Temperature dependent thermal conductivity and transition mechanism in amorphous and crystalline Sb2Te3 thin films

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 高密度光存储技术实验室

	Temperature dependent thermal conductivity and transition mechanism in amorphous and crystalline Sb2Te3 thin films
	Li, Qisong; Wei, Jingsong; Sun, Hao; Zhang, Kui; Huang, Zhengxing; Zhang, Long
刊名	Sci Rep
	2017
卷号	7
通讯作者	weijingsong@siom.ac.cn ; huangzx@dlut.edu.cn ; lzhang@siom.ac.cn
英文摘要	Sb2Te3 thin films are widely used in high density optical and electronic storage, high-resolution greyscale image recording, and laser thermal lithography. Thermal conductivity and its temperature dependence are critical factors that affect the application performance of thin films. This work aims to evaluate the temperature dependence of thermal conductivity of crystalline and amorphous Sb2Te3 thin films experimentally and theoretically, and explores into the corresponding mechanism of heat transport. For crystalline Sb2Te3 thin films, the thermal conductivity was found to be 0.35 +/- 0.035 W m(-1) K-1 and showed weak temperature dependence. The thermal conductivity of amorphous Sb2Te3 thin films at temperatures below similar to 450 K is about 0.23 +/- 0.023 W m(-1)K(-1), mainly arising from the lattice as the electronic contribution is negligible; at temperatures above 450 K, the thermal conductivity experiences an abrupt increase owing to the structural change from amorphous to crystalline state. The work can provide an important guide and reference to the real applications of Sb2Te3 thin films.
收录类别	SCI
资助信息	National Natural Science Foundation of China [51672292, 61627826]
WOS记录号	WOS:000413400500022
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28259]
专题	上海光学精密机械研究所_高密度光存储技术实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Li, Qisong,Wei, Jingsong,Sun, Hao,et al. Temperature dependent thermal conductivity and transition mechanism in amorphous and crystalline Sb2Te3 thin films[J]. Sci Rep,2017,7.
APA	Li, Qisong,Wei, Jingsong,Sun, Hao,Zhang, Kui,Huang, Zhengxing,&Zhang, Long.(2017).Temperature dependent thermal conductivity and transition mechanism in amorphous and crystalline Sb2Te3 thin films.Sci Rep,7.
MLA	Li, Qisong,et al."Temperature dependent thermal conductivity and transition mechanism in amorphous and crystalline Sb2Te3 thin films".Sci Rep 7(2017).