No abstract

No abstract

In this paper, metal-insulator-metal (MIM) plasmonic waveguide structures and a rectangular cavity resonator at a central frequency of 1550 nm were used to propose a complete full adder. Under this circumstances, the system has a fast function with slight variations in real- time or near real-time manner, and this led to its minimum power consumption, while serving in various situations. In this full adder, we benefited from the property of combining resonant waves in the first and second modes, and we managed to obtain a high transmission coefficient in states where the output must be active. This complete full adder operates through designing 4-input AND, XOR, OR, and NOT logic gates, resulting in the design of a complete full adder with low manufacturing complexity and cost relative to ones designed through combining the conventional 2-input AND and OR gates. In comparison of three computational methods, finite‐difference time‐domain (FDTD) is a simple and versatile method. This method directly discretizes the time‐domain partial differential form of Maxwell's equations in various dimensions while using analytical solution in the remaining direction and solving the 3D scattering problem. Therefore, necessary simulations were conducted using FDTD software, and showed a good fit to the results predicted through approximations intended for theoretical relations.

The present study addresses the structure of InGaP/GaAs dual-junction (DJ) solar cells by introducing new buffer and back surface field (BSF) layers as well as selecting the appropriate materials for the tunnel junction. Different performance parameters including open-circuit voltage (𝑉oc) short-circuit current density (𝐽𝑆𝐶), fill factor (𝐹𝐹), and solar cell efficiency (𝜂) were proposed and extracted for comparison with literature results. Then, I-V characteristic curves for the model were represented in graphs. The mentioned parameters, i.e. open-circuit voltage 𝑉𝑂𝐶, short-circuit current density 𝐽𝑆𝐶, fill factor 𝐹𝐹, and solar cell efficiency 𝜂 were, respectively, obtained as 18.50 𝑚𝐴/𝑐𝑚2, 2.862 V, 87/32 percent and 46.23 percent (1sun) under AM1.5G spectrum, which indicates the improvements achieved in this study.