Thermal conductivity of Bi2(SexTe1-x)3 alloy films grown by molecular beam epitaxy

被引：5

作者：

Yoo, Taehee ^{[1
]}

Lee, Eungkyu ^{[1
]}

Dong, Sining ^{[2
]}

Li, Xiang ^{[2
]}

Liu, Xinyu ^{[2
]}

Furdyna, Jacek K. ^{[2
]}

Dobrowolska, Margaret ^{[2
]}

Luo, Tengfei ^{[1
,3
]}

机构：

[1] Univ Notre Dame, Dept Aerosp & Mech Engn, Notre Dame, IN 46556 USA

[2] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[3] Univ Notre Dame, Ctr Sustainable Energy, Notre Dame, IN 46556 USA

来源：

APL MATERIALS | 2017年 / 5卷 / 06期

基金：

美国国家科学基金会;

关键词：

ENHANCED THERMOELECTRIC PROPERTIES; TOPOLOGICAL INSULATORS; SEMICONDUCTOR ALLOYS; BISMUTH TELLURIDE; CRYSTAL-STRUCTURE; BI2TE3; TRANSPORT; BI2SE3; INTERFACES; SELENIDE;

D O I：

10.1063/1.4984974

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We studied the thermal conductivity of Bi2Se3, Bi2Te3, and their alloy Bi-2(SexTe1-x)(3) at room temperature using time-domain thermoreflectance measurements. The Bi-2(SexTe1-x)(3) films with various concentrations of Se and Te prepared by molecular beam epitaxy on GaAs substrates were investigated to study the dependence of thermal conductivity on film composition. We observed that the Bi-2(SexTe1-x)(3) ternary alloys can have much lower thermal conductivity values compared to those of Bi2Se3 and Bi2Te3. These results may provide useful information for developing and engineering low thermal conductivity materials for thermoelectric applications. (C) 2017 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license.

引用

页数：7

共 50 条

[21] Optical And Thermoelectric Properties Of Nanocrystalline Bi2(Se1-xTex)3 Films
Adam, A. M.
Ibrahim, E. M. M.
Panina, L. V.
Petkov, P.
NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING, 2018, 22 (01) : 21 - 38
[22] Microstructure of epitaxial rutile TiO2 films grown by molecular beam epitaxy on r-plane Al2O3
Engel-Herbert, Roman
Jalan, Bharat
Cagnon, Joel
Stemmer, Susanne
JOURNAL OF CRYSTAL GROWTH, 2009, 312 (01) : 149 - 153
[23] Surface and interfacial structure of epitaxial SrTiO3 thin films on (001) Si grown by molecular beam epitaxy
Niu, F.
Wessels, B. W.
JOURNAL OF CRYSTAL GROWTH, 2007, 300 (02) : 509 - 518
[24] Structural and magnetic properties of hexagonal Cr1-δTe films grown on CdTe(001) by molecular beam epitaxy
Kanazawa, Ken
Yamawaki, Kazuma
Sekita, Naoya
Nishio, Yotaro
Kuroda, Shinji
Mitome, Masanori
Bando, Yoshio
JOURNAL OF CRYSTAL GROWTH, 2015, 415 : 31 - 35
[25] Crystalline Nanoscale M2O3 (M = Gd, Nd) Thin Films Grown by Molecular Beam Epitaxy on Si(111)
Wang, Jinxing
Liu, Tianmo
Wang, Zhongchang
MATERIALS TRANSACTIONS, 2009, 50 (08) : 2115 - 2117
[26] Thermal Conductivity Measurements of Aggregated (Bi1-x Sb x )2Te3 Nanoparticles Using 3ω Method
Nishino, Shunsuke
Koyano, Mikio
Ohdaira, Keisuke
JOURNAL OF ELECTRONIC MATERIALS, 2015, 44 (06) : 2034 - 2038
[27] Schottky barrier height of Ni to β-(AlxGa1-x) 2O3 with different compositions grown by plasma-assisted molecular beam epitaxy
Ahmadi, Elaheh
Oshima, Yuichi
Wu, Feng
Speck, James S.
SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2017, 32 (03)
[28] Electronic structure of CuCrO2 thin films grown on Al2O3(001) by oxygen plasma assisted molecular beam epitaxy
Shin, D.
Foord, J. S.
Egdell, R. G.
Walsh, A.
JOURNAL OF APPLIED PHYSICS, 2012, 112 (11)
[29] Two-step growth of high quality Bi2Te3 thin films on Al2O3 (0001) by molecular beam epitaxy
Harrison, S. E.
Li, S.
Huo, Y.
Zhou, B.
Chen, Y. L.
Harris, J. S.
APPLIED PHYSICS LETTERS, 2013, 102 (17)
[30] Thermal conductivity prediction and analysis of few-quintuple Bi2Te3 thin films: A molecular dynamics study
Qiu, Bo
Ruan, Xiulin
APPLIED PHYSICS LETTERS, 2010, 97 (18)

← 1 2 3 4 5 →