A chemical strategy to improve the fluorescence environments of erbium-ions doped into organically modified hybrid glasses for laser amplifier applications

Bridged polysilsesquioxanes, a class of hybrid organic/inorganic siloxanes, are employed to manipulate the fluorescence environments of rare-earth metal ions. The performance of silsequioxanes containing rare-earth ions in optical devices significantly relies on host materials’ properties. We have d...

Full description

Saved in:
Bibliographic Details
Published in:Materials chemistry and physics 2007-05, Vol.103 (1), p.176-182
Main Author: Choi, Kyung M.
Format: Article
Language:English
Subjects:
Rear-earth amplifier, Sol–gel hybrid glasses, Laser amplifications
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Bridged polysilsesquioxanes, a class of hybrid organic/inorganic siloxanes, are employed to manipulate the fluorescence environments of rare-earth metal ions. The performance of silsequioxanes containing rare-earth ions in optical devices significantly relies on host materials’ properties. We have developed organically modified fluoroalkylene-bridged polysilsesquioxanes doped with Er 3+/CdSe nano-particles. Solid state silicon NMR analysis of undoped xerogels indicate an enhanced condensation in fluorinated xerogel compared to that of alkylene-bridged silsesquioxanes. Fluoroalkylene-bridged xerogel containing Er 3+-ions shows significantly reduced absorptions at the 1540 nm by reducing amounts of uncondensed hydroxyl groups. The presence of CdSe nano-particles influences the fluorescence environment of Er 3+-ions in different glassy hosts, resulting in the increased fluorescence intensity.
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2007.02.012