257 citations · 808 across the 16 of their papers we have counts for
5 papers · 1 filter
CO2 Laser-Induced Growth of Epitaxial Graphene on 6H-SiC(0001)
Spyros N. Yannopoulos, Angeliki Siokou, Nektarios K. Nasikas +3
The thermal decomposition of SiC surface provides, perhaps, the most promising method for the epitaxial growth of graphene on a material useful in the electronics platform. Current…
Photoplastic effects in chalcogenide glasses: A review
S. N. Yannopoulos, M. L. Trunov
A synopsis of the various photoinduced changes of rheological, mechanical and elastic properties is presented in the first part of the article. After a critical appraisal of a larg…
Colossal photostructural changes in chalcogenide glasses. Athermal photoinduced polymerization in AsxS100-x bulk glasses revealed by near-bandgap Raman scattering
F. Kyriazis, S. N. Yannopoulos
Near-bandgap Raman scattering was used to induce and study photostructural changes in AsxS100-x bulk glasses revealing a new photoinduced polymerization effect. Raman spectra were…
Effect of cluster size of chalcogenide glass nanocolloidal solutions on the surface morphology of spin-coated amorphous films
T. Kohoutek, T. Wagner, M. Frumar +3
Amorphous chalcogenide thin film deposition can be achieved by a spin-coating technique from proper solutions of the corresponding glass. Films produced in this way exhibit certain…
Raman scattering study of the a-GeTe structure and possible mechanism for the amorphous-to-crystal transition
K. S. Andrikopoulos, S. N. Yannopoulos, G. A. Voyiatzis +3
We report on an inelastic (Raman) light scattering study of the local structure of amorphous GeTe films. A detailed analysis of the temperature-reduced Raman spectra has shown that…