Synthesis and luminescent properties of NaZnPO4:Eu3+ red phosphors for white LEDs

Color-tunable luminescence, energy transfer behavior and I–V characteristics of Dy3+,Eu3+ co-doped La(PO4) phosphors for WLEDs and solar applications

“…9, we can clearly see that the excitation spectrum has seven narrow bands around 325 nm, 350 nm, 364 nm, 388 nm, 428 nm, 454 nm and 475 nm. These excitation bands are ascribed due to 6 , respectively. The excitation bands at 350 nm, 364 nm and 388 nm match well with NUV excitations; and the excitation bands at 428 nm, 454 nm and 475 nm match well with blue excitation in LED chips, which are suitable excitations for WLEDs.…”

“…WLEDs can be used in vehicle headlights, digital displays, road lights, automotive displays, liquid crystal devices, public and residential lighting systems etc. [5][6][7] The role of luminescent materials is important in the development of lighting devices, and they show great potential for high-performance display applications such as with WLEDs.…”

“…Phosphate based host materials show excellent benefits, like low synthesis temperature, high chemical and thermal stability, high light efficiency, easy fabrication and low fabrication cost etc. 6,16,25,27,28 In this investigation, we have synthesized Eu 3+ , Dy 3+ doped and co-doped La(PO 4 ) phosphors. The obtained results of this investigation revealed color tunable luminescence by varying the concentration of Eu 3+ ions.…”

A red-emitting Sr3La(1−x)Eux(AlO)3(BO3)4 phosphor with high thermal stability and color purity for near-UV-excited wLEDs

“…So far, researchers have synthesized a variety of Eu 3+ ion-doped phosphor materials with different hosts, such as tungstate, molybdate, uoride, aluminate, oxide and phosphate. [21][22][23][24][25][26] In this work, we have calcined the red-emitting Sr 3 -La(AlO) 3 (BO 3 ) 4 :Eu 3+ phosphor. The relatively internal quantum efficiency (IQE) and color purity can attain to 40% and 92.40% severally with a desired doping concentration of 60 mol% Eu 3+ ion.…”

Red-light-emitting polymer composite based on PVDF membranes and Europium phosphor using Buriti Oil as plasticizer

“…Trivalent Europium ions, Eu 3+ , have been largely studied because of their long luminescence lifetime, high efficiency and narrow emission bands in the visible region, especially in the red [8]. All these characteristics infer to Europium based phosphors a wide range of applications as full-color displays, tunable lasers or light-emitting diodes [9]. Eu 3+ -doped materials can be effectively excited by UV and blue light yielding strong red emission assigned to the 5 D 0 → 7 F 0-6 set of transitions, especially the hypersensitive transition, 5 D 0 → 7 F 2 [10].…”