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Density-functional tight-binding approach for metal clusters, nanoparticles, surfaces and bulk : application to silver and gold

J. Phys. Condens. Matter 2018, 30, 30

Density-functional based tight-binding (DFTB) is an efficient quantum mechanical method that can describe a variety of systems, going from organic and inorganic compounds to metallic and hybrid materials. The present topical review addresses the ability and performance of DFTB to investigate energetic, structural, spectroscopic and dynamical properties of gold and silver materials. After a brief overview of the theoretical basis of DFTB, its parametrization and its transferability, we report its past and recent applications to gold and silver systems, including small clusters, nanoparticles, bulks and surfaces, bare and interacting with various organic and inorganic compounds. The range of applications covered by those studies goes from plasmonics, molecular electronics, energy conversion and surface chemistry. Finally, perspectives of DFTB in the field of gold and silver surfaces and NPs are outlined.