Sensitization of neodymium ion luminescence by divalent tin

Spectroscopic properties of Sm-containing yttrium-aluminoborate glasses and analogous huntite-like polycrystals

“…This fact may be caused by initial segregation of Sm 3þ ions into structural defects of huntite microcrystals or by luminescence quenchers which form complexes with the activators. In this regard, we remark that (1) similar defect centers formation by the rare-earth activators in huntite polycrystals was recently shown [22] by the example of EuAl 3 (BO 3 ) 4 (2) the role of quenchers may be played by triply-charged iron impurities in [FeO 6 ] polyhedrons, which are characterized by excited states at 20,000 and 15,380 cm À1 [23].…”

Near-UV sensitized 1.06 μm emission of Nd3+ ions via monovalent copper in phosphate glass

“…Ultimately, under excitation at 360 nm and longer wavelengths, the emission spectra for the glass display single-band behavior in agreement with emission arising merely from the Cu þ ions [20]. The sensitization of neodymium ions luminescence by divalent tin was reported by Malashkevich et al [7]. Henceforth, the focus is on assessing the effect of the Cu þ ions.…”

“…Hence, in view of the technological relevance, which nowadays includes helping meet global energy demands, several research groups have investigated on the effects (e.g. sensitizing) of adding co-dopants such as Cr 3þ [6], Sn 2þ [7], and semiconductor [8] or metallic nanoparticles [9e11], to Nd 3þ -containing glass matrices.…”

Luminescence of borogermanate glasses activated by Er3+ and Yb3+ ions

“…According to [5] it is possible to increase essentially the probability of the 4 I 11/2~→ 4 I 13/2 transition by B 2 O 3 addition at rather a small η decrease in transition 4 I 13/2 → 4 I 15/2 of Yb-Er-containing aluminosilicate glasses. The B 2 O 3 addition is of special interest for germanate glasses that surpass phosphate and other non-silicate glasses in physical and chemical properties.…”

“…α = 1 (1, 3, 4, and 6) Kinetics of luminescence decay (a) and its rise (b) of Er 3+ ions in co-activated (1-4 and 6) and one-activated (5) glasses 1 (1, 6), 3 (2), 7 (3), 8 (4), and 9 (5). λ exc = 910 (a, 6) and 532 nm(5). λ rec =1550 nm.…”