Publikace detail

Photoluminescence in Er-doped Ge?Ga?Se glasses

Rok: 2005

Druh publikace: článek v odborném periodiku

Název zdroje: Journal of Luminescence

Název nakladatele: Elsevier Science BV

Místo vydání: Amsterdam

Strana od-do: 92-96

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Fotoluminescence v erbiem dotovaných Ge-Ga-Se sklech	Byly studovány optické vlastnosti Ge-Ga-Se skel dotovaných erbiem.	Glasses; Optical properties; Photoluminescence
eng	Photoluminescence in Er-doped Ge?Ga?Se glasses	The optical properties of Er-doped Ge?Ga?Se glasses prepared by melt quenching techniques have been investigated. They were doped using Er2S3 and were stable as shown by temperature modulated differential scanning calorimetry. The influence of doping with Er on the photoluminescence, optical absorption and structural properties of Ge?Ga?Se glasses has been investigated and the strong correlation between the Er and Ga concentrations (CEr and CGa) and the properties of these glasses has been revealed. High CGa/CEr > 10 ensures the homogeneous distribution of Er in host volume. Low CGa/CEr < 3 leads to formation of chemical clusters found in the form of Er enriched crystalline inclusions. Intermediate region 3 < CGa/CEr <10 is characterized by the formation of ??physical clusters?? or ??clusters of interaction?? where the Er ions are not connected chemically but the energy can effectively migrate form one ion to another.	Glasses; Optical properties; Photoluminescence

Vyhledávání