Terahertz metasurfaces with pixelated meta-atoms were designed for linear-polarization conversion and absorption. The differences between the two functionalities emerged from number arrangement of metal-dielectric combos patching some but not necessarily every pixel each meta-atom. A a meta-atom 3×3 pixels yielded polarization ratio (PCR) >0.9 over 10.20–16.08 THz band, whereas another absorpta...

Three of central challenges in solar cells are high light coupling into solar cell, high light trapping and absorption in a sub-absorption-length-thick active layer, and replacement of the indium-tin-oxide (ITO) transparent electrode used in thin-film devices. Here, we report a proposal and the first experimental study and demonstration of a new ultra-thin high-efficiency organic solar cell (SC...

In this study, we reported the plasmon-exciton coupling for excitation of surface plexciton wave in columnar thin film with a central exciton slab using transfer matrix method Turbadar–Kretschmann–Raether configuration. The optical absorptance spectra plasmon polariton, and was investigated at different structural parameters proposed structure. characteristics modes were analyzed there an antic...

A new design of an ultra wide-band metamaterial absorber (MMA), with appreciable high absorptance insensitive to angle incidence and polarization is presented in the manuscript. The MMA structure consists three concentric rings non-linear variation spacing thickness controlled by a single parameter. idea utilizing nonlinear based unit cell resulted frequency spectrum X -band. proposed layered s...

Phase change materials (PCMs) are regarded as one of the most promising candidates for thermal energy storage due to possessing large densities and maintaining nearly a constant temperature during charging/discharging processes. However, intrinsically low conductivity PCMs has become bottleneck rapid transport storage. Here, we present strategy achieve ultrafast solar based on biomorphic SiC sk...

We present an optical simulation of a solar cell employing core (Si) /shell (Kesterite Cu2ZnSnS4 (CZTS) or/and Cu2ZnSnSe4 CZTSe) vertically-aligned nanowire array. The method the is rigorous coupled wave analysis. In first stage, we studied case where shell composed only CZTS or CZTSe. A larger absorptance CZTSe led to value ideal short circuit current (41 mA/cm2) in than (24 mA/cm2). second av...

In the above paper, there were errors in digitizing spectral irradiance and extinction coefficient arrays. With fixed to tabulated AM1.5G standard, full-spectrum absorptance of GaAs changes by 2%. This change is on order uncertainty reflectance measurements. Furthermore, this can be balanced a proportional increase convection coefficient, leading no visible most figures. However, last two figur...

In this paper, a metamaterial absorber with checkerboard patterned ITO (indium tin oxide) film as the surface is obtained by using flexible and optically transparent wave-absorbing material ITO–PET (polyethylene terephthalate), coding arrangement of two basic units based on APS-PSO (Array Pattern Synthesis -Particle Swarm Optimization) algorithm. The structure consists rectangular patch structu...