A flexible piezoresistive strain sensor based on black phosphorus/gold nanocomposites interspersed sponge for motion sensing

Jiang, Hai; Zhang, Jing; Qin, Mei; Zhang, Jiabo; Zou, Xintao; Weng, Xuan

doi:10.1016/j.sna.2023.114359

Cited by 8 publications

(2 citation statements)

References 57 publications

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“…These flexible substrate materials can be applied to various types of flexible strain sensors due to their good scalability and biocompatibility, meeting the needs of the development of flexible strain sensors towards miniaturization, integration, and intelligence. The conductive materials of the flexible strain sensors have also been researched, and a variety of new nano conductive materials have been developed, such as carbon nanotubes [ 12 , 13 ], metal nanowire, graphene [ 14 , 15 ], and other solid conductive materials [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

A High-Performance Strain Sensor for the Detection of Human Motion and Subtle Strain Based on Liquid Metal Microwire

Zhu,

Sun,

Wang

et al. 2024

Nanomaterials

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Flexible strain sensors have a wide range of applications, such as human motion monitoring, wearable electronic devices, and human–computer interactions, due to their good conformability and sensitive deformation detection. To overcome the internal stress problem of solid sensing materials during deformation and prepare small-sized flexible strain sensors, it is necessary to choose a more suitable sensing material and preparation technology. We report a simple and high-performance flexible strain sensor based on liquid metal nanoparticles (LMNPs) on a polyimide substrate. The LMNPs were assembled using the femtosecond laser direct writing technology to form liquid metal microwires. A wearable strain sensor from the liquid metal microwire was fabricated with an excellent gauge factor of up to 76.18, a good linearity in a wide sensing range, and a fast response/recovery time of 159 ms/120 ms. Due to these extraordinary strain sensing performances, the strain sensor can monitor facial expressions in real time and detect vocal cord vibrations for speech recognition.

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Section: Introductionmentioning

confidence: 99%

A High-Performance Strain Sensor for the Detection of Human Motion and Subtle Strain Based on Liquid Metal Microwire

Zhu,

Sun,

Wang

et al. 2024

Nanomaterials

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“…The sensing material is composed of a conductive material and a flexible substrate. At this stage of the study, researchers have broadly classified the conductive materials into three main groups: metallic nanomaterials (such as silver nanowires and phosphorene-gold nanocomposites), carbon materials (like graphene, , carbon nanotubes, − and MXene , ), and conductive polymers (such as polypyrrole and polyaniline). Carbon nanotubes (CNTs) have garnered interest for their electrical conductivity, thermal stability, and high toughness, making them a popular choice for a conductive material in piezoresistive sensors.…”

Section: Introductionmentioning

confidence: 99%

Wearable and Cost-Effective Pressure Sensor Based on a Carbon Nanotube/Polyurethane Sponge for Motion Detection and Gesture Recognition

Wang,

Zhang,

Song

et al. 2023

ACS Appl. Electron. Mater.

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Uniform Synthesis of Bilayer Hydrogen Substituted Graphdiyne for Flexible Piezoresistive Applications

Josline,

Ghods,

Kosame

et al. 2024

Small

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Graphdiyne (GDY) has garnered significant attention as a cutting‐edge 2D material owing to its distinctive electronic, optoelectronic, and mechanical properties, including high mobility, direct bandgap, and remarkable flexibility. One of the key challenges hindering the implementation of this material in flexible applications is its large area and uniform synthesis. The facile growth of centimeter‐scale bilayer hydrogen substituted graphdiyne (Bi‐HsGDY) on germanium (Ge) substrate is achieved using a low‐temperature chemical vapor deposition (CVD) method. This material's field effect transistors (FET) showcase a high carrier mobility of 52.6 cm2 V−1 s−1 and an exceptionally low contact resistance of 10 Ω µm. By transferring the as‐grown Bi‐HsGDY onto a flexible substrate, a long‐distance piezoresistive strain sensor is demonstrated, which exhibits a remarkable gauge factor of 43.34 with a fast response time of ≈275 ms. As a proof of concept, communication by means of Morse code is implemented using a Bi‐HsGDY strain sensor. It is believed that these results are anticipated to open new horizons in realizing Bi‐HsGDY for innovative flexible device applications.

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A flexible piezoresistive strain sensor based on black phosphorus/gold nanocomposites interspersed sponge for motion sensing

Cited by 8 publications

References 57 publications

A High-Performance Strain Sensor for the Detection of Human Motion and Subtle Strain Based on Liquid Metal Microwire

A High-Performance Strain Sensor for the Detection of Human Motion and Subtle Strain Based on Liquid Metal Microwire

Wearable and Cost-Effective Pressure Sensor Based on a Carbon Nanotube/Polyurethane Sponge for Motion Detection and Gesture Recognition

Uniform Synthesis of Bilayer Hydrogen Substituted Graphdiyne for Flexible Piezoresistive Applications

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