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Piezoelectric nanogenerator based on flexible PDMS-BiMgFeCeO6 composites for sound detection and biomechanical energy harvesting

Title
Piezoelectric nanogenerator based on flexible PDMS-BiMgFeCeO6 composites for sound detection and biomechanical energy harvesting
Author(s)
Hajra, SugatoOh, YumiSahu, ManishaLee, KyungtaekKim, Hang-GyeomPanigrahi, Basanta KumarMistewicz, KrystianKim, Hoe Joon
Issued Date
2021-11
Citation
Sustainable Energy & Fuels, v.5, no.23, pp.6049 - 6058
Type
Article
Keywords
TEMPERATUREPZT
ISSN
2398-4902
Abstract
Piezoelectric nanogenerators are dependent on a piezoelectric material for the conversion of mechanical stress into useful electrical energy. This paves the way for the development of piezoelectric material compositions starting from ceramic oxides, polymers, and organic compounds to design piezoelectric energy harvesters towards energy harvesting and self-powered sensor development. In the present work, we introduce a multiferroic composition, BiMgFeCeO6 (henceforth referred to as BMFCO), using a higherature reaction route. The physicochemical properties of the synthesized samples were systematically investigated, providing insight into their interesting structure-property correlation. The BMFCO particles were further blended with PDMS at different weight percentages (wt%) and converted into flexible composite films. Stability and capacitor charging tests confirm their stable and durable electrical output over a longer period. Biomechanical energy harvesting was performed by attaching the 10 wt% BMFCO-PDMS-based device (hereafter referred to as PENG10) to a computer mouse and for several body movements. Digital signal processing techniques such as wavelet transform and wavelet packet transform were employed to recognize the difference between a comfortable sound level and excessive volume based on the output recorded by a PENG attached to a speaker. This journal is © The Royal Society of Chemistry.
URI
http://hdl.handle.net/20.500.11750/15837
DOI
10.1039/d1se01587g
Publisher
ROYAL SOCIETY OF CHEMISTRY
Related Researcher
  • 김회준 Kim, Hoe Joon
  • Research Interests MEMS/NEMS; Micro/Nano Sensors; Piezoelectric Devices; Nanomaterials; Heat Transfer; Atomic Force Microscope
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Department of Robotics and Mechatronics Engineering Nano Materials and Devices Lab 1. Journal Articles

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