Luminescence in LaBaB9O16 prepared by combustion synthesis

Sonekar, R. P.; Omanwar, S. K.; Moharil, S. V.; Muthal, P. L.; Dhopte, S.M.; Kondawar, V. K.

doi:10.1016/j.jlumin.2009.01.006

Cited by 35 publications

(24 citation statements)

References 18 publications

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“…Ce 3+ ions exhibit broad absorption bands in the UV, so that they can be easily excited by AlGaN/GaN-based LEDs [4]. The intense broad absorption band of Ce 3+ ions is a consequence of their 4f → 5d parity allowed electric dipole transitions, so that in co-doped materials such ions act as good sensitizers, transferring a part of their excitation energy to activator ions such as Tb 3+ [4,[9][10][11], Mn 2+ [10][11][12][13][14][15] and Dy 3+ [5][6][7][8]11].…”

Section: Introductionmentioning

confidence: 99%

Blue-yellow photoluminescence from Ce3+→Dy3+ energy transfer in HfO2:Ce3+:Dy3+ films deposited by ultrasonic spray pyrolysis

Martínez-Martínez

Lira

Speghini

et al. 2011

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Blue-yellow photoluminescence from Ce3+→Dy3+ energy transfer in HfO2:Ce3+:Dy3+ films deposited by ultrasonic spray pyrolysis

Martínez-Martínez

Lira

Speghini

et al. 2011

Journal of Alloys and Compounds

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“…The NaMgBO 3 :Dy 3+ and NaMgBO 3 :Sm 3+ phosphors are prepared by well-established solution combustion synthesis method (Bhatkar et al 2002;Thakare et al 2007;Bhatkar et al 2007;Sonekar et al 2007;Sonekar et al 2009;Bajaj and Omanwar 2014;Wu et al 2005). During the reaction, the stoichiometric amounts of high purity starting components, NaNO 3 (G.R.…”

Section: Methodsmentioning

confidence: 99%

“…The main reason of emphasizing on borate is their variety of structure types, transparency to a wide range of wavelengths, high laser damage tolerance, and high optical quality (Bajaj and Omanwar 2013). Combustion synthesis is a good low-cost, one-step, and lowtemperature method for the synthesis of borates, phosphates, and silicates (Khan et al 2015;Bhatkar et al 2002;Thakare et al 2007;Bhatkar et al 2007;Sonekar et al 2007;Sonekar et al 2009). Some orthoborates, LiMgBO 3 :Dy 3+ (Bajaj and Omanwar 2014), NaCaBO3 (Wu et al 2005) (Kumar et al 2013), NaCaBO 3 : Ce 3+ , Mn 2+ (Sun et al 2013), NaCaBO 3 :Ce 3+ , Tb 3+ , Mn 2+ (Zhang and Gong 2014), NaCaBO 3 :Sm 3+ (Bedyal et al 2014), etc., have been synthesized with different methods to explore their crystal structure and luminescent properties for probable applications in medical as well as industrial fields.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and thermoluminescence properties of rare earth-doped NaMgBO3 phosphor

Khan

Ingale

Omanwar

2015

Environ Sci Pollut Res

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Rare earth (Dy(3+) and Sm(3+))-doped sodium magnesium borate (NaMgBO3) is synthesized by solution combustion synthesis method keeping their thermoluminescence properties in mind. The reaction produced very stable crystalline NaMgBO3:RE (RE = Dy(3+), Sm(3+)) phosphors. The phosphors are exposed to (60)Co gamma-ray radiations dose of varying rate from 5 to 25 Gy, and their TL characteristics with kinetic parameters are studied. NaMgBO3:Dy(3+) phosphor shows two peaks for lower doping concentration of Dy(3+) while it reduced to single peak for the higher concentrations of activator Dy(3+). NaMgBO3:Dy(3+) shows the major glow peak around 200 °C while NaMgBO3:Sm(3+) phosphors show two well-separated glow peaks at 200 and 332 °C respectively. The thermoluminescence intensity of these phosphors was compare with the commercially available TLD-100 (Harshaw) phosphor. The TL responses for gamma-ray radiations dose were found to be linear from 5 to 25 Gy for both phosphors while the fading in each case is calculated for the tenure of 45 days.

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“…Inorganic borate phosphors were prepared by a novel method described earlier, which is a variation of the combustion synthesis (Gawande et al, 2014a;Sonekar et al, 2006). In our previous work, we have reported some Pb 2+ doped inorganic borate host phosphor materials (Gawande et al, 2013(Gawande et al, , 2014b(Gawande et al, , 2014c.…”

Section: Methodsmentioning

confidence: 99%

Photoluminescence Properties of Combustion Synthesized BaB₂O₄:Pb²⁺Phosphor

Gawande

Sonekar²,

Omanwar

2014

Combustion Science and Technology

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Inorganic borate host phosphor BaB 2 O 4 doped with varying concentrations of Pb 2+ has been prepared by a solution combustion synthesis technique. The synthesis is based on the exothermic reaction between the fuel (urea) and oxidizer (ammonium nitrate). The photoluminescence properties of prepared materials were studied at room temperature. Under the excitation of 240 nm, the phosphor BaB 2 O 4 :Pb 2+ shows broad emission at 370 nm (corresponds to 3 P 1 to 1 S 0 transition). The optimum concentration of Pb 2+ in BaB 2 O 4 :Pb 2+ was found to be 0.02 mol (relative to Ba). The critical transfer distances, R 0 were calculated. Stokes shifts were calculated (using corresponding excitation and emission band peaks) to be 14,640 cm −1 . The emission bands of synthesized phosphors are in the ultraviolet (UV) region and could be potential candidates for application in UV lamps.

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Luminescence in LaBaB9O16 prepared by combustion synthesis

Cited by 35 publications

References 18 publications

Blue-yellow photoluminescence from Ce3+→Dy3+ energy transfer in HfO2:Ce3+:Dy3+ films deposited by ultrasonic spray pyrolysis

Blue-yellow photoluminescence from Ce3+→Dy3+ energy transfer in HfO2:Ce3+:Dy3+ films deposited by ultrasonic spray pyrolysis

Synthesis and thermoluminescence properties of rare earth-doped NaMgBO3 phosphor

Photoluminescence Properties of Combustion Synthesized BaB₂O₄:Pb²⁺Phosphor

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Luminescence in LaBaB9O16 prepared by combustion synthesis

Cited by 35 publications

References 18 publications

Blue-yellow photoluminescence from Ce3+→Dy3+ energy transfer in HfO2:Ce3+:Dy3+ films deposited by ultrasonic spray pyrolysis

Blue-yellow photoluminescence from Ce3+→Dy3+ energy transfer in HfO2:Ce3+:Dy3+ films deposited by ultrasonic spray pyrolysis

Synthesis and thermoluminescence properties of rare earth-doped NaMgBO3 phosphor

Photoluminescence Properties of Combustion Synthesized BaB2O4:Pb2+Phosphor

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Photoluminescence Properties of Combustion Synthesized BaB₂O₄:Pb²⁺Phosphor