| Autor: |
Rimbach, A. Charlotte, Steudel, Franziska, Ahrens, Bernd, Schweizer, Stefan |
| Předmět: |
|
| Zdroj: |
Physics & Chemistry of Glasses: European Journal of Glass Science & Technology Part B; Apr2018, Vol. 59 Issue 2, p93-96, 4p |
| Abstrakt: |
The ratio between the network modifier Li2O and the network former B2O3 has a significant influence on the structural and optical properties of Dy3+-doped lithium borate glass. Differential scanning calorimetry shows that upon increasing the modifier-to-former ratio (Li2O-to-B2O3) in favour of Li2O, the glass transition temperature increases up to a maximum value of 502°C for the 1:3 sample, while the crystallization temperature decreases linearly from 653 to 534°C. Raman spectroscopy confirms the highest network connectivity for the glass with a modifier-to-former ratio of 1:3. Under ultraviolet excitation, Dy3+ shows emission lines in the visible spectral range, the most intense ones at 484 and 575 nm. The absolute photoluminescence quantum efficiency is best for the glass with a modifier-to-former ratio of 1:6. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
