Affiliation:
1. Laboratory for Magnetic and Electronic Properties at Interface The University of Tokyo 7‐3‐1 Bunkyo‐ku Tokyo 113–0033 Japan
2. Core Technology Research Center Nitto Denko Corporation 1‐1‐2 Ibaraki Osaka 567–8680 Japan
3. Department of Physics The University of Tokyo 7‐3‐1 Bunkyo‐ku Tokyo 113–0033 Japan
4. Institute for Solid State Physics The University of Tokyo 5‐1‐5 Kashiwa Chiba 277–8581 Japan
5. Trans‐scale Quantum Science Institute The University of Tokyo 7‐3‐1 Bunkyo‐ku Tokyo 113–0033 Japan
Abstract
AbstractThe anomalous Nernst effect (ANE) converts heat flux perpendicular to the plane into electricity, in sharp contrast with the Seebeck effect (SE), enabling mass production, large area, and flexibility of their devices through ordinary thin‐film fabrication techniques. Heat flux sensors, one of the most promising applications of ANE, are powerful devices for evaluating heat flow and can lead to energy savings through efficient thermal management. In reality, however, SE caused by the in‐plane heat flux is always superimposed on the measurement signal, making it difficult to evaluate the perpendicular heat flux. Here, ANE‐type heat flux sensors that selectively detect a perpendicular heat flux are fabricated by adjusting the net Seebeck coefficient in their thermopile circuit with mass‐producible roll‐to‐roll sputtering methods. The direct sensing of perpendicular heat flux using ANE‐based flexible thermopiles, as well as their simple fabrication process, paves the way for the practical application of thin‐film thermoelectric devices.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Cited by
4 articles.
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