Abstract
We report on the thermoelectric characteristics of p-type silicon nanowires (NWs) on plastics in the relatively low temperature regime below 47 ° C, and for temperature differences of less than 10 K in ambient air. Thermal profile images are utilized to directly determine the temperature difference in the NWs generated by Joule heating in air. The Seebeck coefficient of the NWs increases from 294 to 414 μV K-1 as the NW length varies from 40 to 280 μm. For a temperature difference of 7 K, the maximal Seebeck voltage can be estimated to be 2.7 mV for NWs with a length of 280 μm. In contrast, the output power is maximized for NWs length of 240 μm. The maximized output power obtained experimentally in this study is 2.1 pW at a temperature difference of 6 K. The thermoelectric characteristics are analyzed and discussed.
| Original language | English |
|---|---|
| Article number | 455402 |
| Journal | Nanotechnology |
| Volume | 24 |
| Issue number | 45 |
| DOIs | |
| Publication status | Published - 2013 Nov 15 |
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ASJC Scopus subject areas
- Bioengineering
- Chemistry(all)
- Electrical and Electronic Engineering
- Mechanical Engineering
- Mechanics of Materials
- Materials Science(all)
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Length-dependent thermoelectric characteristics of silicon nanowires on plastics in a relatively low temperature regime in ambient air. / Choi, Jinyong; Cho, Kyoungah; Kim, Sangsig.
In: Nanotechnology, Vol. 24, No. 45, 455402, 15.11.2013.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Length-dependent thermoelectric characteristics of silicon nanowires on plastics in a relatively low temperature regime in ambient air
AU - Choi, Jinyong
AU - Cho, Kyoungah
AU - Kim, Sangsig
PY - 2013/11/15
Y1 - 2013/11/15
N2 - We report on the thermoelectric characteristics of p-type silicon nanowires (NWs) on plastics in the relatively low temperature regime below 47 ° C, and for temperature differences of less than 10 K in ambient air. Thermal profile images are utilized to directly determine the temperature difference in the NWs generated by Joule heating in air. The Seebeck coefficient of the NWs increases from 294 to 414 μV K-1 as the NW length varies from 40 to 280 μm. For a temperature difference of 7 K, the maximal Seebeck voltage can be estimated to be 2.7 mV for NWs with a length of 280 μm. In contrast, the output power is maximized for NWs length of 240 μm. The maximized output power obtained experimentally in this study is 2.1 pW at a temperature difference of 6 K. The thermoelectric characteristics are analyzed and discussed.
AB - We report on the thermoelectric characteristics of p-type silicon nanowires (NWs) on plastics in the relatively low temperature regime below 47 ° C, and for temperature differences of less than 10 K in ambient air. Thermal profile images are utilized to directly determine the temperature difference in the NWs generated by Joule heating in air. The Seebeck coefficient of the NWs increases from 294 to 414 μV K-1 as the NW length varies from 40 to 280 μm. For a temperature difference of 7 K, the maximal Seebeck voltage can be estimated to be 2.7 mV for NWs with a length of 280 μm. In contrast, the output power is maximized for NWs length of 240 μm. The maximized output power obtained experimentally in this study is 2.1 pW at a temperature difference of 6 K. The thermoelectric characteristics are analyzed and discussed.
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UR - http://www.scopus.com/inward/citedby.url?scp=84886249162&partnerID=8YFLogxK
U2 - 10.1088/0957-4484/24/45/455402
DO - 10.1088/0957-4484/24/45/455402
M3 - Article
C2 - 24141226
AN - SCOPUS:84886249162
VL - 24
JO - Nanotechnology
JF - Nanotechnology
SN - 0957-4484
IS - 45
M1 - 455402
ER -