Field-effect modulation of the thermoelectric characteristics of silicon nanowires on plastic substrates

被引：0
|
作者：
Choi, Jinyong [1 ]
Jeon, Youngin [1 ]
Cho, Kyoungah [1 ]
Kim, Sangsig [1 ]
机构：
[1] Korea Univ, Dept Elect Engn, Anam Ro 145, Seoul 02841, South Korea
来源：
NANOTECHNOLOGY | 2016年 / 27卷 / 48期
基金：
新加坡国家研究基金会;
关键词：
Si nanowires; thermoelectric; field-effect; power factor; POWER FACTOR; THERMOPOWER; FIGURE; MERIT;
D O I：
10.1088/0957-4484/27/48/485401
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, we demonstrate the substantial enhancement of the thermoelectric power factors of silicon nanowires (SiNWs) on plastic substrates achievable by field-effect modulation. The Seebeck coefficient and electrical conductivity are adjusted by varying the charge carrier concentration via electrical modulation with a gate voltage in the 0 to +/- 5 range, thus enhancing the power factors from 2.08 to 935 mu WK(-2)m(-1)) for n-type SiNWs, and from 453 to 944 mu WK(-2)m(-1)) for p-type SiNWs. The electrically modulated thermoelectric characteristics of SiNWs are analyzed and discussed.
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页数：7
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