TY - JOUR
T1 - A plate-type thermoelectric power generator with an oxidized bi-metal interface for power generation from a small temperature difference
AU - Tohmyoh, Hironori
AU - Daimon, Toshinori
N1 - Funding Information:
The authors would like to acknowledge Professor M. Saka for valuable discussions throughout this work, and Mr. A. Watanabe for help in the preliminary experiment. Part of this work was performed at the Micro/Nano-Machining Research and Education Center, Tohoku University. This work was supported by JSPS KAKENHI Grant Number 15H03886 .
Publisher Copyright:
© 2016 Elsevier B.V. All rights reserved.
PY - 2016/6/15
Y1 - 2016/6/15
N2 - A plate-type thermoelectric power generator was fabricated from an Fe plate. The Fe plate was initially oxidized. Next, an Al layer was deposited on the plate, which had been partially covered with an SiO2 layer for electrical insulation, and a bi-metal interface with oxidation was formed. The thermoelectromotive force due to the temperature gradient in the generator was measured for the open circuit condition, and the thermoelectromotive force of the generator with the oxidized interface was about 3 times greater than that of the generator without oxidation. The maximum powers of the generators with and without oxidation were determined from the current-voltage characteristics measured for the closed circuit condition, and it was verified that oxidizing the bi-metal interface was effective in enhancing the performance of the thermoelectric power generator. For example, the maximum power of the generator with the oxidized bi-metal interface was about 0.3 μW at a temperature difference as low as 40 K, and this value was greater than that of the generator without oxidation.
AB - A plate-type thermoelectric power generator was fabricated from an Fe plate. The Fe plate was initially oxidized. Next, an Al layer was deposited on the plate, which had been partially covered with an SiO2 layer for electrical insulation, and a bi-metal interface with oxidation was formed. The thermoelectromotive force due to the temperature gradient in the generator was measured for the open circuit condition, and the thermoelectromotive force of the generator with the oxidized interface was about 3 times greater than that of the generator without oxidation. The maximum powers of the generators with and without oxidation were determined from the current-voltage characteristics measured for the closed circuit condition, and it was verified that oxidizing the bi-metal interface was effective in enhancing the performance of the thermoelectric power generator. For example, the maximum power of the generator with the oxidized bi-metal interface was about 0.3 μW at a temperature difference as low as 40 K, and this value was greater than that of the generator without oxidation.
KW - Bi-metal interface
KW - Fe
KW - Oxidation
KW - Seebeck effect
KW - Thermoelectric power generator
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U2 - 10.1016/j.mee.2016.02.030
DO - 10.1016/j.mee.2016.02.030
M3 - Article
AN - SCOPUS:84959116662
SN - 0167-9317
VL - 159
SP - 38
EP - 41
JO - Microelectronic Engineering
JF - Microelectronic Engineering
ER -