Te/Cr共掺提高PbSe的热电性能
Improvement in Thermoelectric Performance of PbSe via Te/Cr Co-doping
何傲天 1李柏桥 1刘青青 1魏榕 1宋吉明1
作者信息
- 1. 安徽大学材料科学与工程学院 合肥 230601
- 折叠
摘要
采用高温固相法和快速热压工艺在PbSe的Pb位掺入Cr以调节载流子有效质量、在Se位掺入Te以调节载流子浓度,协同优化载流子迁移率以提高基体材料的热电优值ZT.最终获得的Pb0.97Cr0.03Se0.94Te0.06热电材料在673K时ZT为0.44,是未掺杂样品PbSe的4.89倍.
Abstract
In this work,Cr was added to the Pb site of PbSe to regulate the effective mass of charge carriers,and Te was added to the Se site to adjust the concentration of charge carriers by using high-temperature solid-phase method and rapid hot pressing process.Thus,the carrier mobility of the host material was synergistically optimized,and the final obtained Pb0.97Cr0.03Se0.94Te0.06 thermoelectric material had a ZT of 0.44 at 673K,which was 4.89 times that of the undoped sample PbSe.
关键词
热电材料/硒化铅/快速热压烧结/Te/Cr共掺Key words
Thermoelectric material/PbSe/Rapid hot-pressing sintering/Te/Cr co-doping引用本文复制引用
出版年
2024
NETL
NSTL
万方数据