科研之友
微信
新浪微博
Facebook
分享链接
摘要
This paper presents fabrication, measurement and modelling results for a metal-dielectric-metal meta surface absorber for solar thermal applications. The structure uses amorphous carbon as an inter-layer between thin gold films with the upper film patterned with a 2D periodic array using focused ion beam etching. The pattern has been optimised to give high absorptance from 400 to 1200 nm and low absorptance above this wavelength range to minimise thermal radiation and hence obtain higher temperature performance. Wide angle absorptance results are shown and detailed modelling of a realistic nanostructured upper layer results in excellent agreement between measured and modelled results. The use of gold in this paper is a first step towards a high temperature metasurface where gold can be replaced by other refractory metals such as tungsten or chrome.
- 出版日期2016-8
