Synthesis, photoluminescence and thermostimulated-luminescence properties of novel red long-lasting phosphorescent materials β-Zn₃(PO₄)₂:Mn²⁺,M³⁺(M = Al and Ga)

Structure, composition, morphology, photoluminescence and cathodoluminescence properties of ZnGeN2 and ZnGeN2:Mn2+ for field emission displays

“…In compounds LaMgB 5 O 10 and Zn 3 (PO 4 ) 2 , Mn 2+ ion substitutes the cations Mg 2+ and Zn 2+ on a distorted octahedral site. The emission spectrum of Mn 2+ in these two matrixes consists of a band with half width $70 nm and 60 nm, predominant at 620 nm and 616 nm, respectively [29,30]. In the present case, only the tetrahedral Zn 2+ sites are available for Mn 2+ ions.…”

Luminescence and energy transfer of Mn2+ and Tb3+ in Y3Al5O12 phosphors

“…This might be related with the absorption of air to UV in this wave band. According to literatures [21][22][23], this broad band can be attributed to Mn 2+ -O 2− charge transfer (CT) transition. The emission spectra excited with 221 and 409 nm (the strongest excitation peak in violet-blue region) are shown in the right of Fig.…”

Phosphorescence behavior and photoluminescence mechanism of Dy 3+ sensitized β-Zn 3 (PO 4 ) 2 : Mn 2+ phosphor

“…The red LPP of b-Zn 3 (PO 4 ) 2 : Mn 2+ was first reported by Su's group [16]. Sm 3+ , Zr 4+ , Ga 3+ or Al 3+ co-doped Zn 3 (PO 4 ) 2 : Mn 2+ have been investigated thoroughly [16,[24][25][26][27]. Owing to the forbidden transition ( 4 T 1 -6 A 1 ) required by the selection rule, Mn 2+ singly doped b-Zn 3 (PO 4 ) 2 phosphor cannot show considerable emission performance.…”

“…Owing to the forbidden transition ( 4 T 1 -6 A 1 ) required by the selection rule, Mn 2+ singly doped b-Zn 3 (PO 4 ) 2 phosphor cannot show considerable emission performance. However, co-doping Sm 3+ , Zr 4+ , Al 3+ , Ga 3+ or Zn 2+ ions can largely enhance the luminescent properties of b-Zn 3 (PO 4 ) 2 : Mn 2+ [16,24,25,27]. It has been reported that Dy 3+ as a promising sensitizer can enhance the luminescence intensity of Mn 2+ in many hosts, such as Mg 2 SiO 4 : Mn 2+ , Dy 3+ [20].…”