Solar Cells Simulation Using Lumerical Tools (Part 5 - Lumerical Charge)
Overview
This script calculates the open circuit voltage and short circuit current based on the voltage and current data calculated in the solver. The voltage and current are plotted, and the absolute value of J multiplied by V is calculated as power (P), which is then plotted.
Simulation Results
- Open Circuit Voltage: Approximately 6 volts
- Short Circuit Current: Approximately 2224 (units not specified)
- Maximum Power Efficiency: Approximately 12.3%
- Fill Factor: Approximately 0.8
You can calculate the fill factor and efficiency using the following equations:
- Fill Factor (FF): Pmax / (VOC * ISC)
- Efficiency: (Pmax / Pin) * 100%
Material Selection and Recombination
The material used is silicon, specifically Silicon Ideal. When selecting the recombination, options include trap-assisted recombination, Shockley-Read-Hall (SRH), Auger, and radiative recombination. In the bulk case, these recombination processes are selected.
Switching to Silicon Bulk
Initially, the efficiency is around 12%. We predict that considering bulk recombination will decrease efficiency. Running the simulation confirms this:
- Efficiency decreased to 10% with bulk recombination.
Bulk and Surface Recombination
By selecting both bulk and surface recombination, which includes Auger, Shockley-Read-Hall, radiative, and surface recombination, the efficiency decreases further:
- Efficiency decreased to 0.5%.
- With only bulk recombination, efficiency is 10.8%.
- Without bulk and surface recombination, efficiency is 12%.
Conclusion
This simulation provides insights into different recombination processes, such as bulk and surface recombination. Notably, surface recombination between silicon-aluminum and silicon-silver is more significant than others.
Contact and Support
If you have any questions, please contact us at support@housing.com. We also offer training materials regarding numerical Zmax innovation and design. Thank you for your attention.
Solar cells simulation using Lumerical tools (Part 5 - Lumerical Charge - (I\_SC, V\_OC, FF, Efficiency)) So now our result is already calculated.
Let's open the "Script solar electrical results." This script calculates the open circuit voltage and short circuit current based on the voltage calculated in the solver. Here, the voltage and current are plotted. We calculate the absolute value of J multiplied by V as P and plot P value.
For instance, if I run the simulation, our open circuit voltage is around 6V, the short circuit current is around 22.24A, and the maximum power efficiency is around 12.3% with a factor of 0. 8. You can calculate the fill factor and efficiency by these equations.
As you see here, this is P max / (1.5 x G), which is the fill factor. And this is the efficiency. Now, if you look at the silicon material, you can see that the silicon is ideal. If you go to the material side and select silicon, you see that the recombination is disabled.
Let's select the bulk case, where the recombination, Shockley-Read-Hall, Auger, and radiative recombination are selected. Now let's switch the silicon case to Silicon bulk. Our efficiency is now around 12%. We predict that if we see the bulk recombination, our efficiency will decrease.
Let's check it. If you run this script again, you see that the value of efficiency has decreased to 10%. If I select silicon with both bulk and surface recombination, the efficiency will decrease further.
We now have a better idea regarding different recombination, such as bulk recombination, bulk recombination, and surface recombination. We see that the surface recombination between silicon, aluminum, and silicon, silver is larger than others.
If I run the simulation again, our efficiency is decreased to 0.5%. With only bulk recombination, our efficiency is 10.8%, and without bulk and surface recombination, our efficiency is 12%. Please ask your question. Contact us at support@housing.com if you have any questions.
We also have some training material regarding numerical simulation, innovation, and design. Thank you for your attention. Thank you.
