Juwelmojumder1
Subscriber

Hi,


The non-gray radiation model offers your model more practical. Hereby, the higher the number of bands higher the accuracy. Typically should not go higher than 6-10, which makes compatible in terms of computational cost. Again, it will depend on geometry types. The optical properties of your solar cell significantly matter in your DO modeling. You have to calculate it based on what types of cell material you are using. 


https://refractiveindex.info/?shelf=glass&book=HIKARI-BK&page=J-BK7


You may follow the above link to extract some material properties, but you might need to calculate further to get the absorption coefficient of the cell materials. 


the absorption coefficient of solid is analytically calculated, and you will need a complex refractive index of the material. 


you may find interesting in...


https://www.sciencedirect.com/science/article/pii/S0196890418300062


Thanks 


Juwel