To help us solve your issue as quickly as possible, please provide the following information:
1. What device are you trying to simulate? Include diagrams if available.
Hi! I am an undergraduate student working on a solar cell simulation through Lumerical. My group and I are using the Planar Silicon Solar Cell Template downloaded from the available projects. Our goal is to manipulate this tutorial to work for an ultrathin (200nm) GaAs solar cell.
2. What results are you trying to obtain? Be as specific as possible.
Ultra-Thin GaAs solar Cell with Aluminum substrate.
3. Description of the problem or issue.
So, we first ran the Silicon Solar Cell Tutorial without changing any settings, and this ran successfully. We then changed the material in the tutorial to GaAs, this also ran successfully. We then tried to changed the GaAs cell from 1um to 200nm. The optical FDTD part of the simulation ran successfully, but the HEAT and CHARGE solvers did not produce sensible results. The charge carrier efficiency was 0 and our voltages were also 0. We know this ultra-thin solar cell should produce some charge because there are real cells that have shown experimental feasibility. Is Lumerical able to simulate ultra-thin materials? And if so, how can we simulate that (what parameters can we alter to make this work)?
4. Lumerical product and software version.
Heat and Charge Solver from the Planar Silicon Solar Cell.
5. Please attach your simulation files, including any logs.