volume 6, issue 68, P64072-64078 2016
DOI: 10.1039/c6ra09656e
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Abstract: Er 3+ /Yb 3+ co-doped MgWO 4 phosphor was synthesized by a solid state reaction method and the phase, photoluminescence and temperature sensing properties were analyzed. The phosphor has shown intense visible green emission via up-conversion process on near-infrared (980 nm) excitation and down-conversion process on 379 nm excitation and thus behaves as a dual-mode phosphor. In the UC and DC emission, the 2 H 11/2 → 4 I 15/2 and 4 S 3/2 → 4 I 15/2 transitions of the Er 3+ ion portray a temperature dependent b…

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