湿化学方法掺杂Na对多晶SnS热电性能的影响（英文）

被引：3

作者：

唐怀超 ^{[1
]}

董金峰 ^{[1
]}

孙富华 ^{[1
]}

Asfandiyar ^{[1
]}

尚鹏鹏 ^{[2
]}

李敬锋 ^{[1
]}

机构：

[1] State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University

[2] College of Chemistry and Materials Science, Shandong Agricultural

来源：

Science China Materials | 2019年 / 62卷 / 07期

关键词：

SnS; rapid preparation; Na doping; thermoelectric;

D O I：

暂无

中图分类号：

TB34 [功能材料];

学科分类号：

080501 ;

摘要：

SnS作为一种与SnSe特征结构相似且元素丰度更高的热电材料,受到越来越多的关注,但是其较低的本征载流子浓度限制了热电性能的提升.本工作利用了一种改进的化学共沉淀方法调节基体中Na+含量来提高载流子浓度,进而提升了多晶SnS的热电性能.最大功率因子在873 K达到362μW m-1K-2,高于目前关于多晶SnS的最高报道值.得益于提升的电输运性能以及较低的热导率, ZT值在873 K达到0.52.该工作为其他热电化合物的掺杂改性技术提供了新思路.

引用

页码：1005 / 1012

页数：8

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