Impact of Self-Absorption and Cavity Effects on the Electroluminescence Spectra of Thin-Film Solar Cells
van der Pol, T.P.A., Datta, K., Wienk, M.M. and Janssen,
R.A.J. (2022), Sol. RRL, 6: 2200872.
https://doi.org/10.1002/solr.202200872
A modeling approach is developed to correct outcoupled electroluminescence spectra in thin-film organic and perovskite solar cells. The approach takes into account self-absorption, cavity effects, and nonhomogeneous emission profile to yield intrinsic spectrum. The impact of these effects is studied for various device parameters to uncover trends and provide guidelines for a large set of devices.
Optical Modeling: The simulation procedure used here was based on Dyson et al. where the outcoupled spectrum is calculated using Setfos for a 1 nm emitter layer located in the active layer