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
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.
引用
收藏
页数:7
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