Studies on Y 2 SiO 5 :Ce phosphors prepared by gel combustion using new fuels

Luminescent spectroscopy and structural properties of Ce3+-doped low-temperature X1–Y2SiO5 material prepared by polymer-assisted sol–gel method

“…Indeed, four well-differentiated absorption peaks assigned to stretching bands of SiO 4 at 1020, 953, 883 and 858 cm -1 , suggesting that the formation of well-crystallized silicate is observed. Furthermore, the bending bands of SiO 4 at 562 and 435 cm -1 are observed [9]. The absorption peak at 490 cm -1 is due to bonding vibrations of Y-O bonds.…”

“…)-doped rare-earth (R) oxyorthosilicates (R 2 SiO 5 ) host materials have been the subject of intensive studies for several applications such as cathode luminescence and storage phosphors as well as scintillators [8,9]. Furthermore, Y 2 SiO 5 (yttrium silicate) material presents high visible-light transparency, excellent luminescence efficiency and chemical stability [10].…”

“…Many methods have been successfully used to synthesize oxyorthosilicates nanopowders, ranging from solid-state reaction to the soft chemical methods. Indeed, to develop and prepare silicatebased nanophosphors precipitation, sol-gel, hydrothermal and solution combustion techniques have been used [9]. Among oxyorthosilicates (R 2 SiO 5 ), Y 2 SiO 5 -doped Ce 3?…”

Influence of vinyltriethoxysilane concentration on structural and luminescent characteristics of cerium doped yttrium based silicate phosphors

“…In this paper we used vinyltriethoxysilane (VTEOS) as a new silicon source in various amounts to emphasize its effect on the structural changes and the implications on luminescent characteristics of silicate phosphors. We found that the use of VTEOS as silicon source compared with TEOS [27] led to samples with 25% higher luminescence.…”

“…In this direction, the search of new silicon sources becomes an issue of great importance. Our previous work showed that combustion of TEOS in association with aspartic acid led to the synthesis of single phase silicate phosphors with intensive luminescence [27]. In this paper we used vinyltriethoxysilane (VTEOS) as a new silicon source in various amounts to emphasize its effect on the structural changes and the implications on luminescent characteristics of silicate phosphors.…”