基于硅纳米片阵列的大面积近红外超材料发射体

IF 3.1 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION

Infrared Physics & Technology Pub Date : 2025-03-25 DOI:10.1016/j.infrared.2025.105827

Can Li , Yecheng Luo , Yi Shu , Churong Ma , Kai Chen

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引用次数: 0

摘要

太阳能收集为满足持续增长的全球电力需求提供了一个可持续的解决方案。热光伏（TPV）技术是一种将太阳能热能转化为电能的技术，其核心部件是可以承受高温的热辐射器。在这项研究中，我们成功地在钨衬底上开发了基于硅纳米盘阵列的光谱选择性发射极。通过调整阵列的结构参数，我们不仅可以有效地调整共振的光谱位置，还可以控制光谱带宽，使吸收/发射波长与各种半导体材料的带隙相匹配。实验发射率高达0.89。纳米圆盘是用可扩展的胶体光刻技术制造的，可以大规模生产这些结构。

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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Large-Area near infrared metamaterial emitters based on Si nanodisk arrays

Solar energy harvesting provides a sustainable solution to meet the continuous growth of global power demand. Thermophotovoltaic (TPV) technology is a technique of converting solar thermal energy into electricity, with its core component being a thermal emitter that can endure high temperatures. In this study, we successfully developed a spectrally selective emitter based on silicon nanodisk arrays on a tungsten substrate. By adjusting the structural parameters of the arrays, we can not only effectively tune the spectral position of the resonances but also control the spectral bandwidth, matching the absorption/emission wavelength with the bandgaps of various semiconductor materials. Experimental emissivity as high as 0.89 was obtained. The nanodisks are manufactured using scalable colloidal lithography enabling mass-production of these structures for TPV technology.

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来源期刊

Infrared Physics & Technology 物理-光学

CiteScore

5.70

自引率

12.10%

发文量

400

审稿时长

67 days

期刊介绍： The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.