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Quantifying Energy Harvested from Contact‐Mode Hybrid Nanogenerators with Cascaded Piezoelectric and Triboelectric Units
Author(s) -
Chen Song,
Tao Xiaoming,
Zeng Wei,
Yang Bao,
Shang Songmin
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201601569
Subject(s) - triboelectric effect , materials science , piezoelectricity , energy harvesting , polydimethylsiloxane , nanogenerator , nanofiber , generator (circuit theory) , voltage , unimorph , nanotechnology , power (physics) , composite material , electrical engineering , physics , engineering , quantum mechanics
This paper presents an investigation of novel contact‐mode hybrid nanogenerators comprising cascaded piezoelectric and triboelectric units. For the first time, a theoretical analysis of the contact‐mode hybrid generator is presented to describe the relationships among transfer charges, voltage, current, and average output power in terms of material properties, hybrid generator structural parameters, harvesting, and operational conditions. New hybrid generators with much enhanced piezoelectricity are fabricated via a simple, room‐temperature, cost‐effective route by using nonwoven fabrics made from electrospun Polyvinyledenedifluoride‐trifluoroethylene (PVDF‐TrFE)/Ag nanowire nanofibers and Polydimethylsiloxane (PDMS) composites with graphite nanoparticles. The results provide a powerful tool for synthesis and selection of materials, design and optimization of the configuration, and operation of such kind of hybrid generators as well as determination of the value of external capacitor.