Temperature stability of individual plasmonic Au and TiN nanodiscs
Temperature stability of individual plasmonic Au and TiN nanodiscs
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DOI：
10.1364/ome.462582
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发表时间：
2022-09-01
影响因子：
2.8
通讯作者：
Petrov, Peter K.
中科院分区：
文献类型：
--
作者：
Bower, Ryan;Mcpolin, Cillian P. T.;Petrov, Peter K.
耐火等离子体材料由于其与金和银相比增加的热稳定性而对于高温等离子体应用是令人感兴趣的。氮化钛（TiN）已被强调为一种有前途的耐火材料，提供强大的等离子体和热性能。在这项工作中，我们分析了在空气中高温条件下，各种直径的单个等离子体纳米盘的结构和光学响应的稳定性。使用阴极发光光谱，我们跟踪的共振光谱和形状修改相同的单个TiN和Au光盘退火温度上升到325摄氏度。TiN光盘显示更大的形态稳定性，但两种材料的光学性能从200摄氏度恶化，虽然退化的机制是不同的。该结果对于优化高温纳米光子应用的纳米结构材料至关重要。由Optica Publishing Group根据知识共享署名4.0许可条款发布。本作品的进一步分发必须保留作者和已发表文章的标题、期刊引文和DOI的归属。
Refractory plasmonic materials are of interest for high-temperature plasmonic applications due to their increased thermal stability when compared to gold and silver. Titanium nitride (TiN) has been highlighted as a promising refractory material, offering both strong plasmonic and thermal performance. In this work, we analyze the stability of both the structural and optical response of individual plasmonic nanodiscs of various diameters subjected to elevated temperature conditions in air. Using cathodoluminescence spectroscopy, we trace the resonance spectra and shape modifications of the same single TiN and Au discs annealed at increasing temperatures up to 325 degrees C. TiN discs display greater morphological stability, but the optical properties of both materials deteriorate from 200 degrees C, although the mechanisms of degradation are different. The results are essential for optimizing nanostructured materials for high temperature nanophotonic applications.Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.