Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

The reported anomalous emission intensity of the D-5(0) -> F-7(4) transition of Eu3+ in a molybdate double perovskite

Language

English

Abstract

© The Royal Society of Chemistry 2015.The assigned anomalous upconversion emission intensity of the 5D0 → 7F4 transition of Eu3+ in the double perovskite Sr2Ca(W1-xMox)O6 co-doped with Yb3+ is shown to be due to a transition metal impurity present in the MoO3 starting material. Relevant literature shows that the highest energy 5D0 → 7F4 transition is at a longer wavelength than 685 nm in molybdates. Cases of anomalous intensity of this transition are reviewed. Our 360 nm excited emission spectra of Sr2Ca0.88-Eu0.02Yb0.04Li0.06MoO6 show a very weak 5D0 → 7F4 transition, but on co-doping with Mn a structured band between 640 and 710 nm is observed due to Mn4+.

Publication Date

2015

Source Publication Title

Journal of Materials Chemistry C

Volume

3

Issue

5

Start Page

960

End Page

963

Publisher

Royal Society of Chemistry

DOI

10.1039/c4tc02490g

Link to Publisher's Edition

http://dx.doi.org/10.1039/c4tc02490g

ISSN (print)

20507526

ISSN (electronic)

20507534

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