Growth and characterization of large size undoped p-type SnSe single crystal by Horizontal Bridgman method

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	Growth and characterization of large size undoped p-type SnSe single crystal by Horizontal Bridgman method
	Jin, Min; Shao, Hezhu; Hu, Haoyang; Li, Debo; Shen, Hui; Xu, Jiayue; Jiang, Jun
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2017
卷号	712 页码:857-862
ISSN号	0925-8388
英文摘要	A Horizontal Bridgman (HB) method was employed attempt to grow large size undoped SnSe single crystal. SnSe was crystallized under 2-3 degrees C/cm temperature gradient and cooled to room temperature at a rate of similar to 25 degrees C/h to release thermal stress. SnSe crystals grown from liquid solution and volatilized vapor were obtained simultaneously. Two single crystals with size about 30 x 20 x 15 mm(3) and 35 x 15 x 15 mm(3) were peeled off from the liquid growth SnSe, which were reported to be the largest so far. The as-grown SnSe single crystal had standard orthorhombic Pnma space group at room temperature. Stoichiometry ratio of the crystal was measured Sn: Se = 1:1. The density of as-grown crystal is similar to 6.16 g/ cm(3), which is very close to 100% of the theoretical value of SnSe. The obtained SnSe single crystal displayed p-type character with a carrier density of 5.1 x 10(17) cm(-3) at room temperature. Thermoelectric properties in directions parallel and perpendicular to cleavage be plane were analyzed, the maximum thermoelectric figure of merit ZT were ZT(\|\|bc), = 1.1 and ZT(perpendicular to bc) = 0.24 near Pnma-Cmcm phase transition temperature. (C) 2017 Elsevier B.V. All rights reserved.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13720]
专题	2017专题
推荐引用方式 GB/T 7714	Jin, Min,Shao, Hezhu,Hu, Haoyang,et al. Growth and characterization of large size undoped p-type SnSe single crystal by Horizontal Bridgman method[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,712:857-862.
APA	Jin, Min.,Shao, Hezhu.,Hu, Haoyang.,Li, Debo.,Shen, Hui.,...&Jiang, Jun.(2017).Growth and characterization of large size undoped p-type SnSe single crystal by Horizontal Bridgman method.JOURNAL OF ALLOYS AND COMPOUNDS,712,857-862.
MLA	Jin, Min,et al."Growth and characterization of large size undoped p-type SnSe single crystal by Horizontal Bridgman method".JOURNAL OF ALLOYS AND COMPOUNDS 712(2017):857-862.