Hybrid Nanoarchitectronics of Tantalum Oxide‐Coated Gold Nanoparticles as Localized Surface Plasmon Resonance‐Based Sensors for Volatile Organic Compounds Detection

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Physica Status Solidi A-applications and Materials Science Pub Date : 2024-08-23 DOI:10.1002/pssa.202400181

Kiratikarn Changpradub, Thotsaphon Threrujirapapong, Tossaporn Lertvanithphol, Ratthasart Amarit, Kruawan Wongpanya, Khwanchai Tantiwanichapan, Tuksadon Wutikhun, Annop Klamchuen, Hideki Nakajima, Mati Horprathum

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Abstract

Herein, a localized surface plasmon resonance‐based sensor for volatile organic compounds (VOCs) detection is developed. The sensors are fabricated as a hybrid nanostructure of gold nanoparticles coated with a tantalum oxide (TaO) thin film on a glass slide substrate through magnetron sputtering and thermal solid‐state dewetting techniques. The thickness of the TaO film varies between 10 and 70 nm. The optical properties of samples are characterized by UV‐Vis‐NIR spectrophotometry, while their morphologies are confirmed via transmission electron microscopy. The results show the shift of the minimum optical transmittance related to the TaO thickness. Electrical field simulations are performed to predict the sensitivity of the prepared samples for VOCs detection. In addition, the sensors are tested with different VOCs, including formaldehyde, isopropanol, acetone, and methanol, which show good potential for practical applications.

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氧化钽涂层金纳米粒子的混合纳米架构作为基于局部表面等离子体共振的传感器用于挥发性有机化合物检测

本文开发了一种基于局部表面等离子体共振的挥发性有机化合物 (VOC) 检测传感器。传感器是通过磁控溅射和热固态脱胶技术在玻璃片基底上制作的金纳米颗粒与氧化钽（TaO）薄膜的混合纳米结构。氧化钽薄膜的厚度在 10 纳米到 70 纳米之间。样品的光学特性由紫外-可见-近红外分光光度法表征，其形貌则由透射电子显微镜确认。结果表明，最小透光率的变化与氧化钽厚度有关。通过电场模拟来预测制备的样品在检测挥发性有机化合物方面的灵敏度。此外，还用不同的挥发性有机化合物（包括甲醛、异丙醇、丙酮和甲醇）对传感器进行了测试，结果表明其具有良好的实际应用潜力。

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来源期刊

Physica Status Solidi A-applications and Materials Science 工程技术-材料科学：综合

CiteScore

3.70

自引率

5.00%

发文量

393

审稿时长

2 months

期刊介绍： The physica status solidi (pss) journal group is devoted to the thorough peer review and the rapid publication of new and important results in all fields of solid state and materials physics, from basic science to applications and devices. Among the largest and most established international publications, the pss journals publish reviews, letters and original articles, as regular content as well as in special issues and topical sections.