Delocalization of dark and bright excitons in flat-band materials and the optical properties of V2O5

Delocalization of dark and bright excitons in flat-band materials and the optical properties of V2O5

The simplest picture of excitons in materials with atomic-like localization of electrons is that of Frenkel excitons, where electrons and holes stay close together, which is associated with a large binding energy. Here, using the example of the layered oxide V2O5, we show how localized charge-transf...

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Bibliographic Details
Main Authors: Feneberg, M. (Author), Gatti, M. (Author), Goldhahn, R. (Author), Gorelov, V. (Author), Lambrecht, W.R.L (Author), Reining, L. (Author), Schleife, A. (Author)
Format: Article
Language:English
Published: Nature Research 2022
Subjects:
Anisotropy
Binding energy
Calculations
Charge transfer
Charge-transfer excitations
Crystal structure
Delocalizations
Electron hole
Electrons and holes
Excitons
Flat band
Frenkel excitons
Layered oxides
Localisation
Localised Charges
Optical properties
Perturbation techniques
Simple++
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