Fabrication of an all-oxide thermoelectric power generator

Matsubara, Ichiro; Funahashi, Ryoji; Takeuchi, Tomonari; Sodeoka, Satoshi; Shimizu, Tadaaki; Ueno, Kazuo
June 2001
Applied Physics Letters;6/4/2001, Vol. 78 Issue 23, p3627
Academic Journal
An oxide thermoelectric device was fabricated using Gd-doped Ca[sub 3]Co[sub 4]O[sub 9] p-type legs and La-doped CaMnO[sub 3] n-type legs on a fin. The power factors of p legs and n legs were 4.8x10[sup -4] Wm[sup -1] K[sup -2] and 2.2x10[sup -4] Wm[sup -1] K[sup -2] at 700 °C in air, respectively. With eight p-n couples the device generated an output power of 63.5 mW under the thermal condition of hot side temperature T[sub h]=773 °C and a temperature difference ΔT=390 °C. This device proved to be operable for more than two weeks in air showing high durability. © 2001 American Institute of Physics.


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