First-Principles Calculations of Group-IV Carbide Quantum Dots and Single-Layer Heterojunctions with Optical Activity and Short-Wave Infrared Emission for Efficient Gas Sensing

ACS Applied Nano Materials, Год журнала: 2025, Номер 8(4), С. 1852 - 1864

Опубликована: Янв. 17, 2025

The recently successful large-area bottom-up synthesis of a two-dimensional honeycomb layer silicon carbide (SiC) (Phys. Rev. Lett. 2023, 130, 076203) has unquestionably outstretched the conventional routes to tackle intriguing underlying physics graphene-like monolayers with diverse functional sectors. In this work, we have tailored group-IV such as SiC, germanium (GeC), and their single-layer heterojunction (J. Appl. Phys. 2022, 132, 184301) six stable quantum dots (QDs) critically explored electronic nature, magnetic edges, transitions subsequent characterization circular dichroism (CD) high sensitivity toward environmentally hazardous gases through first principles. Quantum zigzag edges reveal spin-split nature traces fluorescence around short-wave infrared (SWIR) region. Interestingly, polar QDs SiC–GeC, however, display chiral an asymmetric point group, which been using vibrational dichroism. presence junctions between two different carbides promptly enhances gas 70%, is significantly higher than its constituents, providing alternate route map in extending boundaries environment-friendly application sector.

Язык: Английский

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Two birds with one Stone: Fabrication of Bi2S3/f-MWCNTs nanocomposites for dual-functional gas sensor towards NH3 and acetic acid detection and discrimination at room temperature

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160612 - 160612

Опубликована: Фев. 1, 2025

Язык: Английский

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2D MXenes‐Based Gas Sensors: Progress, Applications, and Challenges

Small Methods, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

Gas detection has become a popular research topic in the field of environmental protection and disease because concerning increase pollution human health problems. 2D MXenes are promising candidates for room-temperature gas sensors their flexible adjustable material compositions, high conductivities, signal-to-noise ratios, surface terminations. This paper presents prospects sensors, structure MXenes, potential sensing mechanisms MXenes-based sensors. Applications Ti3C2Tx, V2CTx, Nb2CTx, Mo2CTx different gases reviewed, challenges directions applying discussed. review provides ideas designing novel sensitive materials by analyzing value sensor field.

Язык: Английский

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A room temperature ammonia sensor based on MoTe2 nanosheets modified with TiO2 nanoparticles

Journal of Hazardous Materials, Год журнала: 2025, Номер unknown, С. 138522 - 138522

Опубликована: Май 1, 2025

Язык: Английский

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