Tunable Plasmonic System Based on Disordered Palladium Nanoparticles and Its Application to Optical Hydrogen Sensors

IF 8.7 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY ACS Materials Letters Pub Date : 2025-01-31 DOI:10.1021/acsmaterialslett.4c02219

Yang Yang, Xiaoyi She*, Zhongyang Liu, Ni Zhang, Yang Shen and Chongjun Jin*,

引用次数: 0

Abstract

Plasmonic systems based on metallic nanostructures have special properties for light localization, photon transportation, and energy harvesting and have been widely applied in various optical applications. Here, we propose a tunable plasmonic system composed of disordered palladium (Pd) nanoparticles (NPs) on a planar optical cavity. We manipulate optical absorption intensity and bandwidth by controlling the effective thickness of the Pd NPs, which achieve an ultralow reflectance of 0.06%. Furthermore, the optical absorption mode of the plasmonic system can be modulated by the hydrogen absorption of the Pd NPs. The tunable optical absorption of the plasmonic system can be explained by the coupled-mode theory. This Pd-based plasmonic system will not only facilitate a further understanding of the optical properties of disordered systems but also provide a novel platform for practical applications such as visual hydrogen sensing.

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基于无序钯纳米粒子的可调谐等离子系统及其在光学氢传感器中的应用

基于金属纳米结构的等离子体系统具有光定位、光子输运和能量收集等特性，在各种光学应用中得到了广泛的应用。在这里，我们提出了一个由无序钯纳米粒子（NPs）组成的可调谐等离子体系统在平面光学腔。我们通过控制Pd NPs的有效厚度来控制光吸收强度和带宽，从而实现0.06%的超低反射率。此外，等离子体系统的光吸收模式可以通过Pd NPs的氢吸收来调制。等离子体系统的可调谐光吸收可以用耦合模理论来解释。这种基于pd的等离子体系统不仅有助于进一步了解无序系统的光学性质，而且为视觉氢传感等实际应用提供了一个新的平台。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.

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