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Influence of Sodium Chloride Doping on Thermoelectric Properties of p-type SnSe  ( SCI-EXPANDED收录)   被引量:17

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]Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Peoples R China;[2]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R 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:SCI-EXPANDED(收录号:WOS:000412024000050)、、WOS

基金:This work was supported by the National Natural Science Foundation of China (Grant Nos. 51302248 and 51202149), Zhejiang Provincial Natural Science Foundation of China (Grant No. Y1110563).

语种:英文

外文关键词:Tin selenide; sodium chloride; thermoelectric performance

外文摘要:We investigated the effect of NaCl doping on the thermoelectric properties of p-type Sn (1-x) Na (x) SeCl (x) (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 similar to 4.55 x 10(17) cm(-3) to similar to 3.95 x 10(19) cm(-3) at 300 K. An electrical conductivity of similar to 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.

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