| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1484532 | Journal of Non-Crystalline Solids | 2008 | 6 Pages |
Abstract
The formation of structural units in Ge–Ga–S glass with CsBr addition and its effect on the optical band gap and several spectroscopic properties of Ho3+ were investigated. The optical band gap of the host glasses and the oscillator strengths of Ho3+ absorption decreased sharply when the ratio of CsBr/Ga became close to unity. These property changes were associated with the formation of structural units of [GaS3/2Br]− and they have a crucial effect on the changes of the local structure around Ho3+ ions. The local structure was not sensitive to the As or Br addition but was critically dependent on the concentration of CsBr.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Tae Hoon Lee, Yong Kon Kwon, Jong Heo,