Zigzag graphene sheet DOS and bandstructure

[Heinz]

I have tried to calculate the bandstructure, DOS and transmission of the m=3 n=3 graphene nanosheet as attached.

The bandstructure gives .22eV bandgap but DOS shows much much bigger. Why is the difference and how can I correct it?

I used k=(1,1,100) and Ecutoff=150Ryd. You can also see the code attached. Your help is greatly apreciated.

[Umberto Martinez]

you need to specify the k-point sampling for the DOS in the DensityOfState block.
You can do it from the Script Generator or you can modify directly your script.
note, you should add k-points also in the B direction.