Cube shaped FAPbBr3 for piezoelectric energy harvesting devices

Paul, Tufan; Maiti, Soumen; Mukherjee, Upasana; Mondal, Suvankar; Sahoo, Aditi; Chattopadhyay, Kalyan Kumar

doi:10.1016/j.matlet.2021.130264

Cited by 19 publications

(10 citation statements)

References 8 publications

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“…Several semiconductors like ZnO, CdS, GaN, ZnS, etc. − exhibit piezoelectric properties. Numerous ceramic materials like lead zirconate titanate (PZT), various perovskites such as BaTiO 3 , ZnSnO 3 , MAPbX 3 , FAPbI 3 , etc., − and polymers (PVDF, PVDF-TrFE, PVDF-HFP, PDMS, etc.) also show a strong piezoelectric effect. ,− But most of them are not flexible, but rather brittle and toxic, making them inappropriate for device fabrication.…”

Section: Introductionmentioning

confidence: 99%

Self-Charging Piezo-Supercapacitor: One-Step Mechanical Energy Conversion and Storage

Mondal

Thakur

Maiti³

et al. 2023

ACS Appl. Mater. Interfaces

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With the contemplations of ecological and environmental issues related to energy harvesting, piezoelectric nanogenerators (PNGs) may be an accessible, sustainable, and abundant elective wellspring of energy in the future. The PNGs’ power output, however, is dependent on the mechanical energy input, which will be intermittent if the mechanical energy is not continuous. This is a fatal flaw for electronics that need continuous power. Here, a self-charging flexible supercapacitor (PSCFS) is successfully realized that can harvest sporadic mechanical energy, convert it to electrical energy, and simultaneously store power. Initially, chemically processed multimetallic oxide, namely, copper cobalt nickel oxide (CuCoNiO4) is amalgamated within the poly(vinylidene fluoride) (PVDF) framework in different wt % to realize high-performance PNGs. The combination of CuCoNiO4 as filler creates a notable electroactive phase inside the PVDF matrix, and the composite realized by combining 1 wt % CuCoNiO4 with PVDF, coined as PNCU 1, exhibits the highest electroactive phase (>86%). Under periodic hammering (∼100 kPa), PNGs fabricated with this optimized composite film deliver an instantaneous voltage of ∼67.9 V and a current of ∼4.15 μA. Furthermore, PNG 1 is ingeniously integrated into a supercapacitor to construct PSCFS, using PNCU 1 as a separator and CuCoNiO4 nanowires on carbon cloth (CC) as the positive and negative electrodes. The self-charging behavior of the rectifier-free storage device was established under bending deformation. The PSCFS device exhibits ∼845 mV from its initial open-circuit potential ∼35 mV in ∼220 s under periodic bending of 180° at a frequency of 1 Hz. The PSCFS can power up various portable electronic appliances such as calculators, watches, and LEDs. This work offers a high-performance, self-powered device that can be used to replace bulky batteries in everyday electronic devices by harnessing mechanical energy, converting mechanical energy from its environment into electrical energy.

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Section: Introductionmentioning

confidence: 99%

Self-Charging Piezo-Supercapacitor: One-Step Mechanical Energy Conversion and Storage

Mondal

Thakur

Maiti³

et al. 2023

ACS Appl. Mater. Interfaces

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“…Mechanical and solar energy sources are recognized as the most popular renewable sources due to their accessibility and sustainability. Halide perovskites are versatile materials that have been extensively used in many applications, such as solar cells, − resistive memory systems, , sensors, , lasers, , lithium-ion batteries, , nanogenerators, − and so on. Halide perovskites are suitable candidates in the aforementioned fields due to their excellent optoelectronic properties, which include low exciton binding energies, strong optical absorption, low trap states, direct radiative recombination, high charge carrier mobility, and a tunable optical band gap in the visible region .…”

Section: Introductionmentioning

confidence: 99%

Halide Tunablility Leads to Enhanced Biomechanical Energy Harvesting in Lead-Free Cs₂SnX₆-PVDF Composites

Paul

Sahoo

Maiti³

et al. 2023

ACS Appl. Mater. Interfaces

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The main challenges impeding the widespread use of organic−inorganic lead halide perovskites in modern-day technological devices are their long-term instability and lead contamination. Among other environmentally convivial and sustainable alternatives, Cs 2 SnX 6 (X = Cl, Br, and I) compounds have shown promise as ambient-stable, lead-free materials for energy harvesting, and optoelectronic applications. Additionally, they have demonstrated tremendous potential for the fabrication of self-powered nanogenerators in conjunction with piezoelectric polymers like polyvinylidene-fluoride (PVDF). We report on the fabrication of composites constituting solvothermally synthesized Cs 2 SnX 6 nanostructures and PVDF. The electroactive phases in PVDF were boosted by the incorporation of Cs 2 SnX 6 , leading to enhanced piezoelectricity in the composites. First-principles density functional theory (DFT) studies were carried out to understand the interfacial interaction between the Cs 2 SnX 6 and PVDF, which unravels the mechanism of physisorption between the perovskite and PVDF, leading to enhanced piezoresponse. The halide ions in the inorganic Cs 2 SnX 6 perovskites were varied systematically, and the piezoelectric behaviors of the respective piezoelectric nanogenerators (PENGs) were investigated. Further, the dielectric properties of these halide perovskite-based hybrids are quantified, and their piezoresponse amplitude, piezoelectric output signals, and charging capacity are also evaluated. Out of the several films fabricated, the optimized Cs 2 SnI 6 _PVDF film shows a piezoelectric coefficient (d 33 ) value of ∼200 pm V −1 and a remanent polarization of ∼0.74 μC cm −2 estimated from piezoresponse force microscopy and polarization hysteresis loop measurement, respectively. The optimized Cs 2 SnI 6 _PVDF-based device produced an instantaneous output voltage of ∼167 V, a current of ∼5.0 μA, and a power of ∼835 μW across a 5 MΩ resistor when subjected to periodic vertical compression. The output voltage of this device is used to charge a capacitor with a 10 μF capacitance up to 2.2 V, which is then used to power some commercial LEDs. In addition to being used as a pressure sensor, the device is employed to monitor human physiological activities. The device demonstrates excellent operational durability over a span of several months in an ambient environment vouching for its exceptional potential in application to mechanical energy harvesting and pressure sensing applications.

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“…39,40 Most previously documented approaches for making perovskite-PVDF composites are impeded by the physical mixing approach, which frequently results in aggregation in the polymer matrix leading to reduced interfacial interaction between the constituents. 41 In situ strategies, on the other hand, provide good dispersion and distribution of the constituent elements in the composite. Direct integration of a well-dispersed nanostructure into a polymer matrix is also possible using these approaches.…”

Section: Introductionmentioning

confidence: 99%

Preferential perovskite surface-termination induced high piezoresponse in lead-free in situ fabricated Cs₃Bi₂Br₉-PVDF nanocomposites promotes biomechanical energy harvesting

Sahoo¹,

Paul²,

Nath³

et al. 2023

Nanoscale

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Cube shaped FAPbBr3 for piezoelectric energy harvesting devices

Cited by 19 publications

References 8 publications

Self-Charging Piezo-Supercapacitor: One-Step Mechanical Energy Conversion and Storage

Self-Charging Piezo-Supercapacitor: One-Step Mechanical Energy Conversion and Storage

Halide Tunablility Leads to Enhanced Biomechanical Energy Harvesting in Lead-Free Cs₂SnX₆-PVDF Composites

Preferential perovskite surface-termination induced high piezoresponse in lead-free in situ fabricated Cs₃Bi₂Br₉-PVDF nanocomposites promotes biomechanical energy harvesting

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Cube shaped FAPbBr3 for piezoelectric energy harvesting devices

Cited by 19 publications

References 8 publications

Self-Charging Piezo-Supercapacitor: One-Step Mechanical Energy Conversion and Storage

Self-Charging Piezo-Supercapacitor: One-Step Mechanical Energy Conversion and Storage

Halide Tunablility Leads to Enhanced Biomechanical Energy Harvesting in Lead-Free Cs2SnX6-PVDF Composites

Preferential perovskite surface-termination induced high piezoresponse in lead-free in situ fabricated Cs3Bi2Br9-PVDF nanocomposites promotes biomechanical energy harvesting

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Halide Tunablility Leads to Enhanced Biomechanical Energy Harvesting in Lead-Free Cs₂SnX₆-PVDF Composites

Preferential perovskite surface-termination induced high piezoresponse in lead-free in situ fabricated Cs₃Bi₂Br₉-PVDF nanocomposites promotes biomechanical energy harvesting