Luminescence studies of Ba1−xMg2−y(PO4)2:xEu2+, yMn2+ phosphor

A study of the luminescence and energy transfer in Ba1.6Ca0.4P2O7 codoped with Eu2+ and Mn2+

“…As a consequence, the emission intensities of Mn 2+ ‐doped phosphors are generally very weak for direct excitation of Mn 2+ excitation levels. Such a phenomenon has been reported in many Mn 2+ ‐doped host lattices, such as NaSr 4 (BO 3 ) 3 :Mn 2+ 2, BaMg 2 (PO 4 ) 2 :Mn 2+ 26, NaCaPO 4 :Mn 2+ 27, etc., and it is also true for Mn 2+ emission in Ba 1.6 Ca 0.4 P 2 O 7 . However, the phenomena of energy transfer between sensitizer and activator can supply a way of enhancing the emission intensity of Mn 2+ ions 1, 28–33.…”

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

“…The first is the near-UV and blue emission below 480 nm, including several peaks at 385, 419 and 439 nm, ascribed to the 5 D 3 -7 F J (J = 6, 5, 4) transitions. The second is the green and red emission above 480 nm, including several peaks at 492, 544, 593 and 629 nm, corresponding to 5 D 4 -7 F J (J = 6,5,4,3) transitions [17,18,27,28]. (For interpretation of the references to color in this text, the reader is referred to the web version of the article.)…”

“…Currently, Mn 2+ has been widely utilized in sulfides, phosphates, borates, aluminates, silicates [2][3][4][5][6], and so on, as an activator or sensitizer. The luminescence transition of Mn 2+ is parity and spin forbidden.…”

Structural and photoluminescence study of Mn2+‐activated CaYAl3O7 blue phosphors

“…However, for the present work, we preferred the combustion technique because it is low cost, less time consuming and provides a better result in terms of the properties as compared to the sample prepared by solid‐state reaction methods. Among the options available for such a purpose, the combustion method has proved to be better than other methods for preparing aluminate phosphor .…”