| Title |
Effect of partial substitution of Ca for Sr on crystal structure and luminescence of Ce-doped Sr4Al14O25 / |
| Authors |
Misevičius, Martynas ; Jonikavičius, Kastytis ; Jørgensen, Jens-Erik ; Balevičius, Vytautas |
| DOI |
10.1016/j.jssc.2019.03.026 |
| Full Text |
|
| Is Part of |
Journal of solid state chemistry.. San Diego : Academic Press Inc. Elsevier Science. 2019, vol. 274, p. 116-123.. ISSN 0022-4596. eISSN 1095-726X |
| Keywords [eng] |
Oxides ; Crystal structure ; Optical properties ; X-ray diffraction ; Luminescence |
| Abstract [eng] |
Monophasic undoped and cerium-doped Sr4Al14O25 samples with partial substitution of calcium for strontium were prepared using conventional solid-state synthesis. Structural studies revealed that substitution of strontium by calcium in Sr4-xCaxAl14O25 up to x = 1.4 is possible without formation of additional phases and that the Sr2 site (of two possible) is more likely to be substituted by the smaller Ca ions. Photoluminescence measurements of Sr4Al14O25:Ce showed emission with double peak (360 and 380 nm) under 330 nm excitation wavelength. The effect of partial substitution of strontium by calcium on the luminescence of Sr4-xCaxAl14O25:Ce (emission, quantum yield, decay) were studied as well. |
| Published |
San Diego : Academic Press Inc. Elsevier Science |
| Type |
Journal article |
| Language |
English |
| Publication date |
2019 |
