摘要
采用成熟工艺制备了N型、P型调制掺杂型Si80Ge20基固溶体合金及等化学计量比的均匀掺杂型Si80Ge20基固溶体合金,重点研究了两类固溶体合金的热电性能。结果表明:温度为773 K时,N型系列、P型系列,调制掺杂型固溶体合金较均匀掺杂型的功率因子分别提高了13.6%和49.2%,热电优值ZT分别提高了7.9%和12.9%。
N-type, P-type modulation-doped Si80Ge20 solid solution alloy and equivalent stoichiometric ratio uniform-doped Si80Ge20 solid solution alloy were prepared by our mature technologies. We concentrated on the thermoelectric properties of both alloy materials. The results show that the power factors of N-type, P-type modulation-doped solid solution alloys are enhanced by 13.6% and 49.2% respectively, compared with that of uniform-doped Si80Ge20 solid solution alloy. And their ZT （thermoelectric figure of merit） are enhanced by 7.9% and 12.9%, respectively.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2013年第12期2490-2493,共4页
Rare Metal Materials and Engineering
基金
国家自然科学基金资助项目(51171117)
广东省科技计划项目(2006B14001001)
深圳市科技计划项目(CXB200903090012A)
关键词
热电材料
Si80Ge20固溶体合金
功率因子
热电性能
调制掺杂
thermoelectric material
Si80Ge20 solid solution alloy
power factor
thermoelectric properties
modulation-doping
