Multifunctional Lead-Free Halide Perovskite Based Poly(vinylidene fluoride) Composites for Biomechanical Energy Harvesting and Self-Powered Piezo-Optoelectronic Applications DOI
Suvankar Mondal,

Monika Salesh,

Urosa Latief

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Март 14, 2025

Lead-free halide perovskite (LFHP) materials have recently received a lot of attention in optoelectronic applications due to their low toxicity and outstanding optical characteristics. Simultaneously, the increased thrust for flexible, wearable, lightweight devices is driving improvements sensor actuator technology. In this context, flexible piezoelectric polymer composites based on LFHPs are gaining popularity exceptional piezoelectric, pyroelectric, ferroelectric, traits. Thus, investigation presents long-term stable lead-free rubidium copper chloride (Rb2CuCl3)-based poly(vinylidene fluoride) composites. The optimized PVDF/Rb2CuCl3 composite yields ∼92.4% electroactive phase PVDF. Interfacial interactions between PVDF Rb2CuCl3 played pivotal role β-phase transformation, resulting improved stability. A nanogenerator (PENG) has been fabricated employing mechanical energy harvesting biophysiological motion monitoring, demonstrating potential healthcare industry. Piezoelectric Energy Harvester (PEH) with PRCC_2.5 (PVDF 2.5 wt % Rb2CuCl3) outperformed other composites, maximum open-circuit voltage (Voc) ∼51.7 V short-circuit current (Isc) ∼4.6 μA. pristine PVDF-based device (PEH 0) had inferior performance, Voc ∼12 an Isc ∼0.5 PEH exhibited charge ∼126 nC, which far higher than 0 corresponding was ∼7 nC. Furthermore, during periodic application force ∼5 N, stability durability were evaluated. 10,250 compression cycles used measure electrical output device. Remarkably, following cycles, there no discernible drop (∼16 V). addition, photodetector developed investigate piezo-phototronic effect, displaying quick photoswitching behavior rise decay periods ∼3.22 ∼5.48 s, respectively. These findings demonstrate that significant as signal-modulated piezoresponsive wearable sensor.

Язык: Английский

Flexible Piezoelectric Nanogenerator as a Self-charging Piezo-supercapacitor for Energy Havesting and Storage Application DOI

Tupan Das,

S. Tripathy,

Amod Kumar

и другие.

Nano Energy, Год журнала: 2025, Номер unknown, С. 110752 - 110752

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

3
Exploring the dielectric properties of herbal medicine and modern pharmaceuticals: an integrative review DOI Creative Commons
Vishal Khatri, Pranab Dey

Frontiers in Pharmacology, Год журнала: 2025, Номер 15

Опубликована: Янв. 15, 2025

The integration of herbal medicine with modern pharmaceuticals offers a novel approach to addressing complex healthcare challenges. This study investigates the role dielectric spectroscopy in analysing key physicochemical properties such as solubility, stability, and molecular interactions. findings reveal that combining extracts pharmaceutical agents enhances solubility stability. It also reduces adverse effects, improving therapeutic efficacy. Dielectric is highlighted powerful analytical tool this process. demonstrates how traditional knowledge can be effectively linked scientific methods. enables development innovative solutions address safety efficacy results underline potential advanced techniques ethnopharmacological practices. paves way for creation safe, effective, scientifically validated formulations improved outcomes.

Язык: Английский

Процитировано

0
Poly (lactic acid)-Based Triboelectric Nanogenerators: Pathways Toward Sustainable Energy Harvesting DOI Creative Commons

Kariyappa Gowda Guddenahalli Shivanna,

Vishnu Kadabahalli Thammannagowda,

Smitha Ankanahalli Shankaregowda

и другие.

Hybrid Advances, Год журнала: 2025, Номер unknown, С. 100395 - 100395

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Multifunctional Lead-Free Halide Perovskite Based Poly(vinylidene fluoride) Composites for Biomechanical Energy Harvesting and Self-Powered Piezo-Optoelectronic Applications DOI
Suvankar Mondal,

Monika Salesh,

Urosa Latief

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Март 14, 2025

Lead-free halide perovskite (LFHP) materials have recently received a lot of attention in optoelectronic applications due to their low toxicity and outstanding optical characteristics. Simultaneously, the increased thrust for flexible, wearable, lightweight devices is driving improvements sensor actuator technology. In this context, flexible piezoelectric polymer composites based on LFHPs are gaining popularity exceptional piezoelectric, pyroelectric, ferroelectric, traits. Thus, investigation presents long-term stable lead-free rubidium copper chloride (Rb2CuCl3)-based poly(vinylidene fluoride) composites. The optimized PVDF/Rb2CuCl3 composite yields ∼92.4% electroactive phase PVDF. Interfacial interactions between PVDF Rb2CuCl3 played pivotal role β-phase transformation, resulting improved stability. A nanogenerator (PENG) has been fabricated employing mechanical energy harvesting biophysiological motion monitoring, demonstrating potential healthcare industry. Piezoelectric Energy Harvester (PEH) with PRCC_2.5 (PVDF 2.5 wt % Rb2CuCl3) outperformed other composites, maximum open-circuit voltage (Voc) ∼51.7 V short-circuit current (Isc) ∼4.6 μA. pristine PVDF-based device (PEH 0) had inferior performance, Voc ∼12 an Isc ∼0.5 PEH exhibited charge ∼126 nC, which far higher than 0 corresponding was ∼7 nC. Furthermore, during periodic application force ∼5 N, stability durability were evaluated. 10,250 compression cycles used measure electrical output device. Remarkably, following cycles, there no discernible drop (∼16 V). addition, photodetector developed investigate piezo-phototronic effect, displaying quick photoswitching behavior rise decay periods ∼3.22 ∼5.48 s, respectively. These findings demonstrate that significant as signal-modulated piezoresponsive wearable sensor.

Язык: Английский

Процитировано

0