Piezo-tribo nanoenergy harvester using hybrid polydimethyl siloxane based nanocomposite

Karumuthil, Subash Cherumannil; Rajeev, Sreenidhi Prabha; Varghese, Soney

doi:10.1016/j.nanoen.2017.08.052

Cited by 55 publications

(23 citation statements)

References 34 publications

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“…The piezoelectric activity of nHA loaded composites can be explained on the basis of dipole alignment within the matrix. On applying a force, deformation occurs to the dipoles generated by the interfacial polarization between the matrix and nHA 47,49 . This generates a potential with positive amplitude between the two electrodes of the device.…”

Section: Resultsmentioning

confidence: 99%

Nanohydroxyapatite embedded blends of ethylene‐co‐vinyl acetate and millable polyurethane as piezoelectric materials: dielectric, viscoelastic and mechanical features

Shafeeq

Karumuthil

Varghese

et al. 2020

Polymer International

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We report the piezoelectric, dielectric and dynamic mechanical features of nanohydroxyapatite (nHA) embedded ethylene-covinyl acetate (EVA)/millable polyurethane (MPU) elastomer blends. The EVA/MPU/nHA systems were prepared by two-roll milling followed by compression moulding. The piezoelectric features were probed by dynamic contact electrostatic force microscopy (EFM).The neat EVA/MPU blend was not found to exhibit ferroelectric properties. However, upon incorporation of nHA, butterfly loops of EFM amplitude signals as well as complementary hysteresis curves were obtained, confirming the introduction of ferropiezoelectric properties. The ferro-piezoelectric features were found to be improved with an increase in nHA loading which recorded highest signals for 8 parts per hundred parts of rubber (phr) loaded composites. The fabricated devices generated a peak voltage of 4.02 V and 4.89 V respectively with 6 phr and 8 phr nHA loaded composites. Electrical properties such as dielectric constant, volume resistivity and loss factor as well as dynamic mechanical properties were examined. The viscoelastic features of the systems support the reinforcing feature with filler loading. TEM analysis of the composites indicated a uniform distribution of filler particles in the blend matrix, complementing the observed ferro-piezoelectric, dielectric and dynamic mechanical properties. The simultaneous modulation of piezoelectric and viscoelastic properties is a preferred feature for fast-responsive dielectric elastomers for their applications in various piezoelectric devices.

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Section: Resultsmentioning

confidence: 99%

Nanohydroxyapatite embedded blends of ethylene‐co‐vinyl acetate and millable polyurethane as piezoelectric materials: dielectric, viscoelastic and mechanical features

Shafeeq

Karumuthil

Varghese

et al. 2020

Polymer International

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“…FSR is used along with an open-source electronics platform Arduino UNO which is run by an open source IDE software (Version 1.8.5). 38 Based on the change in resistance value of the FSR under an applied force, the serial monitor registers the categorized stress as light, medium or high. The qualitative study reveals that as the categorized stress increases from light to high through medium output voltage increases from 7.5 V to 12.4 V through 8.7 V, respectively, as shown in Figure 7(b).…”

Section: Resultsmentioning

confidence: 99%

α- & β-crystalline phases in polyvinylidene fluoride as tribo-piezo active layer for nanoenergy harvester

Rajeev

Sabarinath²,

Subash

et al. 2018

High Performance Polymers

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The manuscript introduces the use of non-electrically polled spin-coated thin polyvinylidene fluoride (PVDF) films as the active layers in a contact electrification-based nanoenergy harvester. The four-layered device utilizes both piezo and triboelectric effect coupled with electrostatic induction. The elucidation of potential generation during contact between crystalline phases ( α and β) of PVDF layer material is investigated in the manuscript. Fourier transform infrared–attenuated total reflectance spectroscopy is carried out to illustrate the α- and β-phases in PVDF pellet, prepared film as well as the film after contact. Dynamic contact mode electrostatic force microscopy (DC-EFM) along with atomic force microscopy is used for the evaluation of reverse piezoelectric, local ferroelectric, triboelectric voltage and adhesive energy of the PVDF films before–after contact process. Quantum chemical calculation is performed using density functional theory to explain possible electron transitions in the active layers between the cylindrically symmetric α-phase and electrical double layer charges in the β-phase of PVDF. The interface study of the film is also carried out both experimentally using DC-EFM and through quantum chemical calculations. The fabricated device with the hybrid piezo-tribo layer promises to be a simple and low-cost energy source for the next-generation self-powered electronic devices. The device can also be used as knock sensor in engines as well as a capacitor.

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“…The formulation of nanogenerator often involves both piezoelectric polarization and triboelectric charges. The tribo-piezoelectric phenomenon is demonstrated by Karumuthil et al, where they have taken the poly dimethyl siloxane-based hybrid nanocomposite 8 and have reported enhanced current characteristics with improved mechanical to electrical energy conversion efficiency. Energy conversion efficacy can also be improved by incorporating an additional layer 21 of nanomaterial between the electrodes and their substrates in a nanogenerator.…”

Section: Introductionmentioning

confidence: 94%

“…In a nanogenerator, electrical energy can be attained from mechanical or thermal energy by small-scale physical changes. Two lucrative ways to form a nanogenerator are the consideration of the piezoelectric 8 , 10 – 12 and triboelectric 8 , 13 – 16 effects. When mechanical deformation is enforced on semiconductor materials, polarized charge is generated via the piezoelectric effect.…”

Section: Introductionmentioning

confidence: 99%

Strong tribo-piezoelectric effect in bilayer indium nitride (InN)

Islam

Zamil

Mojumder

et al. 2021

Sci Rep

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The high electronegativity between the atoms of two-dimensional (2D) group-III nitrides makes them attractive to demonstrating a strong out-of-plane piezo-electricity effect. Energy harvesting devices can be predicted by cultivating such salient piezoelectric features. This work explores the tribo-piezoelectric properties of 2D-indium nitride (InN) as a promising candidate in nanogenerator applications by means of first-principles calculations. In-plane interlayer sliding between two InN monolayers leads to a noticeable rise of vertical piezoelectricity. The vertical resistance between the InN bilayer renders tribological energy by the sliding effect. During the vertical sliding, a shear strength of 6.6–9.7 GPa is observed between the monolayers. The structure can be used as a tribo-piezoelectric transducer to extract force and stress from the generated out-of-plane tribo-piezoelectric energy. The A–A stacking of the bilayer InN elucidates the highest out-of-plane piezoelectricity. Any decrease in the interlayer distance between the monolayers improves the out-of-plane polarization and thus, increases the inductive voltage generation. Vertical compression of bilayer InN produces an inductive voltage in the range of 0.146–0.196 V. Utilizing such a phenomenon, an InN-based bilayer compression-sliding nanogenerator is proposed, which can tune the generated tribo-piezoelectric energy by compressing the interlayer distance between the InN monolayers. The considered model can render a maximum output power density of ~ 73 mWcm−2 upon vertical sliding.

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Piezo-tribo nanoenergy harvester using hybrid polydimethyl siloxane based nanocomposite

Cited by 55 publications

References 34 publications

Nanohydroxyapatite embedded blends of ethylene‐co‐vinyl acetate and millable polyurethane as piezoelectric materials: dielectric, viscoelastic and mechanical features

Nanohydroxyapatite embedded blends of ethylene‐co‐vinyl acetate and millable polyurethane as piezoelectric materials: dielectric, viscoelastic and mechanical features

α- & β-crystalline phases in polyvinylidene fluoride as tribo-piezo active layer for nanoenergy harvester

Strong tribo-piezoelectric effect in bilayer indium nitride (InN)

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