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多晶块材热电材料Seebeck系数的晶粒尺寸效应 被引量：1

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摘要 基于Boltzmann输运方程,在考虑晶界散射效应并将晶界散射作为电子输运边界条件的基础上,建立了多晶块材热电材料的Seebeck系数的理论预测模型.进而研究了多晶块材热电材料的Seebeck系数晶粒尺寸效应,探讨了透射率、温度和平均自由程等对Seebeck系数的影响.结果表明,本文的理论模型能有效预测多晶块材热电材料的Seebeck系数的晶粒尺寸效应,且与相关实验结果具有较好的一致性.透射率、温度以及平均自由程等对Seebeck系数的晶粒尺寸效应也存在明显的影响.
作者 高原文 何月洲 朱林利
机构地区 兰州大学西部灾害与环境力学教育部重点实验室
出处 《科学通报》 EI CAS CSCD 北大核心 2009年第21期3278-3282,共5页 Chinese Science Bulletin
基金 国家重点基础研究发展计划(编号:2007CB607506) 国家自然科学基金(批准号:10672070) 新世纪优秀人才支持计划(编号:NCET06-0896)资助项目
关键词 SEEBECK系数 尺寸效应 晶界散射 多晶块材热电材料
分类号 O481 [理学—固体物理]
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参考文献20

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共引文献20

同被引文献18

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科学通报
2009年 第21期

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