Excitonic effects and optical spectra of single-walled carbon nanotubes.
By C. Spataru, S. Ismail‐Beigi, L. Benedict, Steven G. Louie. Physical Review Letters, 2003
734 citations recorded by the source corpus.
Many-electron effects often dramatically modify the properties of reduced dimensional systems. We report calculations, based on an ab initio many-electron Green's function approach, of electron-hole interaction effects on the optical spectra of small-diameter single-walled carbon nanotubes. Excitonic effects qualitatively alter the optical spectra of both semiconducting and metallic tubes. Excitons are bound by approximately 1 eV in the semiconducting (8,0) tube and by approximately 100 meV in the metallic (3,3) tube. These large many-electron effects explain the discrepancies between previous theories and experiments.
Subfields: Materials Chemistry, Organic Chemistry
View Paper: https://www.semanticscholar.org/paper/c175d750b325898a0a5d47c9afc06edc18091c04
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Citations in the corpus
- Real-time observation of nonlinear coherent phonon dynamics in single-walled carbon nanotubes (2006, methodology): “4a, we show the change in tube radius dr with atom coordinate along tube Z axis calculated for the (7,6) tube shown in the inset.”
- GW method and Bethe–Salpeter equation for calculating electronic excitations (2016, background): “1 eV, respectively.(157) Rohlfing clarified the mechanism of exciton redshifts in carbon nanotubes caused by the environment such as nearby carbon nanotube and other physisorbates.”
- BerkeleyGW: A massively parallel computer package for the calculation of the quasiparticle and optical properties of materials and nanostructures (2011, methodology): “Over the last few decades, the ab initio GW methodology has been successfully applied to the study of the quasiparticle properties of a large range of material systems from traditional bulk semiconductors, insulators and metals to, more recently, nano-systems like polymers, nano-wires and molecules ”