Polyvinylpyrrolidone modified barium zirconate titanate /polyvinylidene fluoride nanocomposites as self-powered sensor
| Autor: | Aniket Patra, Shrabanee Sen, Avijit Pal |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
02 engineering and technology Dielectric 010402 general chemistry 01 natural sciences Zirconate chemistry.chemical_compound Materials Chemistry medicine Ceramic Composite material Nanocomposite Polyvinylpyrrolidone Process Chemistry and Technology 021001 nanoscience & nanotechnology Polyvinylidene fluoride Ferroelectricity Titanate 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry visual_art Ceramics and Composites visual_art.visual_art_medium 0210 nano-technology medicine.drug |
| Zdroj: | Ceramics International. 44:11196-11203 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2018.03.150 |
| Popis: | Highly flexible biocompatible nanocomposites comprising of Polyvinylpyrrolidone (PVP) modified Barium Calcium Zirconate Titanate (BCT-BZT) /Polyvinylidene fluoride (PVDF) were fabricated. The crystalline BCT-BZT powders were synthesized by a simple sol-gel method. Rietveld refinement analysis confirmed the coexistence of orthorhombic and tetragonal phase in the synthesized powders. The structural, dielectric and ferroelectric properties of the composites were analysed. Addition of PVP modified BCT-BZT powders was observed to enhance the polar phase in PVDF matrix. The piezoelectric output response as a function of different weight percentage of ceramic powders in the PVDF matrix was investigated. The optimal device with 60 wt% PVP modified BCT-BZT powders exhibited maximum peak to peak voltage of 23 V when tested for harnessing waste biomechanical energy (human hand palm force). The nanogenerator was easily scaled up to 4 × 4 cm and the stored power was utilized for powering fifty five LEDs. The fabricated device is flexible, light- weight and eco-friendly. Therefore, it can be explored as a potential candidate for application as self powered sensor. |
| Databáze: | OpenAIRE |
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