Engineering the De-localized States of Graphene Quantum Dots
arXiv:1602.03968 · doi:10.1103/PhysRevApplied.6.044014
Abstract
Employing a combination of many-body configuration interaction method described by extended Hubbard model along with first principle calculations we predict the emergence of high oscillator strength at near-IR region which originates from the Davydov type of splitting in doped graphene quantum dots (GQD). Incorporation of strain in GQD promotes closely spaced bright states inciting for coherent excitation. Controlling the destructive interference of the functionalized nano graphene quantum states, the dark states can be tuned towards red end ensuing the system as a good candidate for photocell whereas coherent states can be tailored to concentrate the light at very high intensity resulting an opportunity for photonic device
References in corpus (12)
- Boron nitride substrates for high-quality graphene electronics
- Graphene plasmonics
- Chaotic Dirac billiard in graphene quantum dots
- Graphane: a two-dimensional hydrocarbon
- Excitonic Effects on the Optical Response of Graphene and Bilayer Graphene
- Electron-Electron Interactions on the Edge States of Graphene: A Many Body Configuration Interaction Study
- A large-scale correlated study of linear optical absorption and low-lying excited states of polyacenes: Pariser-Parr-Pople Hamiltonian
- Delocalized Quantum States Enhance Photocell Efficiency
- Theory of Linear Optical Absorption in Diamond Shaped Graphene Quantum Dots
- Electronic properties of zigzag, armchair and their hybrid quantum dots of graphene and boron-nitride with and without substitution: A DFT study
- Edge Configurational Effect on Band Gaps in Graphene Nanoribbons
- Electric field control of the indirect magnetic coupling through a short graphene nanoribbon