Boundary condition for solar cell

Please login with a confirmed email address before reporting spam

Hello,

I've analyzed the si_solar_cell_1d example in the semiconductor modulus documentation and noticed that it enforces the ohmic contact constraint on carrier concentrations Ne and Ph, defining neq and peq as boundaries to represent thermal equilibrium carrier concentrations. However, upon enabling carrier generation, I consistently observed a lower carrier concentration near the boundary compared to the region farther from the boundary, despite the expected increase in carrier concentrations from optical transitions. This raises questions about the accuracy of the boundary condition and, consequently, the validity of the obtained IV curves. Can anyone provide insights into the underlying reasons for this phenomenon. Any feedback or comments would be greatly appreciated.


0 Replies Last Post Jan 20, 2024, 3:14 p.m. EST
COMSOL Moderator

Hello Yi-De Liou

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Reply

Please read the discussion forum rules before posting.

Please log in to post a reply.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.