6533b82efe1ef96bd1293f0f
RESEARCH PRODUCT
Thermoelectric properties of atomic-thin silicene and germanene nano-structures
Andrés CantareroS. CahangirovRoberto D'agostaRoberto D'agostaAngel RubioKaike Yangsubject
NanostructureGermaneneMaterials scienceCondensed Matter - Mesoscale and Nanoscale PhysicsSiliconCondensed matter physicsSilicenebusiness.industrychemistry.chemical_elementFOS: Physical sciencesGermaniumCondensed Matter PhysicsElectronic Optical and Magnetic MaterialschemistryThermoelectric effectNano-Mesoscale and Nanoscale Physics (cond-mat.mes-hall)Figure of meritOptoelectronicsbusinessdescription
The thermoelectric properties in one- and two-dimensional silicon and germanium structures have been investigated using first-principles density functional techniques and linear response for the thermal and electrical transport. We have considered here the two-dimensional silicene and germanene, together with nanoribbons of different widths. For the nano ribbons, we have also investigated the possibility of nano structuring these systems by mixing silicon and germanium. We found that the figure of merit at room temperature of these systems is remarkably high, up to 2.5.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-01-01 |