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4 papers
Emission Redshift in DCM2-Doped Alq Caused by Non-Linear Stark Shifts and Förster-Mediated Exciton Diffusion
Graziâni Candiotto, Ronaldo Giro, Bruno A. C. Horta +5
Organic light-emitting diodes (OLEDs) devices in the archetype small molecule fluorescent guest-host system tris(8-hydroxyquinolinato) aluminum (Alq) doped with 4-(dicyanomet…
Structural analysis of polycrystalline graphene systems by Raman spectroscopy
J. Ribeiro-Soares, M. E. Oliveros, C. Garin +12
A theoretical model supported by experimental results explains the dependence of the Raman scattering signal on the evolution of structural parameters along the amorphization traje…
Raman-scattering study of the phonon dispersion in twisted bi-layer graphene
J. Campos-Delgado, L. G. Cançado, C. A. Achete +2
Bi-layer graphene with a twist angle θ between the layers generates a superlattice structure known as Moiré pattern. This superlattice provides a θ-dependent q wavevector that acti…
Quantifying defects in graphene via Raman spectroscopy at different excitation energies
L. G. Cançado, A. Jorio, E. H. Martins Ferreira +7
We present a Raman study of Ar(+)-bombarded graphene samples with increasing ion doses. This allows us to have a controlled, increasing, amount of defects. We find that the ratio b…