Oxyfluoro aluminum-borate host glass: interband gap study and estimation of radiative lifetime for luminescent dopant ions
El-Diasty, F; Abdel Baki, M. H.; Abdel-Wahab, Fathy;
Abstract
A series of new oxyfluoro aluminum-borate glasses can be used as upconversion host glass is prepared by the conventional melt-quenching technique. The effect of replacement lithium partner elements on the optoelectronic properties of the prepared glasses is studied. With increasing the ratio of LiF/LiF+Li2O the ionic character of the glass increases leading to a decrease in both of the average oscillator strength and the average interband oscillator. Fluctuation in Urbach energy is recorded which is attributed to a fluctuated structural disorder-induced broadening. The increase in LiF/LiF+Li2O molar ratio shortened the estimated radiative lifetime for luminescent dopant ions. The radiative life time decreased with decreasing the average glass molecular weight associated with an increase in the glass ion packing ratio.
Other data
| Title | Oxyfluoro aluminum-borate host glass: interband gap study and estimation of radiative lifetime for luminescent dopant ions | Authors | El-Diasty, F; Abdel Baki, M. H. ; Abdel-Wahab, Fathy | Keywords | Glass;Upconversion;Radiative Lifetime;BAND-GAP;EU3+ IONS;LITHIUM;POLARIZABILITY;CONDUCTIVITY;ENERGY;OXIDES | Issue Date | 2016 | Publisher | SPRINGER | Journal | Optical and Quantum Electronics | Volume | 48 | Issue | 273 | ISSN | 0306-8919 | DOI | 10.1007/s11082-016-0434-0 | Scopus ID | 2-s2.0-84962377321 | Web of science ID | WOS:000374106400015 |
Attached Files
| File | Description | Size | Format | Existing users please Login |
|---|---|---|---|---|
| Oxyfluoro aluminum borate host glass interband gap.pdf | 777.42 kB | Adobe PDF | Request a copy |
Similar Items from Core Recommender Database
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.