CHARGE Simulation_Solar Cell’s Metal/Insulator/Metal Electrode Usage Error Issue

- July 24, 2024 at 8:23 am
  
  rhawns4567
  Subscriber
  
  hello,
  I am a student using Ansysy CHARGE simulation.
  I am doing research on solar cells, and I want to analyze a new solar cell structure with CHARGE simulation and extract the results, but I am having problems with the simulation part.
  When I ran the CHARGE simulation with the existing solar cell 'Glass/Mo (metal)/nano-patterned Al2O3/CIGS/CdS/ZnO/ZnO:Al' structure, I was able to extract the results without any problem.
  However, when simulating with the structure 'Glass/Mo (metal)/nano-patterned Al2O3/Ag (metal)/CIGS/CdS/ZnO/ZnO:Al', an error appears and the simulation fails.
  I think it is because Ag (conductor) is added, but I wonder if it is impossible to simulate using multiple metals in CHARGE simulation and if there is a way to solve it.
  If so, I will wait for your answer.
  Thank you.
- July 24, 2024 at 4:22 pm
  
  Guilin Sun
  Ansys Employee
  
  In CHARGE, all metals are ideal perfect electric conductor with different work functions. and all metals have to be associated with electrode, eg each metal should have reference voltage. Please check if there is.
  and what the error message it shows? it may give you hind the source of the problem.
- July 25, 2024 at 1:14 am
  
  rhawns4567
  Subscriber
  
  Thank you for your response.
  I will share the simulation and error screens, respectively.
  I am using the top ZnO layer and the bottom Mo layer as electrodes but encountering the following errors.
- July 25, 2024 at 4:51 pm
  
  Guilin Sun
  Ansys Employee
  
  The error message clearly mentions that the contact has no property associated. Please check the material, and set its voltage.
  In addition, one contact can only have one material.Otherwise its potential is undefined.