MXene-Based Polarization-Insensitive UV-VIS-NIR Meta-Absorber

Abstract

The concept of achieving perfect absorption of electromagnetic (EM) waves has engendered substantial interest in diverse applications, encompassing photoelectric conversions, infrared imaging, energy harvesting, and photovoltaics. Conventionally, absorber materials of choice have revolved around the utilization of refractory metals. However, this article proposes a pioneering proposition that uses quasi-twodimensional (quasi-2D) material i.e., MXene and uses ceramics material aluminum nitride (AlN) to forge a polarization-insensitive broadband absorber. This ultra-broadband meta-absorber showcases an expanse of absorbance across a comprehensive spectral range, spanning from the ultraviolet (UV) to Near-infrared (NIR) regions, specifically extending from 200 nm to 2000 nm. To previse the angular stability of the meta-absorber, the absorptivity was examined under oblique incidence in both transverse electric (TE) and transverse magnetic (TM) polarizations exhibiting the robustness of broadband absorber. MXene shows exceptional mechanical flexibility, facilitating seamless integration into flexible electronics. Their large specific surface area holds significant promise for high-performance energy storage in applications including energy harvesting, photovoltaics, solar cells, and sensors. These unique characteristics position them at the forefront of material science, driving advancements in next-generation technologies.

Smart indoor organic photovoltaic cells for controlling health monitoring sensors: harnessing sustainable energy solutions for efficient sensing systems

“…Through this breakthrough technology, we can now manipulate electromagnetic waves, including their intensity, polarization, and phase, at both subwavelength and wavelength levels. This has opened up new avenues for researchers and scientists to explore and has the potential to lead to significant advancements in optics and related fields [31][32][33]. These structures have been used for a various exciting applications such as absorber metasurfaces [44][45][46], biomedical imaging [36][37][38], intelligent and multi-function surfaces [39,40], structured beam generation [34,35], and solar-thermophotovoltaic system [41][42][43].…”

Dual-mode polarization-sensitive tunable metalens enabling bright-field and edge-enhanced imaging

“…The optical features of metasurfaces were intended to be beyond what might be perceived in nature [9][10][11]. They were adapted for a variety of applications, such as light structuring [12][13][14][15], reconfigurable intelligent surfaces [16][17][18][19], perfect absorbers [20][21][22], structural color [23][24][25][26], solar energy harvesting [27][28][29], all-solid-state LiDAR systems [30][31][32][33], and meta-holography [34][35][36][37][38][39]. By adjusting meta-atoms to generate a hyperbolic phase distribution across the metasurface diameter, metalenses have also shown an amazing capacity to focus light employing flat optics with subwavelength attributes.…”