Refractory plasmonics with titanium nitride: broadband metamaterial absorber

Adv Mater. 2014 Dec 17;26(47):7959-65. doi: 10.1002/adma.201401874. Epub 2014 Oct 18.


A high-temperature stable broadband plasmonic absorber is designed, fabricated, and optically characterized. A broadband absorber with an average high absorption of 95% and a total thickness of 240 nm is fabricated, using a refractory plasmonic material, titanium nitride. This absorber integrates both the plasmonic resonances and the dielectric-like loss. It opens a path for the interesting applications such as solar thermophotovoltaics and optical circuits.

Keywords: high temperature; nanostructures; perfect absorbers; plasmonic metamaterials; solar thermophotovoltaics.