Physics &&&&&&& Carrier transport ================= #. The IB is only defined within the IB material region, and not outside. FEniCS doesn't seem to have a way to restrict a function to a subset of the mesh. We therefore need to figure out how to set essential BC on internal dofs to exclude them from the calculation. #. Try: Evaluate formal ``V_bc + u_bc`` to get ``w_bc``, and use that as the ``w`` BC. #. Requested diagnostic: Produce plot with no majority contact fix and finer meshing in the y direction. #. What if the continuity and transport equations didn't use the same quadrature degree for ``exp(w)``? This could lead to an inconsistency near a minority contact, and therefore noise. #. Idea: Imposing ``j_u`` essential BC and iterating to impose the SRV BC. #. Implement interactive 2d plots. Optics ====== #. For Strandberg, use approximate form for radiative trapping rate (instead of the Fermi-Dirac degree 2 integral which they don't use anyway). #. Non-square-peak absorption is important! Account for it when designing optical part of software. Jacob's idea for optical fields ------------------------------- Using a "plane wave" (all parallel) basis for the light intensity, with one basis function per angle, means having very many light fields, i.e. many variables (which is bad because of the ``O(N^3)`` time complexity scaling). Instead we can exploit the Lambertian behavior of a nice back surface to use a Lambertian basis for the light from the back contact (in addition to, for example, specular reflection). Presentation ============ #. Be clear when talking about CB->IB->VB processes. Recombination is usually reserved for CB->VB processes. The CB/VB->IB processes are instead referred to as "trapping" (Shockley-Read, not SRH).