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Issue 5, 2015
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The reported anomalous emission intensity of the 5D07F4 transition of Eu3+ in a molybdate double perovskite

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Abstract

The assigned anomalous upconversion emission intensity of the 5D07F4 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 5D07F4 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 Sr2Ca0.88Eu0.02Yb0.04Li0.06MoO6 show a very weak 5D07F4 transition, but on co-doping with Mn a structured band between 640 and 710 nm is observed due to Mn4+.

Graphical abstract: The reported anomalous emission intensity of the 5D0 → 7F4 transition of Eu3+ in a molybdate double perovskite

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Publication details

The article was received on 02 Nov 2014, accepted on 16 Dec 2014 and first published on 19 Dec 2014


Article type: Communication
DOI: 10.1039/C4TC02490G
J. Mater. Chem. C, 2015,3, 960-963

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    The reported anomalous emission intensity of the 5D07F4 transition of Eu3+ in a molybdate double perovskite

    W. Chan, Z. Liu, S. Lu, P. A. Tanner and K. Wong, J. Mater. Chem. C, 2015, 3, 960
    DOI: 10.1039/C4TC02490G

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