Design, Fabrication, and Application of Large-Area Flexible Pressure and Strain Sensor Arrays: A Review

Micromachines, Journal Year: 2025, Volume and Issue: 16(3), P. 330 - 330

Published: March 12, 2025

The rapid development of flexible sensor technology has made arrays a key research area in various applications due to their exceptional flexibility, wearability, and large-area-sensing capabilities. These can precisely monitor physical parameters like pressure strain complex environments, making them highly beneficial for sectors such as smart wearables, robotic tactile sensing, health monitoring, electronics. This paper reviews the fabrication processes, operational principles, common materials used sensors, explores application different materials, outlines two conventional preparation methods. It also presents real-world examples large-area arrays. Fabrication techniques include 3D printing, screen laser etching, magnetron sputtering, molding, each influencing performance ways. Flexible sensors typically operate based on resistive capacitive mechanisms, with structural designs (e.g., sandwich fork-finger) affecting integration, recovery, processing complexity. careful selection materials—especially substrates, electrodes, sensing materials—is crucial efficacy. Despite significant progress design application, challenges remain, particularly mass production, wireless real-time data processing, long-term stability. To improve production feasibility, optimizing reducing material costs, incorporating automated lines are essential scalability defect reduction. For enhancing energy efficiency through low-power communication protocols addressing signal interference stability critical seamless operation. Real-time requires innovative solutions edge computing machine learning algorithms, ensuring low-latency, high-accuracy interpretation while preserving flexibility Finally, environmental adaptability demands new protective coatings withstand harsh conditions. Ongoing overcoming these challenges, that meet needs diverse remaining cost-effective reliable.

Language: Английский

Strain-Modulated Deposition Mechanism on a Flexible Zinc Anode

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Flexible aqueous zinc-ion batteries (AZIBs) are considered one of the most attractive flexible devices owing to their high theoretical capacity, low cost, and security. However, formation Zn dendrites poor flexibility material greatly impede application wearable AZIBs. Herein, by transferring graphene onto surface polyethylene terephthalate-indium tin oxide (PET-ITO-G), a substrate combining excellent dendrite suppression ability was prepared. Meanwhile, quantitative in situ strain system proposed investigate electrochemical morphological characteristics anode interface. The plating/stripping performance Zn|PET-ITO-G device demonstrated under various strains. Subsequent analysis indicated that origin its stability static bending came from densely packed (101) upon cycling. In addition, PET-ITO-G could quickly recover (002) after relieved. A failure model strain-modulated deposition based on cracks distorted current distribution. This work identified main factors constrained long cycling life metal provided feasible approach for systematic study influence batteries.

Language: Английский

Application of Laser-Induced Graphene Flexible Sensor in Monitoring Large Deformation of Reinforced Concrete Structure

Sensors, Journal Year: 2024, Volume and Issue: 24(23), P. 7444 - 7444

Published: Nov. 21, 2024

When cracks appear in reinforced concrete (RC) structures, the tensile load will be borne by steel bars with high ductility, resulting a large deformation. Traditional strain sensors have difficulties achieving good performance for deformations structures. In this paper, based on laser-induced graphene (LIG) technique, flexible sensor is proposed monitoring of Polyimide film used as carbon precursor to prepare LIG through laser scanning and then transferred onto polydimethylsiloxane (PDMS) substrate form sensor. The calibration verification are completed tests. applicability verified beam bending experiments. fatigue resistance tests full-scale beam. experimental results showed that has advantages low cost, simple preparation, stable performance, making it suitable applications field deformation RC

Language: Английский