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The size-dependent thermoelectric response of tungsten-constantan thermocouple in the sub-micro scale.
- Source :
-
Applied Physics A: Materials Science & Processing . May2012, Vol. 107 Issue 2, p455-458. 4p. 1 Black and White Photograph, 1 Diagram, 2 Graphs. - Publication Year :
- 2012
-
Abstract
- We present the behavior of the thermoelectric response in a nanoscale tungsten-constantan (Cu 58%, Ni 42%) thermocouple (TC). The TC is tip-section typed and fabricated by the stepping method. The thermal electromotive force (emf) showed nearly linear behavior versus temperature over the range from 0 to 100C. For the thermocouples with contact radius below 300 nm, the Seebeck coefficient decreased with the size of thermocouples turning smaller. According to the theory based on the free-electron model, the size-dependence thermal electric response may be ascribed to the change of electronic property in nanoscale. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09478396
- Volume :
- 107
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Applied Physics A: Materials Science & Processing
- Publication Type :
- Academic Journal
- Accession number :
- 74131311
- Full Text :
- https://doi.org/10.1007/s00339-012-6762-4