| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7898412 | Journal of the European Ceramic Society | 2018 | 10 Pages |
Abstract
The preparation of Eu3+-doped novel K2O-La2O3-Al2O3-SiO2 (KLAS)-based glass and transparent KLS (KLaSiO4) glass-ceramic (GC) nanocomposites is reported. Nanostructures of the transparent GCs were analyzed by FE-SEM, H(R)-TEM and SAED techniques. The average size of the crystallites is calculated using XRD data and found to be in the range 13-19â¯nm which is matched well with the average particle size observed from TEM images in the range 5-18â¯nm. Photoluminescence spectra of Eu3+ ions exhibit emission transitions of 5D0â¯ââ¯7Fj (jâ¯=â¯0 and 1-4) under the excitation at 394â¯nm. The emission spectra reveals up to 3-fold enhancement of luminescence performance of the KLS GC nanocomposites compared to as-prepared glass. This enhancement is caused due to entering of Eu3+ ions into the KLS crystal sites by replacing the La3+ ions. Such luminescence properties of KLS glass-ceramic nanocomposites could be a promising candidate as laser host for many laser devices.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Rishideo Kumar, Atiar Rahaman Molla, Anirban Chakrabarti, Anal Tarafder,