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Triple perovskite-based triboelectric nanogenerator: a facile method of energy harvesting and self-powered information generator

Title
Triple perovskite-based triboelectric nanogenerator: a facile method of energy harvesting and self-powered information generator
Authors
Sahu, ManishaHajra, SugatoBijelic, JelenaOh, DaegunDjerdj, IgorKim, Hoe Joon
DGIST Authors
Sahu, Manisha; Hajra, Sugato; Bijelic, Jelena; Oh, Daegun; Djerdj, Igor; Kim, Hoe Joon
Issue Date
2021-06
Citation
Materials Today Energy, 20, 100639
Type
Article
Author Keywords
Soft electronicsSol-gelBiomechanicalDielectricRenewable energy
Keywords
Contact separationElectrical responseEnergy HarvesterEnergy scavengingReal-time applicationDielectric propertiesElectric generatorsEnergy harvestingMicrochannelsNanocomposite filmsNanotechnologyParticle size analysisPerovskiteSol-Gel ReactionTriboelectrificationTriple perovskiteNanogeneratorsSignalingSiliconesSol-gelsStrontium compoundsTriboelectricity
ISSN
2468-6069
Abstract
A modified aqueous sol-gel reaction is used to synthesize a triple perovskite with a composition Sr3Co2WO9 (SCWO). The structural analysis conducted at room temperature reveals the presence of the cubic phase with space group Fm-3m. The microstructure of the as-synthesized SCWO particles shows a different size of particles depicting a polycrystalline nature. Triboelectrification is a trending and unique concept in energy scavenging methodologies with flexibility in choosing from a variety of materials. This paves the way to evolve eco-friendly triboelectric energy harvesters as a replacement for the limitation of batteries. The outstanding dielectric properties and low loss make triple perovskite a promising candidate for TENG. A triboelectric nanogenerator (TP-TENG) was designed, which operates in vertical contact separation mode generating an electrical response of voltage and current of 300 V and 2.2 μA, respectively, for 10 wt% polydimethylsiloxane-Sr3Co2WO9 (PDMS-SCWO) composite film. The power density of the rough surface TP-TENG was 30.5 μW/cm2, which is much higher than the power density of 5.5 μW/cm2 of plain surface TP-TENG. The positive and negative triboelectric layers of the TP-TENG were made up of aluminum and PDMS-SCWO composite film, respectively. Furthermore, the excellent flexibility and durability of TP-TENG make it suitable for sensing various gaits and information signaling (Morse code) in real-time applications, as well as for charging commercial capacitors. © 2021 Elsevier Ltd
URI
http://hdl.handle.net/20.500.11750/13494
DOI
10.1016/j.mtener.2021.100639
Publisher
Elsevier
Related Researcher
Files:
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Collection:
ETC1. Journal Articles
Department of Robotics and Mechatronics EngineeringNano Materials and Devices Lab1. Journal Articles


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