Issue 6, 2017

Crystallization and optical properties of Tm3+/Yb3+-co-doped KLaF4 glass-ceramics

Abstract

Nanocrystallization of KLaF4 in a 70 SiO2–7 Al2O3–16 K2O–7 LaF3 (mol%) glass co-doped with 0.2 mol% Tm2O3 and 0.5 mol% YbF3 was achieved by heat treatment above the glass transition temperature. KLaF4 nanocrystals of 6 nm precipitated and the crystal size was constant from 10 to 150 h of annealing time. The crystalline fraction achieved was very low, due to the drastic effect of the addition of dopants. The optical characterization of the obtained transparent glass and glass-ceramic showed a blue up-conversion emission due to an energy transfer mechanism involving two photons. However, there were no significant differences in the optical features between glass and glass-ceramic due to a low-crystallization degree. The role of dopant ions in the crystallization mechanism has been discussed.

Graphical abstract: Crystallization and optical properties of Tm3+/Yb3+-co-doped KLaF4 glass-ceramics

Article information

Article type
Paper
Submitted
23 Aug 2016
Accepted
07 Jan 2017
First published
09 Jan 2017

CrystEngComm, 2017,19, 967-974

Crystallization and optical properties of Tm3+/Yb3+-co-doped KLaF4 glass-ceramics

A. de Pablos-Martín, D. Ristic, A. Durán, M. Ferrari and M. J. Pascual, CrystEngComm, 2017, 19, 967 DOI: 10.1039/C6CE01845A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements