A Self‐Powered Portable Nanowire Array Gas Sensor for Dynamic NO₂ Monitoring at Room Temperature

Advanced Materials, Journal Year: 2022, Volume and Issue: 35(12)

Published: Dec. 11, 2022

The fast development of the Internet Things (IoT) has driven an increasing consumer demand for self-powered gas sensors real-time data collection and autonomous responses in industries such as environmental monitoring, workplace safety, smart cities, personal healthcare. Despite intensive research rapid progress field, most reported devices, specifically NO2 air pollution have limited sensitivity, selectivity, scalability. Here, a novel photovoltaic sensor is demonstrated based on axial p-i-n homojunction InP nanowire (NW) arrays, that overcome these limitations. optimized innovative NW array device designed by numerical simulation insights into sensing mechanisms performance enhancement. Without power source, this achieves 84% response to 1 ppm records limit detection down sub-ppb level, with little dependence incident light intensity, even under <5% sun illumination. Based great fidelity, integrated commercial microchip interface evaluate its context dynamic monitoring motor vehicle exhaust. results show compound semiconductor nanowires can form promising platforms suitable future mega-scale IoT systems.

Language: Английский

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Room temperature triethylamine gas sensor with excellent performances based on novel porous CuO foam via a simple and facile route

Sensors and Actuators B Chemical, Journal Year: 2023, Volume and Issue: 390, P. 133934 - 133934

Published: May 8, 2023

Language: Английский

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Oxygen vacancies induced by lanthanum-doped indium oxide nanofibers for promoted temperature-dependent triethylamine and formaldehyde sensing

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133148 - 133148

Published: Dec. 1, 2023

Language: Английский

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Novel in-situ deposited V2O5 nanorods array film sensor with enhanced gas sensing performance to n-butylamine

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 459, P. 141505 - 141505

Published: Jan. 18, 2023

Language: Английский

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Biomimetic gas sensor derived from disposable bamboo chopsticks for highly sensitive and selective detection of NH3

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 462, P. 142203 - 142203

Published: March 2, 2023

Language: Английский

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Highly selective room temperature ammonia gas sensors based on d-band C-SnO₂ and response behavior induced by oxidative and reductive role shifts

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(20), P. 10565 - 10576

Published: Jan. 1, 2023

The N-type response presents a dynamic balance of O 2 oxidation and NH 3 reduction, while the P-type CO catalyzed reduction oxidation. shift order their oxidative reductive roles varies.

Language: Английский

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Effect of doping concentration on structural, vibrational, morphological and colloidal stability of Zn doped NiO nanoparticles for gas sensor applications

Ceramics International, Journal Year: 2023, Volume and Issue: 49(14), P. 23903 - 23911

Published: April 30, 2023

Language: Английский

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UV-triggered carrier transport regulation of fibrous NiO/SnO2 heterostructures for triethylamine detection

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 476, P. 146687 - 146687

Published: Oct. 14, 2023

Language: Английский

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Enhanced interfacial adhesion of CF/PEEK-titanium hybrid laminates via rare-earth coordination interaction

Composites Science and Technology, Journal Year: 2023, Volume and Issue: 239, P. 110070 - 110070

Published: May 3, 2023

Language: Английский

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Wearable Dual-Signal NH₃ Sensor with High Sensitivity for Non-invasive Diagnosis of Chronic Kidney Disease

Langmuir, Journal Year: 2023, Volume and Issue: 39(9), P. 3420 - 3430

Published: Feb. 22, 2023

NH3 gas in human exhaled breath contains abundant physiological information related to health, especially chronic kidney disease (CKD). Unfortunately, up now, most wearable sensors show inevitable defects (low sensitivity, easy be interfered by the environment, etc.), which may lead misdiagnosis of CKD. To solve above dilemma, a nanoporous, heterogeneous, and dual-signal (optical electrical) sensor mask is developed successfully. More specifically, polyacrylonitrile/bromocresol green (PAN/BCG) nanofiber film as visual polyacrylonitrile/polyaniline/reduced graphene oxide (PAN/PANI/rGO) resistive are constructed. Due high specific surface area binding sites these two films, they exhibit good sensing performance. However, although (PAN/BCG film) simple without need any detecting facilities quite stable when temperature humidity change, it shows poor sensitivity resolution. In comparison, (PAN/PANI/rGO fast response, resolution, but its electrical signal easily external environment (such humidity, temperature, etc.). Considering that principles between significantly different, containing both further explored. Our data prove signals this can not only work well interference with each other also complement improve accuracy, indicating potential application non-invasive diagnosis

Language: Английский

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