Tight-binding approach to time-dependent density-functional response theory
- 6 February 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 63 (8), 085108
- https://doi.org/10.1103/physrevb.63.085108
Abstract
In this paper we propose an extension of the self-consistent charge-density-functional tight-binding (SCC-DFTB) method [M. Elstner et al., Phys. Rev. B 58, 7260 (1998)], which allows the calculation of the optical properties of finite systems within time-dependent density-functional response theory (TD-DFRT). For a test set of small organic molecules low-lying singlet excitation energies are computed in good agreement with first-principles and experimental results. The overall computational cost of this parameter-free method is very low and thus it allows us to examine large systems: we report successful applications to and the polyacene series.
Keywords
This publication has 74 references indexed in Scilit:
- Application of time-dependent density-functional theory to the dielectric function of various nonmetallic crystalsPhysical Review B, 2000
- Ab initioabsorption spectra of gallium arsenide clustersPhysical Review B, 1999
- Comment on “Quantum Confinement and Optical Gaps in Si Nanocrystals”Physical Review Letters, 1999
- Ab InitioPhotoabsorption Spectra and Structures of Small Semiconductor and Metal ClustersPhysical Review Letters, 1996
- Hill and Whaley Reply:Physical Review Letters, 1996
- Ultraviolet-visible absorption spectrum of C60 vapor and determination of the C60 vaporization enthalpyThe Journal of Chemical Physics, 1994
- Collective plasmon excitations inclustersPhysical Review Letters, 1991
- Size-dependent photoabsorption and photoemission of small metal particlesPhysical Review B, 1985
- The Near Ultraviolet Absorption Spectrum of Propargyl Aldehyde1Journal of the American Chemical Society, 1958
- The Electronic Spectra of Cata-Condensed HydrocarbonsThe Journal of Chemical Physics, 1954