Glass-ceramics (GCs) are constituted by nanometer-to-micron-sized crystals embedded in a
glass matrix; usually, their structural or functional elements (clusters, crystallites or …

Abstract Amorphous germania (a-GeO 2) is an excellent glass former of great industrial and
scientific importance. However, in comparison with a-SiO 2, its structure and fundamental …

Alloying of Cu2ZnSnS4 (CZTS) with Ge can potentially promote grain growth and suppress
the formation of Sn‐related defects. Herein, a two‐step fabrication route based on …

In this theoretical study we investigate the electronic, optical, and photocatalytic properties of
monolayer titanium dioxide (TiO2), nickel dioxide (NiO2), and germanium dioxide (GeO2) …

We report low optical loss germanium oxide (GeO 2) thin films which have been deposited
by low pressure ion-assisted alternating current dual magnetron sputtering of germanium …

In this study, GeO x films were produced by radio frequency magnetron sputtering (RFMS)
under varying oxygen percentages. The structural and optical properties of films grown have …

In this thesis, group IV material oxides for silicon photonics applications were deposited
using novel deposition techniques. Erbium and terbium doped silicon oxide thin films were …

Transparent glass-ceramics, activated by luminescent species, present an important class of
photonic materials because their specific optical, spectroscopic and structural properties …

Abstract In this study, Barium Germanium glasses were prepared with a composition of
xBaO-(72-x) GeO 2-8La 2 O 3-20ZnO where x= 16.0, 18.0, 20.0, 22.0 and 24.0 mol …

Computation of highly-localized multiplet energy levels of transition metal dopants is
essential to the design of materials such as laser host crystals. A purely first-principles …