New thermoelectric materials

Amorphous alloy will simplify the structure of thermoelectric conversion elements, reduce costs, and make them multifunctional.

Overview

　The efficient use of thermal energy has become important to realize a sustainable energy recycling society. So, there is a demand for the development of thermoelectric materials.　
　This technology relates to novel thermoelectric materials using the anomalous Nernst effect. Conventional thermoelectric transducers employ complex three-dimensional structures to achieve high thermoelectric power. On the other hand, the anomalous Nernst effect makes it possible to design a variety of thermoelectric devices. Therefore, we investigated the anomalous Nernst effect of a versatile amorphous alloy thin film made mainly of Fe and Sn, which are inexpensive and have excellent environmental harmony, and found that it has the largest class of performance at room temperature.

Features・Outstandings

Product Application

・Thermoelectric sensor　
・Heat flow sensor
・IoT device
・Wearable device

Related Works

[1] Y. Satake et al., Sci. Rep. 9, 3282 (2019).
[2] Hall sensor, JP2018-157542.
[3] J. Shiogai et al., Commun. Mater. 2, 102 (2021).
[4] Magnetic sensor, JP2022-524242.
[5] K. Fujiwara et al., OYO BUTURI 92, p.20–23 (2023).

IP Data

IP No.　 ： PCT/JP2022/038027　
Inventor ： TSUKAZAKI Atsushi, FUJIWARA Kohei, SHIOGAI Junichi
keyword ： ThermoelectricElement, ThermoelectricDevices, ThermoModule