Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1543535 | Physica E: Low-dimensional Systems and Nanostructures | 2016 | 6 Pages |
We present first principles study of thermoelectric transport properties of sandwiched heterostructure of Graphene (G)/hexagonal Boron Nitride (BN)/G, based on Boltzmann transport theory for band electrons using the bandstructure calculated from the Density Functional Theory (DFT) based plane-wave method. Calculations were carried out for three, four and five BN layers sandwiched between Graphene layers with three different arrangements to obtain the Seebeck coefficient and Power factor in T∼25–400K range. Moreover, using Molecular Dynamics (MD) simulations with very large simulation cell we obtained the thermal conductance (K) of these heterostructures and obtained finally the Figure-of-Merit (ZT). These results are in agreement with recently reported experimental measurements.