Making a miniature Sun

制作一个微型太阳

• 批准号: EP/V048295/1
• 负责人: Oliver Williams
• 金额: $ 25.73万
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FV048295%2F1
• 关键词: Making; miniature; Sun

This project will produce devices that are capable of operating at two thirds of the temperature of the sun's surface. Micro hot plate devices will be fabricated from the Ultra High Temperature Ceramic (UHTC) Hafnium Carbide, which has a melting point above 4000 K. To put this in perspective, only three elements have higher melting points than 3300 K (W, Re and Ta). Operating these hot plates at such high temperatures will produce intense blackbody emission centred in the Near-IR with more than 1000 times the intensity of the state of the art. Such radiation is used in many industrial, medical and defence applications such as gas sensing and spectroscopy. In particular there is a new demand in mobile sensing that requires miniaturised IR light sources with broader wavelength capabilities. The proposed micro emitters are much brighter, broader wavelength and faster than what exists today and can improve the speed, precision and range of applications of existing sensing platforms.

该项目将生产能够在太阳表面三分之二温度下运行的设备。微型热板器件将由熔点高于 4000 K 的超高温陶瓷 (UHTC) 碳化铪制成。从长远来看，只有三种元素的熔点高于 3300 K（W、Re 和 Ta） ）。在如此高的温度下操作这些热板将产生以近红外为中心的强烈黑体发射，其强度是现有技术的 1000 倍以上。这种辐射用于许多工业、医疗和国防应用，例如气体传感和光谱学。特别是移动传感领域提出了新的需求，需要具有更宽波长能力的小型红外光源。所提出的微型发射器比现有的微型发射器更亮、波长更宽、速度更快，并且可以提高现有传感平台的速度、精度和应用范围。

项目成果

Polycrystalline Diamond Micro-Hotplates.

• DOI: 10.1002/smll.202303976
• 发表时间: 2023-08
• 期刊: Small
• 影响因子: 13.3
• 作者: E. Thomas;Jaspa Stritt;S. Mandal;M. Imboden;O. Williams