| Téléchargement | - Voir la version de l’auteur : Crumpled few-layer graphene: connection between morphology and optical properties (PDF, 1.1 Mio)
|
|---|
| DOI | Trouver le DOI : https://doi.org/10.1016/j.carbon.2021.06.052 |
|---|
| Auteur | Rechercher : Musikhin, StanislavIdentifiant ORCID : https://orcid.org/0000-0002-0199-6095; Rechercher : Talebi-Moghaddam, Sina; Rechercher : Corbin, Joel C.1Identifiant ORCID : https://orcid.org/0000-0002-2584-9137; Rechercher : Smallwood, Greg J.1Identifiant ORCID : https://orcid.org/0000-0002-6602-1926; Rechercher : Schulz, Christof; Rechercher : Daun, Kyle J.Identifiant ORCID : https://orcid.org/0000-0001-9611-7462 |
|---|
| Affiliation | - Conseil national de recherches du Canada. Centre de recherche en métrologie
|
|---|
| Format | Texte, Article |
|---|
| Sujet | crumpled few-layer graphene; absorption coefficient; mass absorption cross-section; graphene aerosol; discrete dipole approximation |
|---|
| Résumé | Comprehensive characterization of crumpled graphene materials is required to understand their morphologically dependent properties. This study connects the optical properties of crumpled few-layer graphene (FLG) aerosols and colloidal suspensions with particle morphology. The mass absorption cross-section (MAC) of crumpled FLG was measured in the aerosol phase and it is shown that such aerosols absorb visible light more efficiently than soot aerosols. The UV–Vis spectra of FLG suspensions in ethanol were correlated with the mean nanoparticle layer number and the lateral size. The measured optical properties were also simulated using discrete dipole approximation (DDA) applied to volume-reconstructed particles with refractive indices of graphene and graphite from literature. The measurements were more closely reproduced using the refractive index of graphite pellets rather than flat graphene on a substrate. Moreover, we show that a simpler Rayleigh–Debye–Gans (RDG) model can predict the wavelength dependence of the crumpled FLG absorption cross-section. |
|---|
| Date de publication | 2021-06-18 |
|---|
| Maison d’édition | Elsevier |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Publications évaluées par des pairs | Oui |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | 3a0e844f-2de6-4413-b8d2-7269a2edae55 |
|---|
| Enregistrement créé | 2021-10-04 |
|---|
| Enregistrement modifié | 2021-10-04 |
|---|
