Engineering and Technology

Wearable multi-sensing double-chain thermoelectric generator

D. Wen, H. Deng, et al.

Discover the future of energy harvesting with the innovative wearable thermoelectric generator (ThEG) developed by Dan-Liang Wen, Hai-Tao Deng, Xin Liu, Guo-Ke Li, Xin-Ran Zhang, and Xiao-Sheng Zhang. With its unique double-chain design, this device not only captures body heat to power small electronics but also senses environmental conditions like temperature and moisture, paving the way for next-generation self-powered microsystems.

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Index

Abstract

This paper introduces a wearable thermoelectric generator (ThEG) with a novel double-chain configuration for simultaneous energy harvesting and multi-functional sensing. Unlike traditional single-chain ThEGs, each chain in this double-chain ThEG (DC-ThEG) harvests heat energy, and together they function as sensing electrodes. Screen printing is used to create the device, making it flexible, high-performance, and cost-effective. A silk fibroin layer covers the gap between the chains, enabling sensing of liquid water molecules and temperature. Experimental results show a 151 mV open-circuit voltage and the ability to generate 3.3 V to power devices like a calculator using body heat. This integrated approach of powering and sensing opens new avenues for advanced ThEGs, particularly in all-in-one self-powered microsystems.

Publisher

Microsystems & Nanoengineering

Published On

Jan 28, 2020

Authors

Dan-Liang Wen, Hai-Tao Deng, Xin Liu, Guo-Ke Li, Xin-Ran Zhang, Xiao-Sheng Zhang

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