Effect of Sm3+ concentration and excitation wavelength on spectroscopic properties of GdPO4:Sm3+ phosphor

A novel reddish‐orange emitting NaSrBiTeO6:Sm3+ phosphor with high moisture resistance and thermostability for horticultural light emitting diode applications

“…The transitions of 4 G 5/2 -6 H 7/2 at 596 nm involve both electric and magnetic dipole contributions according to the selection rules, ΔJ = 0, ± 1. 39 The emission peak observed at 645 nm ( 4 G 5/2 -6 H 9/2 ) is derived from the electric dipole (ED) in nature. 40 The R/O ratio (I( 4 G 5/2 -6 H 9/2 , ED)/I( 4 G 5/2 -6 H 5/2 , MD) is utilized for further exploring the symmetry environment of trivalent Sm 3+ ions as an activator in the matrix.…”

Ln2F2(OH2)(MoO3)2(SeO3)2: Promising Multifunctional Nonlinear Optical Materials Created by Partial Fluorination Strategy under Corrosion Resistant Supercritical Reactions

“…This result is consistent with the previously reported for Sm 3+ ions in the red-orange range of the spectrum. [43] Eu 2 F 2 (OH 2 )(MoO 3 ) 2 (SeO 3 ) 2 : Eu 3+ is a well-known red phosphor [44] with a typical strong emission transition 5 D 0 → 7 F 2 at ≈612 nm with the red light emitting. The characteristic 5 D 0 → 7 F J (J = 0, 1, 2, 3, 4) transition peaks of Eu 3+ exist in compound Eu 2 F 2 (OH 2 )(MoO 3 ) 2 (SeO 3 ) 2 with the luminescence range around 580 nm for 5 D 0 → 7 F 0 , 593 nm for 5 D 0 → 7 F 1 , 617 nm for 5 D 0 → 7 F 2 , 651 nm for 5 D 0 → 7 F 3 and 696 nm for 5 D 0 → 7 F 4 transition (Figure 8b).…”

“…This result is consistent with the previously reported for Sm 3+ ions in the red‐orange range of the spectrum. [ 43 ]…”

High-efficiency energy transfer in the strong orange-red-emitting phosphor CeO2:Sm3+, Eu3+

“…In the typical two samples, the absorption bands from 250 nm to 300 are attributed to the charge transfer band from O 2− to Ce 4+ , similar to the PLE spectra of CeO 2 :0.04Sm 3+ . The highest absorption band around at 360 nm corresponds to the overlap between the 6 H 5/2 – 4 D 3/2 transition of Sm 3+ 28 and the charge transfer band (O 2− to Ce 4+ /Sm 3+ /Eu 3+ ) of the host lattice (sample CeO 2 :0.04Sm 3+ , 0.04Eu 3+ ). Fig.…”