Straightforward Synthesis of Borophene Nanolayers for Enhanced NO₂ Detection in Humid Environments

ACS Applied Electronic Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 16, 2025

Язык: Английский

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n/p-Type Doping Modulation of the Adsorption and Selection Behavior of Harmful Gas Molecules on the Surface of SWCNTs for Enhanced Gas-Sensing Performance

ACS Sensors, Год журнала: 2025, Номер unknown

Опубликована: Март 24, 2025

Single-walled carbon nanotubes (SWCNTs) are a promising candidate material for detecting harmful gases due to their unique advanced character, but gas-sensing properties still need be improved. With the aim of exploring more effective modulation ways improve behavior SWCNTs, surface doping effects sodium (Na) atom, typical n-type dopant, and tetracyanoethylene (TCNE), p-type on electronic sensing (7,3), (6,5), (7,5) SWCNTs NO2, SO2, NO, CO2, H2S, NH3 were examined theoretically with density functional theory (DFT) calculations. It is found that decoration Na/TCNE dopant energetically favorable, enhanced/lowered frontier energy levels. Therefore, energy-level alignment among orbitals gas molecules can regulated effectively. The interfacial charge transfer occurs from occupied valence band maximum (VBM) empty lowest unoccupied molecular orbital (LUMO) much significant than between VBM highest (HOMO) molecules. As result, gas-adsorbed cases considered here, carrier concentration increments level (i.e., internal mobility Schottky barrier contact neighboring materials within single-walled nanotube field-effect transistors (SWCNT-FETs)) changed significantly NO2- SO2-adsorbed pristine NO2-, SO2-, NO-adsorbed NO2-adsorbed SWCNTs. Our study highlights key role controlled character dopants play in regulating adsorption selection behaviors practical sensor applications.

Язык: Английский

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Performance demonstration experiment and DFT mechanism for an optical fiber toluene gas sensor based on CQDs@SiO2(-OH) porous film

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162153 - 162153

Опубликована: Апрель 1, 2025

Язык: Английский

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Enhanced spatial charge separation and gas adsorption in Bi2WO6 facet junction for efficient visible light-excited gas detection at room temperature

Journal of Materiomics, Год журнала: 2025, Номер unknown, С. 101062 - 101062

Опубликована: Апрель 1, 2025

Язык: Английский

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Laser additive–subtractive microfabrication of three-dimensional microsupercapacitor electrodes

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 163400 - 163400

Опубликована: Май 1, 2025

Язык: Английский

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