Patra, Aniket and Pal, Avijit and Sen, Shrabanee (2018) Polyvinylpyrrolidone modified barium zirconate titanate/polyvinylidene fluoride nanocomposites as self-powered sensor. Ceramics International, 44 (10). pp. 11196-11203. ISSN 0272-8842

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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 ferro-electric 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 60wt% PVP modified BCT-BZT powders exhibited maximum peak to peak voltage of 23 V when tested for harnessing waste biomechamcal energy (human hand palm force). The nanogenerator was easily scaled up to 4 x 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.

Item Type: Article
Subjects: Electronics
Divisions: Sensor and Actuator
Depositing User: Bidhan Chaudhuri
Date Deposited: 28 Aug 2018 11:22
Last Modified: 28 Aug 2018 11:22

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