Luminescent properties of Ca0.97Al2O4:Eu0.012+,Dy0.023+ phosphors prepared by combustion method at different initiating temperatures

Mothudi, B.M.; Ntwaeaborwa, O.M.; Pitale, Shreyas S.; Swart, H.C.

doi:10.1016/j.jallcom.2010.08.113

Cited by 28 publications

(8 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8. After irradiation with the ultraviolet light (process numbered [1]), most of the excitation energy associated with the excited carriers (electrons or holes) will be transferred via the host directly to the luminescence centres, Dy 3+ , followed by the Dy 3+ 4f emissions as the immediate luminescence (process [2]). However, part of the excitation energy will be stored when some of the excited carriers drop into the traps (process [3]), instead of returning to the ground states.…”

Section: Fig 7 (B) Emission Spectra Of Srcamgsi 2 O 7 :Dy 3+ Phosphormentioning

confidence: 99%

“…Current research topics on phosphors are focused on the generation of white light that can be used in light emitting diodes (LEDs). [1] White LEDs have several advantages over conventional fluorescent lamps such as reduced power consumption, compactness, efficient light output, and longer lifetimes. The strategies used to produce white light in LEDs include combining blue LED with a yellow phosphor or UV-LED with blue, green and red phosphors or blue, green and red LEDs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structural characterization and optical properties of dysprosium doped strontium calcium magnesium di-silicate phosphor by solid state reaction method

2015

View full text Add to dashboard Cite

Section: Fig 7 (B) Emission Spectra Of Srcamgsi 2 O 7 :Dy 3+ Phosphormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Structural characterization and optical properties of dysprosium doped strontium calcium magnesium di-silicate phosphor by solid state reaction method

2015

View full text Add to dashboard Cite

“…The results indicated that the prepared CaMgSi 2 O 6 :Dy 3+ phosphor shows a rapid decay and the long lasting phosphorescence. [38]. Table 3 Fitting results of the decay curves…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

Luminescence properties of dysprosium doped calcium magnesium silicate phosphor by solid state reaction method

Sahu

Chandrakar

Baghel

et al. 2015

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…6. Since there are three Ce 3+ luminescent centers in the SYSO host, the decay curves are successfully tted using the following three exponential equation: 44,45…”

Section: Luminescence Properties and Energy Transfer In Syso:ce 3+ Tb 3+mentioning

confidence: 99%

Highly efficient Sr₃Y₂(Si₃O₉)₂:Ce³⁺,Tb³⁺/Mn²⁺/Eu²⁺phosphors for white LEDs: structure refinement, color tuning and energy transfer

et al. 2014

View full text Add to dashboard Cite

A series of highly efficient and emission-tunable Sr 3 Y 2 (Si 3 O 9 ) 2 (SYSO):Ce 3+ ,Tb 3+ /Mn 2+ /Eu 2+ phosphors have been prepared via a solid-state reaction. The structure refinement indicates that the as-prepared phosphors crystallized in a monoclinic phase with a space group of C2/c (no. 15), and there are three kinds of cation sites in the host lattice for the doped ions to occupy. The Ce 3+ emission at different lattice sites in the SYSO host has been firstly identified and discussed. When introducing other doping ions into these cation sites, there exist efficient energy transfers from Ce 3+ ions to these doping ions (Tb 3+ , Mn 2+ , and Eu 2+ ) under UV excitation. The corresponding energy transfer mechanisms from Ce 3+ to Tb 3+ /Mn 2+ /Eu 2+ in SYSO:Ce 3+ ,Tb 3+ /Mn 2+ /Eu 2+ systems have been studied systematically. These energy transfers not only can enhance the luminescent efficiencies and broaden the width of emission spectra of SYSO:Ce 3+ ,Tb 3+ /Mn 2+ /Eu 2+ phosphors but also can modulate their emission colors from blue to green, orange or cyan, respectively. For example, the maximum quantum yields (QYs) of as-prepared SYSO:0.15Ce 3+ ,xTb 3+ /yMn 2+ phosphors can reach 90.4% and 74% at x ¼ 0.70, y ¼ 0.01, respectively.Based on these experiment results, the as-prepared SYSO:Ce 3+ ,Tb 3+ /Mn 2+ /Eu 2+ phosphors can act as potential color-tunable and emission band-widened phosphors for possible applications in ultraviolet light based white LEDs.

show abstract

Luminescent properties of Ca0.97Al2O4:Eu0.012+,Dy0.023+ phosphors prepared by combustion method at different initiating temperatures

Cited by 28 publications

References 16 publications

Structural characterization and optical properties of dysprosium doped strontium calcium magnesium di-silicate phosphor by solid state reaction method

Structural characterization and optical properties of dysprosium doped strontium calcium magnesium di-silicate phosphor by solid state reaction method

Luminescence properties of dysprosium doped calcium magnesium silicate phosphor by solid state reaction method

Highly efficient Sr₃Y₂(Si₃O₉)₂:Ce³⁺,Tb³⁺/Mn²⁺/Eu²⁺phosphors for white LEDs: structure refinement, color tuning and energy transfer

Contact Info

Product

Resources

About

Luminescent properties of Ca0.97Al2O4:Eu0.012+,Dy0.023+ phosphors prepared by combustion method at different initiating temperatures

Cited by 28 publications

References 16 publications

Structural characterization and optical properties of dysprosium doped strontium calcium magnesium di-silicate phosphor by solid state reaction method

Structural characterization and optical properties of dysprosium doped strontium calcium magnesium di-silicate phosphor by solid state reaction method

Luminescence properties of dysprosium doped calcium magnesium silicate phosphor by solid state reaction method

Highly efficient Sr3Y2(Si3O9)2:Ce3+,Tb3+/Mn2+/Eu2+phosphors for white LEDs: structure refinement, color tuning and energy transfer

Contact Info

Product

Resources

About

Highly efficient Sr₃Y₂(Si₃O₉)₂:Ce³⁺,Tb³⁺/Mn²⁺/Eu²⁺phosphors for white LEDs: structure refinement, color tuning and energy transfer