Understanding Potassium Doping in Lead Chalcogenide Thermoelectrics

来源 :The 2nd International Conference on Phononics and thermal En | 被引量 : 0次 | 上传用户：cmccetehi

【摘要】

：

　　We found that 2mol%potassium doped PbQ(Q = Te,Se,S)compounds have low thermal conductivity and therefore show good thermoelectric performance,especially in

【作者】

：

DanFeng[1]XudongLi[1]ZhaoWang[1]HaijunWu[2]JiaqingHe[2]

【机构】

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Frontier Institute of Science and Technology,Xi'an Jiaotong University,China

【出处】

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The 2nd International Conference on Phononics and thermal En

【发表日期】

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2014年期

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　　We found that 2mol%potassium doped PbQ(Q = Te,Se,S)compounds have low thermal conductivity and therefore show good thermoelectric performance,especially in the PbSe+K systems.In microstructure observation by means of electron microscopy,we found a high-density nanoscale grain and precipitate distribution in the samples.Combining with numerical studies [2],we try to find the detailed correlation between the thermal transport properties and the microstructure change of the samples.

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Understanding Potassium Doping in Lead Chalcogenide Thermoelectrics

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