High-performance gas sensors based on nanostructured metal oxide semiconductors: Materials engineering and sensing mechanisms

IF 5.45 Q1 Physics and Astronomy

Nano-Structures & Nano-Objects Pub Date : 2025-10-07 DOI:10.1016/j.nanoso.2025.101560

Nivishna R, Anilkumar P, Nisha Jenifar A

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引用次数: 0

Abstract

The rapid rise in industrialization and urbanization has significantly increased air pollution, posing serious risks to human health and the environment. Although various gas detection methods have been developed, they often suffer from high costs, complex operation, and limited suitability for real-time monitoring. To address these challenges, extensive research has focused on developing efficient environmental sensors, progressing from theoretical studies to practical applications. Among these, Metal Oxide Semiconductor (MOS)-based gas sensors have emerged as a promising option owing to their cost-effectiveness, high sensitivity, selectivity, and reliable performance. This review provides a comprehensive overview of recent advancements in gas sensor technology, with particular emphasis on synthesis techniques, morphological modifications, and the gas-sensing mechanisms of MOS materials. Furthermore, it highlights the critical relationship between material properties and sensor performance and discusses future research directions aimed at advancing MOS-based gas sensing technologies.

查看原文本刊更多论文

基于纳米结构金属氧化物半导体的高性能气体传感器：材料工程和传感机制

工业化和城市化的快速发展使空气污染显著加剧，对人类健康和环境构成严重威胁。尽管已经开发了各种气体检测方法，但它们往往存在成本高、操作复杂、实时监测适用性有限等问题。为了应对这些挑战，大量的研究集中在开发高效的环境传感器上，从理论研究到实际应用。其中，基于金属氧化物半导体（MOS）的气体传感器由于其成本效益、高灵敏度、选择性和可靠的性能而成为一种有前途的选择。本文综述了气体传感器技术的最新进展，重点介绍了MOS材料的合成技术、形态修饰和气敏机理。此外，它强调了材料性能与传感器性能之间的关键关系，并讨论了旨在推进基于mos的气体传感技术的未来研究方向。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano-Structures & Nano-Objects Physics and Astronomy-Condensed Matter Physics

CiteScore

9.20

自引率

0.00%

发文量

审稿时长

22 days

期刊介绍： Nano-Structures & Nano-Objects is a new journal devoted to all aspects of the synthesis and the properties of this new flourishing domain. The journal is devoted to novel architectures at the nano-level with an emphasis on new synthesis and characterization methods. The journal is focused on the objects rather than on their applications. However, the research for new applications of original nano-structures & nano-objects in various fields such as nano-electronics, energy conversion, catalysis, drug delivery and nano-medicine is also welcome. The scope of Nano-Structures & Nano-Objects involves: -Metal and alloy nanoparticles with complex nanostructures such as shape control, core-shell and dumbells -Oxide nanoparticles and nanostructures, with complex oxide/metal, oxide/surface and oxide /organic interfaces -Inorganic semi-conducting nanoparticles (quantum dots) with an emphasis on new phases, structures, shapes and complexity -Nanostructures involving molecular inorganic species such as nanoparticles of coordination compounds, molecular magnets, spin transition nanoparticles etc. or organic nano-objects, in particular for molecular electronics -Nanostructured materials such as nano-MOFs and nano-zeolites -Hetero-junctions between molecules and nano-objects, between different nano-objects & nanostructures or between nano-objects & nanostructures and surfaces -Methods of characterization specific of the nano size or adapted for the nano size such as X-ray and neutron scattering, light scattering, NMR, Raman, Plasmonics, near field microscopies, various TEM and SEM techniques, magnetic studies, etc .