A potential red-emitting phosphor Na2.5Zr2Si1.5P1.5O12: Eu3+ for WLEDs with excellent thermal stability, color purity and high quantum efficiency

Thermal-stability synergy improvement of Sm3+ and Eu3+ in Ca3.6In3.6(PO4)6: the effect of local symmetry

“…Under 396 nm excitation, the IQE of CI 1− x − y P:0.05Eu 3+ ,0.04Sm 3+ phosphors reached 82.8%, which was higher than those of other red phosphors, such as NaLaP 4 O 12 :Sm 3+ (IQE = 38.8%), Na 2.5 Zr 2 Si 1.5 P 1.5 O 12 :Eu 3+ (IQE = 72.14%), and Li 3 Ba 2 La 3 (WO 4 ) 8 :Eu 3+ , Sm 3+ (IQE = 53%), etc. 15,44,45 As a preliminary application, CI 1− x − y P:0.05Eu 3+ ,0.04Sm 3+ phosphor was used to fabricate the LED chip to further prove its potential application for WLEDs. Fig.…”

“…The value of the IQE is calculated as follows: 35 where L S represents the emission spectrum of CI 1ÀxÀy (IQE = 53%), etc. 15,44,45 As a preliminary application, CI 1ÀxÀy P: 0.05Eu 3+ ,0.04Sm 3+ phosphor was used to fabricate the LED chip to further prove its potential application for WLEDs. Ra value (86.9) and low CCT (4694 K).…”

Ce3+–Eu2+ Co-doped BaCa13Mg2(SiO4)8 cyan phosphor—ultra-high energy transfer efficiency for white light emitting diodes

“…1(c), where the broad absorption band near 300 nm originates from the absorption of the host. On the basis of the DRS data, the optical band gap ( E g ) can be approximately obtained using eqn (2): 27 ( αhv ) n = A ( hv − E g )where hν means the incident photon energy, and α stands for the absorption coefficient. A represents a constant.…”

Effect of Eu3+ doping on the structural, optical, and photoluminescent properties of LiGa5O8 phosphor

“…The color purity was also observed to be significantly higher, with some recent studies achieving a high quantum efficiency. 55,56 The photonic emission with such properties makes this material a feasible candidate for use in tricolor lamps and LED applications.…”