|   | 
Details
   web
Record
Author Pabba, D.P.; Rao, B.V.B.; Thiam, A.; Kumar, M.P.; Mangalaraja, R.V.; Udayabhaskar, R.; Aepuru, R.; Thirumurugan, A.
Title Flexible magnetoelectric PVDF-CoFe2O4 fiber films for self-powered energy harvesters Type
Year 2023 Publication Ceramics International Abbreviated Journal Ceram. Int.
Volume 49 Issue 19 Pages 31096-31105
Keywords Magnetoelectric; Energy harvesting; CoFe 2 O 4 fibers; PVDF
Abstract Integrating the concept of magnetoelectric in the mechanical energy harvesters through the magneto-mechanoelectrical (MME) nanogenerators has been explored to realize the self-powered devices. The magnetoelectric interaction enabled the output performance of the MME nanogenerator under magnetic stimulus of the active components of the energy harvesters. In this perspective, we fabricated a flexible biomechanical and MME nanogenerator using PVDF/CoFe2O4 fibers composite films. CoFe2O4 fibers were synthesized by the electrospinning technique and the process parameters were optimized to achieve uniform and bead-free fibers. The structural and morphological properties were investigated through scanning electron microscopy (SEM), transmission electron microscopy (TEM), and atomic force microscopy (AFM). The structural and morphology revealed the fibers calcined at 800 degrees C with a heating rate of 2 degrees C/min produced bead-free continuous fibers with a fiber diameter of 210 nm with cubic spinel crystalline structure with a crystallite size of 34 nm. These highly crystalline fibers were used to fabricate PVDF/CoFe2O4 fibers composite films. The magnetoelectric behaviour of the films verified through polarization vs. electric field (P-E) loops under magnetic field. The leakage current density and mechanism of the composite films were investigated, and it was discovered that the mechanism was due to Schottky emission. Further the energy harvesting performance of the composite films were estimated where the nanogenerator achieved an output voltage of 13 V under biomechanical tapping force while the MME nanogenerator produced 3.5 V under a low frequency stray magnetic field of 6 Oe with a power density of 28 & mu;W/m2.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0272-8842 ISBN Medium
Area Expedition Conference
Notes WOS:001054171300001 Approved
Call Number UAI @ alexi.delcanto @ Serial 1867
Permanent link to this record