【作者】 周燕飞； 李小亚； 陈立东；

【Author】 ZHOUYanfei LI Xiaoya CHEN Lidong CAS Key Laboratory of Materials for Energy Conversion,Shanghai Institute of Ceramics, Chinese Academy of Science,Shanghai 200050

【机构】 中国科学院上海硅酸盐研究所中国科学院能量转换重点实验室；

【摘要】 本文对用区熔法在俄罗斯Polizon多功能晶体炉上制备的n型Bi₂Se_0.21Te_2.79热电晶体进行了低温热电性能（如低温电导率、塞贝克系数、热导率和霍尔系数等）的表征,PPMS测试结果说明,微重力环境可以影响Bi₂Se_0.21Te_2.79基热电材料的电子传输性能,增大载流子的迁移率,但对该热电材料的热传导性能儿乎没有影响。更多还原

【Abstract】 Low temperature thermoelectric properties（such as low temperature electrical conductivity,Seebeck coefficient,thermal conductivity and Hall coefficient and so on） of n-type Bi₂Se_0.21Te_2.79 crystals grown by zone melting on the Polizon furnace of Russia have been measured by PPMS methods.These results indicate that microgravity conditions can effect on electrical transport properties of Bi₂Te₃-base materials,increasing the carrier mobility.But thermal transport properties of Bi₂Te₃-base materials are almost no change under microgravity and ground conditions.更多还原