Energy transfer and colorimetric properties of Eu3+/Dy3+ co-doped Gd2(MoO4)3 phosphors

Energy transfer based emission analysis of Dy3+/Eu3+ co-doped ZANP glasses for white LED applications

“…Based on the results obtained from the luminescence intensity of Dy 3+ doped ZANP glass, the optimized concentration of Dy 3+ is 0.5 mol% and this is used for co-doping with Eu 3+ using 0.1, 0.5, 1.0 and 1.5 mol% additions. The initial criterion for energy transfer is the spectral overlap of acceptor (Eu 3+ ) absorption and donor (Dy 3+ ) fluorescence [35,36]. In the present work, the absorption band 7 F 0 → 5 D 2 (465 nm) of Eu 3+ is overlapped with the emission transition 4 F 9/2 → 6 H 15/2 (484 nm) of Dy 3+ ion in visible region of 450-500 nm as shown in Figure 4.…”

Concentration-dependent luminescence and energy transfer of flower-like Y2(MoO4)3:Dy3+ phosphor

“…Recently, RE 3+ doped molybdates are also studied widely on the purpose of seeking for novel luminescence materials for W-LEDs due to the special properties of MoO 4 2− group [4,[22][23][24]. As well known, MoO 4 2− group has strong absorption in the near UV region.…”

Spectral and thermal properties of Dy3+-doped NaGdTiO4 phosphors

“…Trivalent dysprosium ion (Dy 3+ ) as a promising activator for white light emitting materials has been extensively studied due to its peculiar blue and yellow emission bands in the emission spectrum [11][12][13][14][15][16][17]. The blue band centered at around 484 nm corresponds to the 4 F 9/2 → 6 H 15/2 transition, and the yellow band located at around 575 nm corresponds to the hypersensitive transition 4 F 9/2 → 6 H 13/2 .…”