Abstract

Tm doped GdOBr compounds were successfully synthesized through solid-state method. Then bromide ion in the as-synthesized compounds Gd0.97Tm0.03OBr was exchanged by P-toluene sulfonate ion in P-toluene sulfonate sodium solution. A sol-solution was obtained after the ultrasound treatment of intercalating sample in formamide solution. In addition, many rare-earth metal elements can launch visible light when excited. The emissions of Tm3+ at 478nm originated from the transition of Tm3+(1G4→3H6) was observed.

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