Luminescence of Ce 3+ in some compounds in the system CaO-SiO 2 -CaCl 2

Sharma, Kapil; Talwar, Gurjeet; Moharil, S. V.; Ghormare, K. B.

doi:10.1016/j.jlumin.2017.04.027

Cited by 2 publications

(8 citation statements)

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“…Luminescence of Ce 3+ in this host was also reported by Sharma et al. [ 38 ] Ce 3+ emission (Figure 3, curve e) and excitation spectra (Figure 3, curve f), again are relatively simple and resemble the curves for Ca 3 SiO 4 Cl 2 :Ce 3+ . Emission is made up of two bands of equal intensities around 381 and 397 nm.…”

Section: Alkaline Earth Chlorosilicatessupporting

confidence: 84%

“…[ 33 ] Luminescence of Ce 3+ in this host was also reported by Sharma et al. [ 38 ] Figure 3 includes PL spectra for Ca 10 (Si 2 O 7 ) 3 Cl 2 :Ce 3+ . Emission is in form of a broad band around 377 nm (curve g).…”

Section: Alkaline Earth Chlorosilicatessupporting

confidence: 71%

“…Apart from Eu 2+ , PL of Eu 3+ , [ 36 ] Tb 3+ , [ 37 ] Ce 3+ , [ 38 ] Mn 2+ , [ 39 ] has also been studied in this host.…”

Section: Alkaline Earth Chlorosilicatesmentioning

confidence: 99%

“…Ca2 is coordinated with 4 oxygen and 3 Cl ions, and Ca3 is coordinated with 6 oxygens and 1 Cl ions. [ 38 ]…”

Section: Alkaline Earth Chlorosilicatesmentioning

confidence: 99%

“…Ca2 is coordinated with 4 oxygen and 3 Cl ions, and Ca3 is coordinated with 6 oxygens and 1 Cl ions. [38] Eu 2+ can substitute Ca 2+ in all these positions, resulting in several emission bands. The blue emission band in Ca 3 SiO 4 Cl 2 :Eu 2+ at around 427 nm was attributed to Eu 2+ substituted at Ca 2+ sites in the CaCl 2 layers.…”

Section: Ca 3 Sio 4 CLmentioning

confidence: 99%

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Review of Cholorosilicates as Phosphor Hosts

Sharma

Moharil

2023

Cryst. Res. Technol.

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Silicates and halides have been known to be good luminescent materials for long. These two types of hosts have some positive aspects and certain drawbacks, for example, though silicates are stable, they require relatively higher synthesis temperatures. Halide lattices are better suited for several applications like optically stimulated luminescence, thermoluminescence, scintillation, etc. and defects/color center/exciton formation is important. Halides have lower melting points as well. On the other hand, except for fluorides, other halides are quite hygroscopic. Stability in the ambient can pose some problems in applications and some measures for protection have to be taken. To enjoy the benefits of both silicates and halides, chlorosilicate lattices can be suitable. Chlorosilicates can be synthesized at significantly lower temperatures as compared to silicates. They are also less hygroscopic than the constituent chlorides. Research work on chlorosilicates is not as extensive as that on silicates and halides. These are promising luminescent materials whose potential remains still unexploited. A review of various chlorosilicate phases, i.e., of the studies on synthesis, crystal structures, luminescence etc. already carried out, is presented here with the objective of providing impetus to research work on chlorosilicates.

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Section: Alkaline Earth Chlorosilicatessupporting

confidence: 84%

Section: Alkaline Earth Chlorosilicatessupporting

confidence: 71%

“…Apart from Eu 2+ , PL of Eu 3+ , [ 36 ] Tb 3+ , [ 37 ] Ce 3+ , [ 38 ] Mn 2+ , [ 39 ] has also been studied in this host.…”

Section: Alkaline Earth Chlorosilicatesmentioning

confidence: 99%

“…Ca2 is coordinated with 4 oxygen and 3 Cl ions, and Ca3 is coordinated with 6 oxygens and 1 Cl ions. [ 38 ]…”

Section: Alkaline Earth Chlorosilicatesmentioning

confidence: 99%

Section: Ca 3 Sio 4 CLmentioning