Ultra-compact ultra-fast 1-bit comparator based on a two-dimensional nonlinear photonic crystal structure

2020 ◽  
Vol 59 (3) ◽  
pp. 811 ◽  
Author(s):  
Zahra Seraj ◽  
Mohammad Soroosh ◽  
Navid Alaei-Sheini
Keyword(s):  
Crystal Structure ◽  
Photonic Crystal ◽  
Photonic Crystal Structure ◽  
Two Dimensional ◽  
Nonlinear Photonic Crystal

scholarly journals Rational Design and Simulation of Two-Dimensional Perovskite Photonic Crystal Absorption Layers Enabling Improved Light Absorption Efficiency for Solar Cells

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2460
Author(s):  
Jian Zou ◽  
Mengnan Liu ◽  
Shuyu Tan ◽  
Zhijie Bi ◽  
Yong Wan ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solar Cells ◽  
Photonic Crystal ◽  
Incident Light ◽  
Absorption Efficiency ◽  
Utilization Efficiency ◽  
Photonic Crystal Structure ◽  
Two Dimensional ◽  
Photoelectric Conversion ◽  
Absorption Layer

A two-dimensional perovskite photonic crystal structure of Methylamine lead iodide (CH3NH3PbI3, MAPbI3) is rationally designed as the absorption layer for solar cells. The photonic crystal (PC) structure possesses the distinct “slow light” and band gap effect, leading to the increased absorption efficiency of the absorption layer, and thus the increased photoelectric conversion efficiency of the battery. Simulation results indicate that the best absorption efficiency can be achieved when the scattering element of indium arsenide (InAs) cylinder is arranged in the absorption layer in the form of tetragonal lattice with the height of 0.6 μm, the diameter of 0.24 μm, and the lattice constant of 0.4 μm. In the wide wavelength range of 400–1200 nm, the absorption efficiency can be reached up to 82.5%, which is 70.1% higher than that of the absorption layer without the photonic crystal structure. In addition, the absorption layer with photonic crystal structure has good adaptability to the incident light angle, presenting the stable absorption efficiency of 80% in the wide incident range of 0–80°. The results demonstrate that the absorption layer with photonic crystal structure can realize the wide spectrum, wide angle, and high absorption of incident light, resulting in the increased utilization efficiency of solar energy.

Coherent two-dimensional lasing action in surface-emitting laser with triangular-lattice photonic crystal structure

1999 ◽  
Vol 75 (3) ◽  
pp. 316-318 ◽  
Author(s):  
Masahiro Imada ◽  
Susumu Noda ◽  
Alongkarn Chutinan ◽  
Takashi Tokuda ◽  
Michio Murata ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Photonic Crystal ◽  
Triangular Lattice ◽  
Photonic Crystal Structure ◽  
Two Dimensional ◽  
Surface Emitting Laser
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