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Open Access NANO EXPRESS

The Characteristics of Seebeck Coefficient in Silicon Nanowires Manufactured by CMOS Compatible Process

Moongyu Jang1*, Youngsam Park1, Myungsim Jun1, Younghoon Hyun1, Sung-Jin Choi2 and Taehyoung Zyung1

Author Affiliations

1 Electronics and Telecommunications Research Institute (ETRI), Taejon, 305-700, Korea

2 Korea Advanced Institute of Science and Technology (KAIST), Taejon, 305-701, Korea

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Nanoscale Research Letters 2010, 5:1654-1657  doi:10.1007/s11671-010-9690-2

Published: 18 July 2010

Abstract

Silicon nanowires are patterned down to 30 nm using complementary metal-oxide-semiconductor (CMOS) compatible process. The electrical conductivities of n-/p-leg nanowires are extracted with the variation of width. Using this structure, Seebeck coefficients are measured. The obtained maximum Seebeck coefficient values are 122 μV/K for p-leg and −94 μV/K for n-leg. The maximum attainable power factor is 0.74 mW/m K2 at room temperature.

Keywords:
Thermoelectric effect; Seebeck coefficient; Silicon; Nanowire