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p型Ag0.5(Pb8-xSnx)In0.5Te10化合物的制备及其热电性能

刘海君 鄢永高 唐新峰 尹玲玲 张清杰

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p型Ag0.5(Pb8-xSnx)In0.5Te10化合物的制备及其热电性能

刘海君, 鄢永高, 唐新峰, 尹玲玲, 张清杰

Preparation and thermoelectric properties of p-type Ag0.5(Pb8-xSnx)In0.5Te10 compounds

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  • 采用高温熔融缓冷和放电等离子烧结工艺制备了p型Ag0.5(Pb8-xSnx)In0.5Te10五元化合物.研究了Sn含量对化合物载流子传输特性及热电性能的影响规律.结果表明:在Ag0.5(Pb8-xSnx)In0.5Te10(x
    The single-phase p-type Ag0.5(Pb8-xSnx)In0.5Te10 compounds were prepared by melt reaction and spark plasma sintering (SPS). Influences of Sn substitution for Pb on the carrier transport property and thermoelectric properties of the Ag0.5(Pb8-xSnx)In0.5Te10 (x=2, 2.5, 3, 3.5, 4) were investigated. Results indicate that: the carrier concentration and electrical conductivity increase with the increase of Sn substitution fraction x, the carrier mobility remains stable with the increase of x, the Seebeck coefficient and lattice thermal conductivity decrease with the increasing of x. Thermal conductivity decreases further after spark plasma sintering. The dimensionless figure of merit ZT of Ag0.5(Pb5Sn3)In0.5Te10(after SPS) reached a high maximum value of 1.05 at 700K.
    • 基金项目: 国家自然科学基金重大国际合作项目(批准号:50310353)和教育部科技创新工程重大项目培育基金(批准号:705035)资助的课题.
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  • 被引次数: 0
出版历程
  • 收稿日期:  2007-03-04
  • 修回日期:  2007-05-21
  • 刊出日期:  2007-06-05

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