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中文摘要：
PbSe与热电材料PbTe同属于Ⅳ-Ⅵ族半导体材料，且晶体结构相同，但是PbSe作为热电材料的研究较少。鉴于高温高压合成能够有效提高PbTe的热电性能，利用高压熔融淬火方法制备了PbSe，并通过X射线衍射和扫描电子显微镜表征了PbSe的物相组成及微观结构，研究了合成压力及温度对PbSe电学性能的影响。结果表明，高温高压制备的PbSe具有较低的电阻率和较高的功率因子，是较好的温差发电用热电材料。
英文摘要：
Consistent with the state of art thermoelectric material PbTe, PbSe belongs to group IV-V[ semiconductor. And PbSe has the same erystal structure as PbTe. But there are few reports about PbSe as thermoelectric material. A large number of studies show that the thermoelectric performance of PbTe is improved effectively under high pressure. In this paper,PbSe was synthesized by high pressure and high temperature method. The phase compositions and microstructures of PbSe were characterized by X-ray diffraction （XRD） and scanning eleetron mieroscope （SEM）. The electrical properties meas- urement results show that PbSe sample synthesized under high pressure has low electrical resistivity and high power factor,and therefore it is a promising thermoelectric material applicable to thermoelec- tric power generation.
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