Computational design of photovoltaics with silicon nanowire

This paper introduces two computational electromagnetic (EM) modeling tools to simulate the photovoltaics with Silicon nanowire array and compares the results from them. It will also present a justification for the requirement of a computation EM tool and discuss techniques of measuring absorption with the EM modeling tool. A simulation of the entire nanowire array would be memory intensive, so the periodic structure of the array is leveraged to obtain a unit cell with periodic boundary conditions. The unit structure is simulated from 400 to 800 THz because solar energy spectrum is from 380 to 800 nm. The simulation results are analyzed and compared to the references for accuracy.