Thermoelectric power factor in semiconductors with buried epitaxial semimetallic nanoparticles

被引:128
作者
Zide, JM [1 ]
Klenov, DO
Stemmer, S
Gossard, AC
Zeng, G
Bowers, JE
Vashaee, D
Shakouri, A
机构
[1] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
[3] Univ Calif Santa Cruz, Jack Baskin Sch Engn, Santa Cruz, CA 95064 USA
关键词
D O I
10.1063/1.2043241
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have grown composite epitaxial materials that consist of semimetallic ErAs nanoparticles embedded in a semiconducting In0.53Ga0.47As matrix both as superlattices and randomly distributed throughout the matrix. The presence of these particles increases the free electron concentration in the material while providing scattering centers for phonons. We measure electron concentration, mobility, and Seebeck coefficient of these materials and discuss their potential for use in thermoelectric power generators. (c) 2005 American Institute of Physics.
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页数:3
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