Spectral and CIE parameters of red emitting Gd3Ga5O12:Eu3+ phosphor

Structural and luminescent studies of erbium‐doped CaZrO3 green‐emitting nanophosphors

“…From the CIE chromaticity coordinates, the prepared powdered samples were located in the green region with the coordinates (0.305, 0.510), (0.309, 0.508) and (0.305, 0.532) for 0.5, 1.0 and 1.5 wt% Er, respectively. These values change very little with the concentration …”

Synthesis and luminescence characterization of Eu3+-activated Na3La8V3O21 as a red-emitting phosphor

“…3. It can be seen that the phosphors have a strong absorption band in the range of 200-390 nm, which is mainly ascribed to the well-known charge-transfer (CT) transitions from O 2 À to V 5 þ ions in VO 4 3− tetrahedral groups. The molecular orbitals of V 5 þ ion are expressed as a ground 1A 1 state and excited 1T 1 , 1T 2 , 3T 1 , and 3T 2 states in VO 4 .…”

“…This attributes to the position of the 4f electrons of RE doped in a compound [2][3][4][5][6]. Among all the RE ions, Eu 3 þ is one of the most popular ions for its efficient f-f transitions in red-emitting wavelength region, which has been widely investigated in many hosts such as molybdates [7,8], tungstates [9], phosphate [10], vanadates [11,12], etc.…”

“…Eu 3 þ -doped orthovanadates have been intensively investigated because of the advantages including excellent physical and chemical stabilities and long-wavelength excitation properties. For example, Eu 3 þ -doped rare-earth orthovanadate RVO 4 :Eu 3 þ (R¼La 3 þ , Gd 3 þ , Y 3 þ , Lu 3 þ ) is known as an excellent phosphor with bright red emission [18][19][20]. YVO 4 :Eu 3 þ is a commercially available red phosphor for high pressure Hg-lamps, which can efficiently convert 314-365 nm photons into red light and maintain highly efficient luminescence at high temperature [21].…”

Temperature‐controlled down‐conversion luminescence behavior of Eu3+‐doped transparent MF2 (M = Ba, Ca, Sr) glass ceramics

“…Recently, the luminescence of rare earth (RE) ions has been widely studied because of its interesting optical properties and REs may have application in new photonic technologies due to the properties of 4f electrons in a RE‐doped compound . One of the most studied RE 3+ ions, Eu 3 + , shows intense red photoluminescence upon UV irradiation and has applications in fluorescent lamps, colored lighting and optoelectronic devices .…”