2 documents found, page 1 of 1
Narrow optical gap ferroelectric Bi2ZnTiO6 thin films deposited by RF sputtering
Figueiras, Fábio G.; Fernandes, J. Ramiro A.; Silva, J. P. B.; Alikin, Denis O.; Queirós, Eugénia C.; Bernardo, César Rui Freitas; Barcelay, Y. R.This work reports the deposition of single phase Bi2ZnTiO6 thin films onto Pt/Si-based substrates using the RF-sputtering method and the respective structural, morphological, optical and local ferroelectric characterization. The thin film grows in the polycrystalline form with tetragonal P4mm symmetry identified by X-ray diffraction. The lack of a spatial inversion centre was confirmed by the second harmonic ge...
Energy transfer via exciton transport in quantum dot based self-assembled super...
Bernardo, César Rui Freitas; Belsley, M.; Coutinho, Paulo J. G.; Schellenberg, Peter Michael; Moura, Isabel; Núñez Fernández, YurielWe fabricated dendrite-type superstructures of fractal dimension consisting of CdSe/ZnS & CdTe capped nanodots. These structures were studied using microscopic fluorescence intensity imaging as well as spectral and lifetime mapping.