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The Seebeck coefficient and phonon drag in silicon
被引:48
|作者:
Mahan, G. D.
[1
]
Lindsay, L.
[2
]
Broido, D. A.
[3
]
机构:
[1] Penn State Univ, Dept Phys, University Pk, PA 16802 USA
[2] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA
[3] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA
关键词:
THERMOELECTRIC-POWER;
ELECTRON-MOBILITY;
SCATTERING MOBILITY;
IMPURITY;
D O I:
10.1063/1.4904925
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
We present a theory of the phonon-drag Seebeck coefficient in nondegenerate semiconductors, and apply it to silicon for temperatures 30< T< 300 K. Our calculation uses only parameters from the literature, and previous calculations of the phonon lifetime. We find excellent agreement with the measurements of Geballe and Hull [Phys. Rev. 98, 940 ( 1955)]. The phonon-drag term dominates at low temperature, and shows an important dependence on the dimensions of the experimental sample. (C) 2014 AIP Publishing LLC.
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页数:7
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