Presentation + Paper
7 June 2024 A perspective on multi-source energy harvesting technology using piezoelectric and thermoelectric materials
Author Affiliations +
Abstract
Energy harvesting using various locally available energy sources such as vibration energy, heat, sound, or magnetic field have become attractive topics for supplying power to modular electronic devices making them run independently in extreme environments. In this paper, we will be discussing the perspectives on thermoelectric (TE) and piezoelectric materials and devices, and then the concept of multi-source energy harvester using piezoelectric and thermoelectric devices and integration of them into a reliable and independent power source. TE materials having low thermal conductivity and high figure-of-merit (zT) are developed to convert even a small temperature gradient efficiently into electrical energy with the state-of-the-art conversion efficiency of ~15% and output power of ~56W from single device. The piezoelectric device architecture is configured using high performance piezoelectric ceramics (Cu-Mn-PIN-PMN-PT). These ceramics exhibit high piezoelectric coefficient with high mechanical quality factor and low dielectric loss factor. Using these piezoelectric materials, power density as high a 2mW/cm2 is demonstrated in 1-1.5g vibration environments. The piezoelectric device is attached on the surface of TE module to capture both the vibration and thermal energy sources to realize dual mode energy harvester. The multi-energy transfer strategy opens opportunities for a future generation of wireless and modular electronic devices. These devices would be useful in powering wearable electronic devices, micro sensor chargers, etc. in extreme environmental conditions using body heat/thermal sources and induced motion/vibrations.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Narasimha Prasad, Wenji Li, Sumanta Kumar Karan, Subrata Ghosh, Rabeya Smriti, and Bed Poudel "A perspective on multi-source energy harvesting technology using piezoelectric and thermoelectric materials", Proc. SPIE 13027, Energy Harvesting and Storage: Materials, Devices, and Applications XIV, 1302706 (7 June 2024); https://doi.org/10.1117/12.3013228
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KEYWORDS
Energy harvesting

Magnetism

Piezoelectric materials

Ultrasonography

Materials properties

Electrical conductivity

Thermal stability

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