential ``phonon glass electron crystal'' thermoelectric material that has previously not attracted much interest. In this study, Cu$_{2 - x}$Se ($0 \le x \le 0.25$) compounds were synthesized by a melting-quenching method, and then sintered by spark plasma sintering to obtain bulk material. The effect of Cu content on the phase transition and thermoelectric properties of Cu$_{2 - x}$Se were investigated in the temperature range of 300~K--750~K. The results of X-ray diffraction at room temperature show that Cu$_{2 - x}$Se compounds possess a cubic structure with a space group of $Fm3m$ (#225) when $0.15 < x \le 0.25$, whereas they adopt a composite of monoclinic and cubic phases when $0 \le x \le 0.15$. The thermoelectric property measurements show that with increasing Cu content, the electrical conductivity decreases, the Seebeck coefficient increases and the thermal conductivity decreases. Due to the relatively good power factor and low thermal conductivity, the nearly stoichiometric Cu$_{2}$Se compound achieves the highest $ZT$ of 0.38 at 750 K. It is expected that the thermoelectric performance can be further optimized by doping appropriate elements and/or via a nanostructuring approach.

Keywords: copper selenide phase transition thermoelectric properties

Received: 17 February 2011
Revised: 21 March 2011
Accepted manuscript online:

PACS:	72.15.Jf	(Thermoelectric and thermomagnetic effects)
	74.25.fc	(Electric and thermal conductivity)

Fund: Project supported by the National Basic Research Program of China (Grant No. 2007CB607501) and the National Natural Science Foundation of China (Grant Nos. 50731006 and 50672118) along with 111 Project (Grant No. B07040).

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Xiao Xing-Xing(肖星星), Xie Wen-Jie(谢文杰), Tang Xin-Feng(唐新峰), and Zhang Qing-Jie(张清杰) Phase transition and high temperature thermoelectric properties of copper selenide Cu_2-xSe (0 ≤ x ≤ 0.25) 2011 Chin. Phys. B 20 087201

[1]	Tritt T M, Bottner H and Chen L D 2008 MRS Bull. 33 366
[2]	Deng S K, Tang X F and Tang R S 2009 Chin. Phys. B 18 3084
[3]	Xie W J, Tang X F and Zhang Q J 2007 Chin. Phys. 16 3549
[4]	Liu W S, Zhang B P, Li J F and Liu J 2006 Acta Phys. Sin. 55 645 (in Chinese)
[5]	Shi X, Chen L D, Bai S Q and Tang X F 2004 Acta Phys. Sin. 53 1469 (in Chinese)
[6]	Haynes W M 2006 CRC Handbook of Chemistry and Physics 87th edn. (Boca Raton: Taylor & Francis)
[7]	Vaqueiro P and Powell A V 2010 J. Mater. Chem. 20 9577
[8]	Hergert F, Jost S, Hock R and Purwins M 2006 J. Solid State Chem. 179 2394
[9]	Glazov V M, Pashinkin A S and Fedorov V A 2000 Inorg. Mater. 36 775
[10]	Chakrabarti D I and Laughlin D E 1981 Bull. Alloy Phase Diagrams 2 305
[11]	Ohtani T and Shohno M 2004 J. Solid State Chem. 177 3886
[12]	Abdullaev G B, Aliyarova Z A and Asadov G A 1967 Phys. Stat. 21 461
[13]	Ishikawa T and Miyatani S 1977 J. Phys. Soc. Jpn. 42 159
[14]	Akkad F El, Mansour B and Hendeya T 1981 Mater. Res. Bull. 16 535
[15]	Danilkin S A 2009 J. Alloys Compd. 467 509
[16]	Skomorokhov A N, Trots D M, Knapp M, Bickulova N N and Fuess H 2006 J. Alloys Compd. 421 64
[17]	Ohtani T, Tachibana Y, Ogura J, Miyake T, Okada Y and Yokota Y 1998 J. Alloys Compd. 279 136
[18]	Machado K D, deLime J C, Grandi T A, Campos C E M, Maurmann C E, Gasperini A A M, Souza S M and Pimenta A F 2004 Acta Cryst. B 60 282
[19]	Junod P 1959 Helv. Phys. Acta 32 567
[20]	Okamoto K 1971 Jpn. J. Appl. Phys. 10 508
[21]	Wu T, Jiang W, Li X Y, Zhou Y F and Chen L D 2007 J. Appl. Phys. 102 103705
[22]	Deng S K, Tang X F and Zhang Q J 2007 J. Appl. Phys. 102 043702
[23]	Deng S K, Tang X F and Zhang Q J 2008 J. Appl. Phys. 103 073503
[24]	Deng S K, Tang X F, Yang P Z and Li M 2009 J. Mater. Sci. 44 939
[25]	Vaqueiro P and Powell A V 2010 J. Mater. Chem. 20 9577
[26]	Tonejc A, Ogorelec Z and Mestnik B 1975 J. Appl. Cryst. 8 375
[27]	Mansour B A 1993 Phys. Stat. Sol. (a) 136 153
[28]	Yamamoto K and Kashida S 1991 J. Solid State Chem. 93 202
[29]	Oliveria M, McMullan R K and Wuensch B J 1988 Solid State Ionics 28—30 1332
[30]	Sakuma T, Aoyama T, Takahashi H, Shimojo Y and Morii Y 1989 Physica B 213—214 399
[31]	Danilkin S A, Skomorokhov A N, Hoser A, Fuess H, Rajevac V and Bickulova N N 2003 J. Alloys Compd. 361 57

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Phase transition and high temperature thermoelectric properties of copper selenide Cu2-xSe (0 ≤ x ≤ 0.25)

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Phase transition and high temperature thermoelectric properties of copper selenide Cu_2-xSe (0 ≤ x ≤ 0.25)