Titanium nitride nano-disk arrays-based metasurface as a perfect absorber in the visible range

Abstract

An ultrathin metasurface-based absorber consisting of titanium nitride (TiN) nano-disk arrays–dielectric layer-TiN substrate is proposed in this paper. The absorber exhibits near-unity absorption in the whole visible range of 380–780 nm. Our results demonstrate that the proposed metasurface-based absorber is not only independent of light polarization, but also exhibits angle-independent absorption behavior for oblique incidence up to 70[Formula: see text]. The high absorption performance of the TiN nano-disk arrays-based absorber can attribute to two different loss mechanisms associated with the intrinsic loss and plasmonic resonance.

High-temperature ultra-broad UV–MIR high-efficiency absorber based on double ring-shaped titanium nitride resonators

“…The average absorption in the range of 200-4000 nm is 94.6%. To the best of our knowledge, this bandwidth is the largest when compared to other TiN MIM absorbers [16,17,19,21,22,24].…”

“…Due to its extraordinary properties, such as compatibility with the CMOS processes, high melting point of 2930 ℃, high temperature durability and large loss in the visible range, TiN is a good candidate for the design of prefect absorbers to be used in high-temperature thermo-photovoltaic systems [16,17]. In addition, TiN possesses the property of the transition from dielectrics to metal at the wavelength of 425 nm.…”

“…By virtue of this feature, the broadband absorbers based on the TiN materials can be designed. The TiN based perfect absorbers, including square-ring aray, nanodisk array were firstly studied with high absorption limited in the visible regime [16,17]. More complicated TiN nanostructures, such as TiN 3D-truncated nanopillars and nanocones were proposed to realize broad absorption in the visible and near-infrared (NIR) regions [18,19].…”

An Ultra-High Temperature Stable Solar Absorber Using the ZrC-Based Cermets

“…However, the reliable stable temperatures of these absorbers are below 750 °C due to the limination of intrinsic material properties. In recent years, all-ceramic based absorbers have shown great potential for high-temperature applications, especially for absorbers with transition metal nitrides (Li et al, 2021;Meng et al, 2017;Liang et al, 2018) and their ceramic composites (Meng and Zhou 2019;Zhang et al, 2016;Cao et al, 2017) as the main absorption units realized by different optical designs and absorption mechanisms. Together with transition metal nitrides, transition metal carbides and borides also belong to the UHTCs, which are endowed with high melting temperature (≥3,000 °C), good thermal and electrical conductivity (Chen et al, 2021), and chemical inertness (Tang and Hu 2017;Fahrenholtz and Hilmas 2017).…”

Solar broadband metamaterial perfect absorber based on dielectric resonant structure of Ge cone array and InAs film*

“…[20] Liang et al disigned an absorber based on titanium nitride nano-disks, which exhibits near-unity absorption in the whole visible range. [21] However, owing to the high symmetry of the cubes and disks, the generation of many resonance modes is restricted, and perfect ab-sorbers based on these high-symmetry structures can achieve the perfect absorption only in a range from visible to nearinfrared light. Therefore, the introduction of asymmetric parts into the traditional high-symmetric structures may increase resonance modes of the structures, which makes it possible to cover the whole solar absorption spectrum.…”