I designed a multi-junction solar cell in the Silveco Atla, which has two tunnel regions. But when I use a quantum mesh for these regions, my simulation is having trouble. Can anyone guide me?
Try to vary the concentration of the two layers P--/n++ of the Tunnel junction within an acceptable range (1012 to 1019) cm-1 and with this variation you can choose the good tunnel junction for your structure. for the mesh shape you can use the trialgular shape. take as an example my simple code for Tandem CGS/CIGS solar cells: