Issue 2, 2018

Insight into Eu redox and Pr3+ 5d emission in KSrPO4 by VRBE scheme construction

Abstract

A series of Ln-doped KSrPO4 (Ln = Ce3+, Eu3+, Eu2+, Pr3+) phosphors are prepared through a high-temperature solid-state method. The KSrPO4 compound is confirmed to possess a β-K2SO4 structure with the Pnma group by Rietveld refinement, and the temperature-dependent lattice parameters are investigated with the powder X-ray diffraction results at different temperatures. Ce3+ and Eu3+ ions are introduced to probe the crystal field strength (CFS) and the lanthanide site symmetry by using VUV-UV-vis spectroscopy. The temperature-dependent luminescence properties of KSrPO4: Ce3+/Eu2+ exhibit an excellent thermal stability of Ce3+/Eu2+ luminescence. Based on the VUV-UV-vis spectra of Ce3+ and Eu3+ doped KSrPO4, the vacuum referred binding energy (VRBE) scheme is constructed to understand the redox properties of Eu, the 5d energy levels of Pr3+ and the thermal quenching characteristics of Ce3+ and Eu2+ luminescence.

Graphical abstract: Insight into Eu redox and Pr3+ 5d emission in KSrPO4 by VRBE scheme construction

Supplementary files

Article information

Article type
Paper
Submitted
11 Oct 2017
Accepted
13 Nov 2017
First published
14 Nov 2017

Dalton Trans., 2018,47, 306-313

Insight into Eu redox and Pr3+ 5d emission in KSrPO4 by VRBE scheme construction

R. Zhou, L. Lin, C. Liu, P. Dorenbos, Y. Tao, Y. Huang and H. Liang, Dalton Trans., 2018, 47, 306 DOI: 10.1039/C7DT03813E

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