This example shows how to setup a detailed skin including a transport layer to enabled the detailed MIS model in Quokka3. The detailed MIS model resolves band-bending in the c-Si wafer and direct tunneling through an insulator.

The investigated cell is the former 25.7% record cell of Fraunhofer ISE: A. Richter et al., n-Type Si solar cells with passivating electron contact: Identifying sources for efficiency limitations by wafer thickness and resistivity variation, SOLMAT 2017

bifacial TOPCon cell

This example defines a bifacial solar cell concept, typical for an industrial n-type TOPCon solar cell. It shows how to add a ploy-Si layer on top of a lumped skin to account both for parasitic absorption (FCA + band-to-band) and lateral conductance.

Another settingsfile is included showing how the extended Basore model describing bifacial optics in Quokka3 can be calibrated by fitting meausured reflection and transmission for front and rear illumination.

Image taken from: Chen…