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Software: ANSYS Lumerical© Solutions
Technique: Optical (electromagnetic) modelling via FDTD method and Electrical (charge transport) simulations via FEM method
Acquisition year and funding source: 2021, licence purchased via national FCT project SuperSolar (PTDC/NAN-OPT/28430/2017)
Responsibles: Manuel J. Mendes / () e Miguel Alexandre / ()

Description: Software for modelling thin-film solar cells with arbitrary device geometry. Simulation of electromagnetic field uses a 3D Finite Difference Time Domain (FDTD) solver while a finite element method (FEM) implementation of the charge transport (drift-diffusion plus Poisson) simulates electrical behaviour considering optically-calculated photogeneration profiles and material properties. 

Specifications: 

  • 3D CAD Environment and parameterizable simulation objects allow for rapid model iterations.
  • Uses multi-coefficient models for accurate material modelling over large wavelength ranges.
  • Capability to simulate devices fabricated with nonlinear materials or materials with spatially varying anisotropy.
  • Powerful post-processing capability, including far-field projection, band structure analysis, bidirectional scattering distribution function (BSDF) generation, Q-factor analysis, and charge generation rate.
  • Lumerical’s high-performing solvers work seamlessly with high-performance computing (HPC) compatible with parallel processing
  • Solvers are interoperable with all Lumerical tools through the Lumerical scripting language, Automation API, and Python and MATLAB APIs.
  • Incorporated smart-search optimization algorithms
  • Solutions can cover a broad frequency range
  • Considers material parameters (as bandgap, dielectric permittivity, electron/hole effective mass, electron affinity, mobility, lifetime, doping, the density of states, series resistance, among others.)

Link for additional information (if any): 
https://www.lumerical.com/ansys/