文献类型：期刊文献

英文题名：Influence of Sodium Chloride Doping on Thermoelectric Properties of p-type SnSe

作者：Yang, Shi Dan[1]; Nutor, Raymond Kwesi[1]; Chen, Zi Jie[1]; Zheng, Hao[1]; Wu, Hai Fei[2]; Si, Jian Xiao[1]

机构：[1] Department of Physics, Zhejiang Normal University, Jinhua, 321004, China; [2] Department of Physics, Shaoxing University, Shaoxing, 312000, China

年份：2017

卷号：46

期号：11

起止页码：6662

外文期刊名：Journal of Electronic Materials

收录：EI(收录号：20173104012159)、Scopus(收录号：2-s2.0-85026537061)

语种：英文

外文关键词：Cost effectiveness - Hot pressing - Thermal conductivity - Tin compounds - Sodium chloride - Thermoelectricity - Carrier concentration - Layered semiconductors - Thermoelectric equipment

外文摘要：We investigated the effect of NaCl doping on the thermoelectric properties of p-type Sn1?xNaxSeClx (x?=?0, 0.005, 0.01, 0.02, 0.03 and 0.04) prepared by a method which combines rapid induction melting and rapid hot pressing. After introducing the NaCl into the SnSe system, the carrier concentration of SnSe is significantly increased from ～4.55?×?1017?cm?3 to ～3.95?×?1019?cm?3 at 300?K. An electrical conductivity of ～102.5?S?cm?1 was obtained at 473?K by addition of 2?mol.% NaCl. It was found that Cl was effective in reducing the thermal conductivity by inducing abundant defects. A maximum ZT value of 0.84 was achieved in the Na0.005Sn0.995SeCl0.005 sample at 810?K. This suggests that doping with NaCl is a facile and cost-effective method in optimizing the thermoelectric properties of SnSe materials. ? 2017, The Minerals, Metals & Materials Society.