PbSe superlattice

[mithunp100]

how can i make a PbSe superlattice?

[zh]

A  superlattice usually consists of two or more materials.
Alternatively, if you want to build a supercell of PbSe, you can use the 'Supercell' tool in VNL.

[Umberto Martinez]

if instead you mean a superlattice made by PdSe nanoparticles
- import the PdSe structure from Builder database (or import your own file)
- create the nanocrystal with the Builder->Wullf Constructor
- Change the configuration from molecule to a bulk configuration and fit the cell.

[mithunp100]

thanks
some technical mistakes in my previous message.. 
nw i want to make PbSe/PbS superlattice. .....