Preparation and luminescent characteristics of Sr3RE2(BO3)4:Dy3+ (RE=Y, La, Gd) phosphors for white LED

Photoluminescence and time-resolved luminescence spectroscopy of novel NaBa4(BO3)3:Tb3+ phosphor

“…Borates are good matrix for rare earth ions activated phosphors due to their low synthesis temperature, easy preparation and high luminescence efficiency [3,[16][17][18][19]. The stoichiometric formula of borates MM 4 (BO 3 ) 3 (where M = Li + , Na + or K + and M = Ca 2+ , Sr 2+ or Ba 2+ ) have been reported by Wu et al MM' 4 (BO 3 ) 3 belongs to orthorhombic or cubic structure depending on the kind of cations [20,21].…”

Synthesis and characterization of YNbTiO6:Dy3+ phosphor

“…The CIE coordinates of composition- optimized (Y 0.9 Dy 0.1 )NbTiO 6 phosphor is at (0.385, 0.411) under 365 nm excitation. As mentioned above, 4 F 9/2 -6 H 13/2 transition of Dy 3+ belongs to hypersensitive transitions and the intensity is strongly influenced by the surrounding environment around the Dy 3+ , while the intensity of 488 nm is less sensitive to the host [8,20,21]. However, the ratio of 4 F 9/2 -6 H 15/2 transition to 4 F 9/2 -6 H 13/2 transition (B/Y) is almost constant over the full range of Dy 3+ concentration in this host, which indicates that high concentration of Dy 3+ does not greatly change surrounding environment.…”

Spectral and thermal properties of Dy3+-doped NaGdTiO4 phosphors

“…In recent years, white light emitting diodes (WLEDs) have received lots of attention driven by their potential applications in the fields of panel display, field-emission display and solidstate lighting (SSL) owing to their superior properties, such as energy saving, reliability and safety [1][2][3][4][5][6][7]. White light can be generated in several manners, and the most common route for obtaining white light is to combine the blue light from GaN-based LED and the yellow light from YAG:Ce 3+ phosphor excited by GaN LED.…”