Information about Slater Koster files

[achyuttt]

Which parameter set is suggested for the use of slater koster files for the band structure calculations of 2D Covalent Organic Frameworks?

My system contains elements like , Si, O , C , N, H, F and B

Please can someone give me an insights on how the slater koster files effects the calculation of Band_gaps in any system?

I am new to DFTB+ and trying to learn DFTB for my research purpose.