In this paper, we have obtained a novel way using photonic crystals by theoretical studies to water desalination. Here, in the present design, we are coupling between pyramids and porous structures to yield an efficient solar desalination device. The designed structures from titanium nitrate (TiN) coated with titanium dioxide (TiO₂) which float on the water surface can efficiently absorb a wide-ranging solar spectrum (>90 %). Thus, the TiN/TiO₂ structure is a promising material in the field of seawater desalination by thermal techniques. Moreover, the pyramids shapes on the top of the optical devices have a good ability for light trapping. We have designed the proposed structure using COMSOL multiphysics simulation which it is based on the basic principles of the finite element method (FEM).

在本文中，我们通过理论研究获得了一种使用光子晶体进行水脱盐的新方法。在这里，在本设计中，我们将金字塔和多孔结构耦合在一起，以生产出高效的太阳能淡化设备。由漂浮在水面上的二氧化钛（TiO ₂）涂覆的硝酸钛（TiN）设计的结构可以有效吸收宽范围的太阳光谱（> 90％）。因此，TiN / TiO ₂结构是通过热技术在海水淡化领域中很有希望的材料。此外，光学装置顶部的棱锥形状具有良好的陷光能力。我们基于有限元方法（FEM）的基本原理，使用COMSOL多物理场仿真设计了拟议的结构。