Figure 3
From: Design of Non-Deterministic Quasi-random Nanophotonic Structures Using Fourier Space Representations
Fourier space design strategy of non-deterministic quasi-random nanophotonic structures. (a) The simulation-based design approach for optimizing quasi-random nanophotonic structures in Fourier space based on the structural characterization using SDF. (b) The schematic view of the simplified thin-film silicon solar cell model with quasi-random light-trapping structure. The cell is characterized by the thickness of the silicon layer t, and the thickness of scattering layer t1. (c) Optimization history for designing the quasi-random light-trapping structure in the absorber (t = 600 nm, t1 = 100 nm) at λ = 650 nm using genetic algorithm. (d–i) Six different real-space quasi-random structures reconstructed from the optimal solution, where d-f with the channel-type morphology are reconstructed using Gaussian random field modeling and (g–i) with the disk-type morphology are reconstructed using random packing algorithm. (j) The absorption performance of 50 randomly generated quasi-random light-trapping structures from the optimal solution.
