Electrochemical humidity sensor enabled self-powered wireless humidity detection system

Nano Energy, Journal Year: 2023, Volume and Issue: 115, P. 108745 - 108745

Published: July 31, 2023

Language: Английский

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Electrochemical power generation humidity sensor based on WS2 nanoflakes

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 405, P. 135325 - 135325

Published: Jan. 11, 2024

Language: Английский

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Electrochemical self-powered strain sensor for static and dynamic strain detections

Nano Energy, Journal Year: 2023, Volume and Issue: 118, P. 108997 - 108997

Published: Oct. 17, 2023

Language: Английский

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ZnO@Ti₃C₂T_x MXene Hybrid Composite-Based Schottky-Barrier-Coated SAW Sensor for Effective Detection of Sub-ppb-Level NH₃ at Room Temperature under UV Illumination

ACS Materials Letters, Journal Year: 2023, Volume and Issue: 5(10), P. 2739 - 2746

Published: Sept. 8, 2023

Smart sensors capable of detecting NH3 at sub-ppb levels are important for human health in our daily life. Here, we demonstrate a surface acoustic wave (SAW) sensor based on ZnO@MXene hybrid heterostructure ultrahigh gas detection under UV illumination room temperature (RT). Under illumination, the SAW not only significantly enhances frequency response (Δf ≈ 32.24 kHz/20 ppm) but also effectively improves selectivity with low limit (89.41 ppb), short response/recovery times (92/104 s), long-term stability, and robust sensitivity various relative humidity conditions (dark) to RT. These unique sensing properties might be attributed enriched functional groups, oxygen vacancies, excellent charge transfer Schottky barrier via band bending, which is explained using an energy theory mechanism. Overall, current study offers strategic insights designing light-activated high-performance SAW-based RT safety assurance environmental monitoring.

Language: Английский

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High-performance electrochemical power generation humidity sensor based on NaCl/sodium alginate humidity sensing electrolyte and Cu/Zn electrodes for visual humidity indication and respiratory patterns detection

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 409, P. 135585 - 135585

Published: March 4, 2024

Language: Английский

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Emerging electrochemical humidity sensors for zero power consumption and self-powered humidity detection: a perspective

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(25), P. 14975 - 14985

Published: Jan. 1, 2024

This perspective summarizes recent advances in electrochemical humidity sensors and mainly focuses on three aspects: working principles; sensing power generation performances; self-powered detection system.

Language: Английский

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Polydopamine-modified MXene/cellulose nanofibers composite film for self-powered humidity sensing and humidity actuating

Nano Energy, Journal Year: 2024, Volume and Issue: 123, P. 109445 - 109445

Published: March 3, 2024

Language: Английский

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A skin-conformal and breathable humidity sensor for emotional mode recognition and non-contact human-machine interface

npj Flexible Electronics, Journal Year: 2024, Volume and Issue: 8(1)

Published: Jan. 6, 2024

Abstract Noncontact humidity sensor overcomes the limitations of its contact sensing counterparts, including mechanical wear and cross infection, which becomes a promising candidate in healthcare human-machine interface application. However, current sensors still suffer ubiquitous issue uncomfortable skin irritation hindering long-term use. In this study, we report skin-conformal breathable assembled by anchoring MXenes-based composite into electrospun elastomer nanofibers coated with patterned electrode. This is highly sensitive to water molecules due large specific surface area abundant water-absorbing hydroxyl groups, while elastomeric provide an ultrathin, flexible, permeable substrate support functional materials electrodes. presents not only excellent air permeability (0.078 g cm −2 d −1 ), high sensitivity ( S = 704), fast response/recovery (0.9 s/0.9 s), but also conformability biocompatibility. Furthermore, confirmed realize recognition motional states emotional modes, provides way for advanced noncontact interface.

Language: Английский

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Sandwich-Like Flexible Breathable Strain Sensor with Tunable Thermal Regulation Capability for Human Motion Monitoring

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(8), P. 10633 - 10645

Published: Feb. 17, 2024

High-performance flexible strain sensors with synergistic and outstanding thermal regulation function are poised to make a significant impact on next-generation multifunctional sensors. However, it has long been intractable optimize the sensing performance high conductivity simultaneously. Herein, novel sandwich-like sensor advanced capability was prepared by assembling electrospun thermoplastic polyurethane (TPU) fibrous membrane, MXene layer, TPU/boron nitride nanosheet (BNNS) composite films. The as-prepared demonstrates wide working range (∼100% strain), an ultrahigh gauge factor (2080.9), satisfactory reliability. Meanwhile, benefiting from uniform dispersion promising orientation of BNNSs in TPU composites, possesses 1.5 W·m–1·K–1, guaranteeing wearer comfort. Additionally, unique structure endows stretchability, breathability, biocompatibility, tunable electromagnetic interference shielding performances. Furthermore, integrated wireless motion monitoring device based this is rationally designed. It exhibits fast response time, recognition range, ability maintain skin temperature during prolonged physical activity. These encouraging findings provide new feasible approach designing high-performance versatile broad applications wearable technology.

Language: Английский

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Wet Spinning Fabrication of Robust and Uniform Intrinsically Conductive Cellulose Nanofibril/Silk Conductive Fibers as Bifunctional Strain/Humidity Sensor in Potential Smart Dressing

Advanced Fiber Materials, Journal Year: 2024, Volume and Issue: 6(4), P. 993 - 1007

Published: April 9, 2024

Language: Английский

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