I worked on different strategies to reduce the load balancing when dealing with highly complicated configuration (local refinement, hybrid meshes, local observables, ...).

Development of a MHM Mesh generator for complex configuration by exploiting CAD features from GMSH 3.0+. This is the first step for the implementation of the 3D MHM-DGTD solver.

We study light trapping in a silicon-based thin-film solar cell setup that consists of several randomly textured layers using DGTD solver DIOGENeS⁵⁺. The focus is on a-Si:H⁵ and µc-Si:H^5* which belong to the family of disordered semiconductors. More information about this case on Nachos highlights of the month.

^{5. Amorphous silicon}

^{5*. Microcrystalline silicon}

^{5+. DIscOntinuous GalErkin Nanoscale Solvers}

Work on the MHM-DGTD⁴ code of Raphaël Léger for the 2D time domain Maxwell's equations. Developpement of a tool for the generation of the coarse and of the local meshes of complex configuration. Implementation of local order per edges to deal with heterogeneous media.

Add the possibility to deal with hybrid meshes in DIOGENeS. We show the benefits for photovoltaic type cells by using hexahedral conform mesh in homogeneous region and tetrahedral mesh for the nanotextured interfaces. Hybrid meshes are obtained from THYMuS (see bellow) and from GMSH 4.4+.

Here we are interested by solar absorption in ultra-thin-film GaAs³ photonic crystals. GaAs solar cells offer an alternative material to mostly used silicon-based solar cells.

^{3. Gallium arsenide}

Developement from scratch of THYMuS², a non conformal hybrid mesh generator of complex geometries in the context of ANR TECSER project.

Worked on the HORSE¹ platform of Ludovic Moya , platform based on HDG^1* method for solving the time-harmonic Maxwell’s equation in 3D and add into it the possibility to use tetrahedral/hexahedral hybrid meshes.

^{1. High Order solver for Radar cross Section Evaluation}

^{1*. Hybrid Discontinuous Galerkin Methods}