Luminescence properties of CdSiO3:Mn2+ phosphor

Synthesis of CdSiO3 powder by sol–gel method

“…The impurity (2Â = 32 • , 35 • ) was found to be present in the powders for 45 min-3 h, and it disappeared for 4 h. Therefore, the shortest synthesizing time was 4 h for obtaining a pure phase of CdSiO 3 . Because, in our work, the powders were prepared using Cd(NO 3 Note that a calcining temperature of 1050 • C was needed for the crystal CdSiO 3 powder synthesis through the conventional solidstate reaction method [9][10][11]. In typical solid-state method, the raw materials were CdCO 3 (A.R.…”

“…In this kind of low-dimensional structure, it is very easy to implant other ions into the host lattice and create traps located at suitable depths that can store the excitation energy and emit light at room temperature [8]. Till now, some long-lasting afterglow phosphors based on CdSiO 3 are prepared, e.g., CdSiO 3 : Sm 3+ (Pink) [9], CdSiO 3 : Mn 2+ (orange) [10], CdSiO 3 : Pr 3+ (reddish-orange) [11]. Recently, a self-activated luminescent host lattice, CdSiO 3 , with a violet blue band (self-trapped exciton, STE) emission from 300 nm to 500 nm and a persistent time for several hours has been developed [12].…”

“…: +86 532 66781901; fax: +86 532 66781320. Thus far, all CdSiO 3 phosphors have been prepared at above 1050 • C by conventional solid-state synthesis route [9][10][11]. The solid-state method has some shortcomings, such as energyconsuming, inhomogeneous mixing and product with irregularly shaped and aggregated particles [13].…”

Luminescence properties of BaMg2Si2O7:Eu2+,Mn2+

“…Orange-red persistent luminescence based on the Mn 2+ emission has been observed from MgSiO 3 : Mn 2+ ,Eu 2+ ,Dy 3+ (λ em = 660 nm) [4], MgGeO 2.88 F 0.24 :Mn 2+ , Yb 2+ (670 nm) [5], ␤-Zn 3 (PO 4 ) 2 :Mn 2+ ,M 3+ (M = Al, Ga) (616 nm) [6], and CdSiO 3 :Mn 2+ (575 nm) [7]. Other materials with red persistent luminescence include CaTiO 3 :Pr 3+ [8], Y 2 O 3 :Eu 3+ ,Ti 4+ ,Mg 2+ [9], and Y 2 O 2 S:Sm 2+ [10].…”

Preparation and properties of CdSiO3:Mn2+, Dy3+ phosphor

“…Beside the rare-earth ions-doped phosphors, the manganese ions-doped materials are good candidates for photonic sources. Many researchers have studied the luminescence behaviors of the Mn 2+ activator [15][16][17][18][19].…”