Earth-Abundant Fe-Al-Si Thermoelectric (FAST) Materials: from Fundamental Materials Research to Module Development
Earth-Abundant Fe-Al-Si Thermoelectric (FAST) Materials: from Fundamental Materials Research to Module Development
复制标题
地球储量丰富的铁铝硅热电 (FAST) 材料：从基础材料研究到模块开发
DOI：
10.1021/acsami.0c15063
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发表时间：
2020
影响因子：
9.5
通讯作者：
and H. Kojima
中科院分区：
文献类型：
--
作者：
Y. Takagiwa;T. Ikeda;and H. Kojima
为了开发一种支持物联网(IoT)社会的自主发电技术，我们提出了由Fe3Al2Si3相组成的低成本、无毒的Fe-Al-Si基热电(FAST)材料。由于快速材料的成本效益和易于处理，它们对于驱动物联网传感器和设备的自主电源很有吸引力。虽然铋-碲基热电发电组件已经商业化，但快速材料的发现开辟了一条在室温下以小温差利用余热发电的额外途径，这将扩大热电发电模块的应用多样性。本文报道了用常规实验室合成和批量生产工艺合成的FAST材料的热电性能，通过均化和去除金属沉淀物提高功率因数小于600K，开发热电发电模块，以及发电试验的结果。演示了在室温下利用快速材料基组件实现温湿度传感器的低能量蓝牙无线传输和温湿度传感器的工作。
To develop an autonomous power generation technology to support an internet-of-things (IoT) society, we proposed low-cost and nontoxic Fe–Al–Si-based thermoelectric (FAST) materials consisting of an Fe3Al2Si3phase. Because of the cost-effectiveness and easy disposal of FAST materials, they are attractive for autonomous power supplies to drive IoT sensors and devices. While bismuth–tellurium-based thermoelectric power generation modules have been commercialized, the discovery of FAST materials opens an additional route to generate power from waste heat at room temperature under a small temperature difference, which will expand the diversity of applications of thermoelectric power generation modules. This paper reports the thermoelectric properties of FAST materials synthesized by conventional laboratory-scale synthesis and mass production processes, enhancement of power factor less than 600 K through homogenization and removal of metallic precipitations, development of thermoelectric power generation modules, and the results of power generation tests. The operation of temperature/humidity sensors and wireless transmission by Bluetooth low energy communication using FAST materials-based modules under a small temperature difference at room temperature was demonstrated.