projected local density of state, device density of state, local device density

[manoj]

what is physical significance of projected local density of state, device density of state, local device density and tutorial of calculation.

[Petr Khomyakov]

Density of states is used to analyze the electronic structure of materials and devices, e.g., see the following tutorial http://docs.quantumwise.com/casestudies/ag_si_interface/ag_si_interface.html. The projected local density of states allows one to analyze the electronic structure across the device, e.g., you can visualize band offset and band bending in heterostructures as well as  the mid-gap energy levels of defects if they exist in the device.