Mechanical energy harvesting based on the piezoelectric materials: Recent advances and future perspectives

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154249 - 154249

Published: July 30, 2024

Language: Английский

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Computational investigation of the perylene-TCNQ complex: effects of chalcogen and fluorine substitutions

Journal of Molecular Modeling, Journal Year: 2025, Volume and Issue: 31(2)

Published: Jan. 22, 2025

Language: Английский

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Homochirality-Induced Piezoelectricity in a Single-Component Molecular System

Crystal Growth & Design, Journal Year: 2024, Volume and Issue: 24(16), P. 6763 - 6770

Published: Aug. 1, 2024

Organic piezoelectric materials have recently garnered significant attention as potential alternatives to ceramics. However, there are only a handful of reports on single-component molecular crystals exhibiting properties. Introducing homochirality is one the simplest approaches achieving piezoelectricity in crystals. Herein, we present an enantiomeric pair compounds (R)-2-(((1-(p-tolyl)ethyl)imino)methyl)phenol (RPTIMP) and (S)-2-(((1-(p-tolyl)ethyl)imino)methyl)phenol (SPTIMP) crystallizing noncentrosymmetric P212121 space group making them suitable for studies In contrast, racemic mixture these compounds, Rac-2-(((1-(p-tolyl)ethyl)imino)methyl)phenol (RacPTIMP), crystallizes centrosymmetric P21/n group. The noncentrosymmetry both RPTIMP SPTIMP was confirmed through second harmonic generation (SHG) measurements, showing SHG efficiencies 0.11 0.12, respectively, relative standard potassium dihydrogen phosphate (KDP). Piezoelectric coefficient (d33) measurements powder-pressed pellet resulted d33 value 4.7 pC N–1. energy harvesting experiments performed poled thermoplastic polyurethane (TPU) composite films maximum voltage output 7.04 V 15 wt % SPTIMP-TPU device. storage efficacy also tested by successfully charging 10 μF capacitor within 100 s using best-performing

Language: Английский

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Flexible Piezoelectric-Coupling Organic Transistor-Based Press Sensors with Ferroelectric Charge-Transfer Complex Integrated Dielectrics

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: 6(10), P. 7170 - 7178

Published: Oct. 9, 2024

The development of flexible tactile sensors is critical for wearable electronics and human–computer interfaces. porous structure floating gate strategy in organic transistors are not easy to control usually lead a relatively large detection limit. To overcome these issues, effectively combining the piezoelectric effect into simple way enhances capacitance sensing amplifies readout characteristics. In this paper, solution-processed transistor-based pressure were fabricated by using polar charge-transfer complex/dielectric polymer blend solutions. hybrid dielectrics integrate well-distributed ferroelectric micro-/nanoparticles via tuning doping ratio exhibit good insulating property. devices presented sensitivity 3.2 kPa–1, durability, low limit 0.01 kPa. Moreover, successfully introduced build sensor-robotic system, switch, haptic array keyboard. well-integrated dielectric design method provides powerful construct with great potential.

Language: Английский

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Mechanical energy harvesting: From piezoelectric effect to ferroelectric/ferroelastic switching

Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110489 - 110489

Published: Nov. 1, 2024

Language: Английский

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