近红外激光烧蚀制备等离子体ITO纳米颗粒

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-01-14 DOI:10.1063/5.0245805

Seung Hyuk Lee, Ming Yin, Tetsu Tatsuma

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引用次数: 0

摘要

复合纳米颗粒（NPs）因其独特的电学、光学和催化性能而备受关注。其中，等离子体锡掺杂氧化铟（ITO） NPs具有可见光透明和近红外（NIR）可调局部表面等离子体共振（LSPR）的特点。迄今为止，它们通常是通过化学溶液法合成的。然而，化学合成的ITO NPs被有机保护剂覆盖，这通常会阻止电荷载流子的交换和化学物质进入NPs，限制了一些应用。在本研究中，我们提出了一种利用市售ITO涂层玻璃通过近红外激光烧蚀在玻璃或塑料基板上直接沉积ITO纳米粒子的方法。由此制备的ITO纳米粒子的LSPR特性可以通过改变烧蚀条件（如激光功率）来控制。此外，通过测量ITO纳米粒子的折射率灵敏度和磁圆二色性，探讨了其潜在的应用前景。

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Deposition of plasmonic ITO nanoparticles by near-infrared laser ablation

Compound nanoparticles (NPs) attract attention because of their unique electrical, optical, and catalytic properties. Among them, plasmonic tin-doped indium oxide (ITO) NPs are characterized by transparency in the visible wavelength range and tunable localized surface plasmon resonance (LSPR) in the near-infrared (NIR) range due to high electronic conductivity. To date, they have been usually synthesized by a chemical solution process. However, the chemically synthesized ITO NPs are capped with organic protecting agents, which often block exchange of charge carriers and access of chemical species to the NPs, limiting some applications. In the present study, we propose a method for direct deposition of ITO NPs on a glass or plastic substrate using commercially available ITO-coated glass via NIR laser ablation. The LSPR characteristics of the ITO NPs, thus, prepared were controlled by changing the ablation conditions such as laser power. In addition, the potential applications of the ITO NPs were also investigated through measurements of their refractive index sensitivity and magnetic circular dichroism.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.