Graphene-enhanced thermoelectric properties of p-type skutterudites

作     者：Dandan Qin Yuan Liu Xianfu Meng Bo Cui Yaya Qi Wei Cai Jiehe Sui 秦丹丹;刘嫄;孟宪福;崔博;祁亚亚;蔡伟;隋解和

作者机构：State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 China Department of Physics and TcSUH University of Houston Houston Texas 77204 USA Fresenius Kabi USA LLC Melrose Park IL 60160 USA 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2018年第27卷第4期

页      面：123-126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）] 080502[工学-材料学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.51622101 51771065 and 51471061) 

主　　题：skutterudites graphene nanocomposites thermoelectric properties 

摘      要：Nanocomposite is proved to be an effective method to improve thermoelectric *** the present study,graphene is introduced into p-type skutterudite La0.8Ti0.1Ga0.1Fe3CoSb12 by plasma-enhanced chemical vapor deposition（PECVD）method to form skutterudite/graphene *** is demonstrated that the graphene has no obvious effect on the electrical conductivity of La0.8Ti0.1Ga0.1Fe3CoSb12,but the Seebeck coefficient is slightly improved at high temperature,thereby leading to high power ***,due to the enhancement of phonon scattering by the graphene,the lattice thermal conductivity is reduced ***,the maximum z T value of La0.8Ti0.1Ga0.1Fe3CoSb12/graphene is higher than that of graphene-free alloy and reaches to 1.0 at 723 *** an approach raised by us enriches prospects for future practical application.