Optical behaviour of samarium doped potassium yttrium double phosphates

Sobczyk, Marcin; Szymański, Damian; Guzik, M.; Legendziewicz, J.

doi:10.1016/j.jlumin.2014.12.041

Cited by 18 publications

(5 citation statements)

References 27 publications

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“…In current glass systems, J-O parameter values presented in Table 7, Table 8 and follow the tendency as Ω4> Ω 6> Ω2. The same trend observed in other glass systems [38][39][40][41]. According Jorgensen and Reisfeld [42], the Ωλ extra affected the crystal-field asymmetry and the changes in the energy distinction relating to 4fN and 4fN-15d configuration.…”

Section: Resultssupporting

confidence: 75%

Spectroscopic properties of lithium borate glass containing Sm3+ and Nd3+ ions

Kashif¹,

Ratep²,

Ahmed³

2020

IJAAS

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Lithium borate glass samples mixed with a different concentration of Sm3+ and Nd3+ ions organized by quenching technique. Structural, vibration groups and spectral properties of glass samples investigated using X-ray diffraction, FTIR, UV/Vis/NIR and photoluminescence spectroscopy. The X-ray confirmed the lithium borate glass samples containing Sm3+ and Nd3+ ions in the amorphous state. Luminescence spectra of glass samples excited at 400 nm recorded, here three luminescence bands observed in Visible region, which due to spectra materials (Sm3+, Nd3+). These indicate that these glass samples responsible orange emission and used in the improvement of materials for LED, and optical devices. The functional vibration groups of the glass matrix studied using FTIR spectroscopy.

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Section: Resultssupporting

confidence: 75%

Spectroscopic properties of lithium borate glass containing Sm3+ and Nd3+ ions

Kashif¹,

Ratep²,

Ahmed³

2020

IJAAS

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“…The quantum efficiency is the ratio of effective and radiative lifetimes that the number of photons created and divided by the number of photons absorbed. Therefore, the quantum efficiency of overall luminescence can be calculated using the following formula [31]:…”

Section: Optical Propertiesmentioning

confidence: 99%

Synthesis and luminescence in sol–gel auto-combustion-synthesized $$\hbox {CaSnO}_{3}{:}\hbox {Eu}^{3+}$$ CaSnO 3 : Eu 3 + phosphor

Tsega

Dejene

2017

Bull Mater Sci

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Undoped and Eu-doped CaSnO 3 nanopowders were prepared by a facile sol-gel auto-combustion method calcined at 800 • C for 1 h. The samples are found to be well-crystallized pure orthorhombic CaSnO 3 structure. Photoluminescence (PL) measurements indicated that the undoped sample exhibits a broad blue emission at about 420-440 nm, which can be recognized from an intrinsic centre or centres in CaSnO 3. Eu-doped CaSnO 3 showed broad blue emission centred about 434 nm, a weak peak at 465 nm and a sharp intense yellow emission line at 592 nm. The emission situated at 592 nm was assigned to the f-f transition of 5 D 0 → 7 F 1 in Eu 3+ ions. The afterglow emission and PL decay results in Eu-doped CaSnO 3 phosphor, which revealed that there are at least two different traps in this phosphor. From the obtained results, Eu 3+-doped CaSnO 3 phosphor could be proposed as a potential white luminescent optical material.

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“…Recently, various type of oxide host materials, such as tungstates, phosphates, molybdates, silicates etc., have been explored for obtaining different kinds of emissions in the visible region [4][5][6][7]. Nowadays, ternary oxides are evolving out as attention grabbing phosphors host matrix material for the doping of rare-earth ions owing to their interesting opto-electronic properties and stable crystal structure.…”

Section: Introductionmentioning

confidence: 99%

Judd-Ofelt and structural analysis of colour tunable BaY 2 ZnO 5 :Eu 3+ nanocrystals for single-phased white LEDs

Dalal

Taxak

Chahar

et al. 2016

Journal of Alloys and Compounds

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Optical behaviour of samarium doped potassium yttrium double phosphates

Cited by 18 publications

References 27 publications

Spectroscopic properties of lithium borate glass containing Sm<sup>3+</sup> and Nd<sup>3+</sup> ions

Spectroscopic properties of lithium borate glass containing Sm<sup>3+</sup> and Nd<sup>3+</sup> ions

Synthesis and luminescence in sol–gel auto-combustion-synthesized $$\hbox {CaSnO}_{3}{:}\hbox {Eu}^{3+}$$ CaSnO 3 : Eu 3 + phosphor

Judd-Ofelt and structural analysis of colour tunable BaY 2 ZnO 5 :Eu 3+ nanocrystals for single-phased white LEDs

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