Lithium-aluminum-zinc phosphate glasses activated with Tb3+ and Tb3+/Eu3+ for green laser medium, reddish-orange and white phosphor applications

The Effect of Alkali-Fluoride on the Photoluminescence Properties of Tb3+ Doped on Phosphate Glass Medium

“…In the case of Tb 3+ ion-doped glasses, emissions below 480 nm are caused by 5 D3 (blue) levels, while emissions above 480 nm are caused by 5 D4 (green) levels. All transitions in the present work are cited from Carnall et al and several literature reviews [14,[28][29][30][31]. The decay time of Tb 3+ doped on phosphate glass medium were shown in Figure 5 under λex = 377 nm and λem = 543 nm.…”

“…However, the CCT values indicate that these glasses exhibit a "cold" region of light. Furthermore, the color purity of these glasses is 71-73%, which is higher than the European Broadcasting Union's illuminant green with a color purity of 65.6% [14,34]…”

“…The main problem why this research was conducted to find the suitable host material to enhance the photoluminescence properties of terbium ion (Tb 3+ ) doped phosphate glass. In previous studies, Tb 3+ ions were doped with silicate and boric oxide host materials which resulted in low luminescence intensity [13][14][15][16]. As well as several studies that only focus on energy transfer from rare earth ions, including Tb 3+ ions [17][18][19].…”

Li2O–Al2O3–ZnO–P2O5:Dy3+/Sm3+/Eu3+ glasses for solid-state yellow laser and color tunable phosphor applications

“…excitation and Sm 3? emission spectra in the overlap region were taken from the ones previously reported [20,23] and q a ¼ 1.4 Â 10 20 ions/cm 3 (Eu 3? activator ion concentration), is smaller than the R Ave interaction distance among Sm 3?…”

“…Recently, our group has reported that Li 2 O-Al 2 O 3 -ZnO-P 2 O 5 glasses activated with RE 3? ions can be interesting luminescent materials for application in W-LEDs, since the glasses are transparent in the NUV spectral region with the combination of lithium and aluminum, and melt at low temperature and exhibit long chemical durability with the incorporation of a high fraction of ZnO and a small fraction of Al 2 O 3 [20][21][22][23] could be a good candidate to emit laser yellow light under 348 nm excitation, and when it is co-activated with Sm 3? and Sm 3?…”