Effect of energy back transfer from Er3+ to Yb3+ ions on the upconversion luminescence of Er:NaYb(MoO4)2 and Yb,Er:NaBi(MoO4)2
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Under the excitation of a 980 nm laser, the visible upconversion (UC) luminescence of Er3+ ions doped Yb3+ ions self-activated NaYb(MoO4)2 phosphor and crystal, as well as the Yb3+/Er3+ ions codoped NaBi(MoO4)2 crystal were investigated comprehensively. The re... ...
