期刊
APPLIED PHYSICS LETTERS
卷 104, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4861845
关键词
-
资金
- European Research Council [ERC StG-259082, 2DTHERMS]
- Xunta de Galicia [2012-CP071]
- Ministry of Economy and Competitiveness [MAT2010-16157]
CrN was doped with Mo and W to study the effect of heavy elements alloying on its thermoelectric properties. An spontaneous phase segregation into Mo- and W-rich regions was observed even at the lowest concentrations probed at this work (similar or equal to 1%). In the particular case of W, this segregation creates nanoinclusions into the Cr1-xWxN matrix, which results in a substantial reduction of the thermal conductivity in the whole temperature range compared to undoped CrN. In addition, an increased hybridization of N:2p and 4d/5d orbitals with respect to Cr:3d decreases the electrical resistivity in lightly doped samples. This improves substantially the thermoelectric figure of merit with respect to the undoped compound, providing a pathway for further improvement of the thermoelectric performance of CrN. (C) 2014 AIP Publishing LLC.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据