Nowadays, computer modeling provides a fantastic tool to decrease cost, optimize design, and reduce turnaround times of any product. Analysis of microelectronic and photonic structure - 1D (AMPS-1D) presents one of many attempts to unite numerical modeling and the physics of photovoltaic (PV) cell into one software package where the PV device model appears as a planar, layer-by-layer cell. This idealized dimension-lacking structure is of limited utility for advancing the new 3-D geometries being introduced in solar cell architectures. Thus, there is a need to extend AMPS to 3-D, and a unit cell approach allows modeling of a wide variety of repetitive structures while utilizing the minimal computing power. The future development of AMPS-3D may be divided into two main parts. The optical simulation will be done by numerically solving the 3-D Maxwell's equations. For transport in a semiconductor device, the Poisson's equation, and the continuity equations of electron and hole current density can be self-consistently determined by using the drift and diffusion formulation. Recombination mechanisms such as band-to-band, Shockley-Read-Hall, and Auger play significant roles in the second part. The computed solutions can be processed into photovoltaic action results.
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