Please use this identifier to cite or link to this item: https://doi.org/10.1109/LED.2010.2053190
Title: Theoretical study on thermoelectric properties of Ge nanowires based on electronic band structures
Authors: Huang, W.
Koong, C.S.
Liang, G. 
Keywords: Nanotechnology
semiconductor materials
thermoelectric devices
thermoelectricity
Issue Date: Sep-2010
Source: Huang, W., Koong, C.S., Liang, G. (2010-09). Theoretical study on thermoelectric properties of Ge nanowires based on electronic band structures. IEEE Electron Device Letters 31 (9) : 1026-1028. ScholarBank@NUS Repository. https://doi.org/10.1109/LED.2010.2053190
Abstract: Theoretical studies on the thermoelectric properties of Ge nanowires (NWs) in terms of the Seebeck coefficient, electrical conductance, and power factor are carried out under different combinations of parameters. As orientation affects power factor, [100] Ge NWs have better performance than NWs along [111] and [110] in general. For extremely small (1-nm) NWs, the effect of cross-sectional shape also plays an important role on the thermoelectric properties of Ge NWs due to quantum confinement effects. The thermoelectric properties vary strongly depending on the band structure of the Ge NWs of different sizes, cross-sectional shapes, and orientations. Comparing the results between 1-nm triangular Ge and Si NWs in terms of power factor, p-type Ge NWs outperform Si NWs, while n-type Si NWs outperform Ge NWs due to the higher numbers of subband valleys contributing to electron transport. © 2010 IEEE.
Source Title: IEEE Electron Device Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/57646
ISSN: 07413106
DOI: 10.1109/LED.2010.2053190
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