Issue 25, 2017

Luminescence properties and energy transfer of YGa1.5Al1.5(BO3)4:Tb3+,Eu3+ as a multi-colour emitting phosphor for WLEDs

Abstract

A series of YGa1.5Al1.5(BO3)4:Tb3+,Eu3+ inorganic luminescence materials were successfully synthesized through a high-temperature solid-state reaction. Powder X-ray diffraction was used to confirm the crystal structure and phase purity of the obtained samples. Then, scanning electron microscopy elemental mapping was taken to characterize the distribution of the doped ions. Detailed investigations on the photoluminescence emission and excitation spectra and fluorescence lifetime revealed that trivalent europium ions can be well sensitized by trivalent terbium ions under near-ultraviolet excitation. Additionally, the energy transfer from Tb3+ to Eu3+ can be controlled to realize multi-colour emissions covering the green to red visible region. Concentration quenching does not take place in Tb3+ or Eu3+ singularly-doped YGAB due to its structure isolation. Therefore, satisfactory luminescence properties related to the structure specificity make these phosphors suitable for WLEDs.

Graphical abstract: Luminescence properties and energy transfer of YGa1.5Al1.5(BO3)4:Tb3+,Eu3+ as a multi-colour emitting phosphor for WLEDs

Supplementary files

Article information

Article type
Paper
Submitted
26 Mar 2017
Accepted
30 May 2017
First published
31 May 2017

J. Mater. Chem. C, 2017,5, 6294-6299

Luminescence properties and energy transfer of YGa1.5Al1.5(BO3)4:Tb3+,Eu3+ as a multi-colour emitting phosphor for WLEDs

J. Li, Z. Zhang, X. Li, Y. Xu, Y. Ai, J. Yan, J. Shi and M. Wu, J. Mater. Chem. C, 2017, 5, 6294 DOI: 10.1039/C7TC01285C

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