Measuring the thermal conductivity and interfacial thermal resistance of suspended MoS2 using electron beam self-heating technique

作     者：Adili Aiyiti Xue Bai Jing Wu Xiangfan Xu Baowen Li 

作者机构：Center for Phononics and Thermal Energy Science School of Physics Science and Engineering Tongji University Shanghai 200092 China China-EU Joint Centerfor Nanophononics School of Physics Science and Engineering Tong ji University Shanghai 200092 China Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology School of Physics Science and Engineering Tongji University Shanghai 200092 China NUS Graduate School for Integrative Sciences and Engineering National University of Singapore Kent Ridge 119620 Singapore Institute of Materials Research and Engineering (IMRE) 2 Fusionopolis Way Innovis #08-03 138634 Singapore Department of Mechanical Engineering University of Colorado Boulder CO 80309-0427 USA 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2018年第63卷第7期

页      面：452-458页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(11674245 and 11334007) Shanghai Committee of Science and Technology in China(17142202100 and 17ZR1447900) supported by A*STAR Pharos Funding from the Science and Engineering Research Council of Singapore(Grant No.152 72 00015) 

主　　题：MoS2 热传导性 技术 测量 横梁 电子 加热 界面 

摘      要：Establishment of a new technique or extension of an existing technique for thermal and thermoelectric measurements to a more challenging system is an important task to explore the thermal and thermoelectric properties of various materials and systems. The bottleneck lies in the challenges in measuring the thermal contact resistance. In this work, we applied electron beam self-heating technique to derive the intrinsic thermal conductivity of suspended Molybdenum Disulfide(MoS_2) ribbons and the thermal contact resistance, with which the interfacial thermal resistance between few-layer MoS_2 and Pt electrodes was calculated. The measured room temperature thermal conductivity of MoS_2 is around ~30 W/(m K),while the estimated interfacial thermal resistance is around ~2 × 10^(-6)m^2 K/W. Our experiments extend a useful branch in application of this technique for studying thermal properties of suspended layered ribbons and have potential application in investigating the interfacial thermal resistance of different twodimensional(2 D) heterojunctions.