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In this work, the photolithography processed nickel (Ni) grids were used to replace indium tin oxide (ITO) as the transparent anode for perovskite solar cells. The results show that the Ni grids have a senior adhesion ability to glass substrates than that of Ag grids, and the obtained device show a comparable short circuit current density (JSC) to that of ITO based device, while the open circuit voltage...
A tunable plasma photonic crystal (PPC) with a hexagonal structure is obtained by using a dielectric barrier discharge system with liquid electrodes. The lattice constant can be adjusted from 1.7 to 4.5 mm by changing the discharge parameters such as the applied voltage, the gas gap width, and the gas pressure. It results in the change of the dispersion relations of the PPCs.
The Fast Fourier Transform is an important method in analysis patterns. In this paper, the FFT is used to the images of the patterns to analyze the competition of the modes and the evolution of the patterns. With the increase of applied voltage the competition between patterns are obtained in dielectric barrier discharge system with two liquid electrodes at the pressure p = 0.3 atm and p = 0.2 atm...
Fast Fourier transform of the time series is an important way to analyze the periodic and chaos behavior of the signal. In this paper, the light signals of two types of ring-shaped spots, which are found in dielectric barrier discharge in the mixture of air and argon with two liquid electrodes, are recorded and compared through fast Fourier transform. It can be seen from the fast Fourier transform...
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