Characterization of SrAl2O4:Eu2+, Dy3+ phosphor nano-powders produced by microwave synthesis route

Elsagh, Mahdiyeh; Rajabi, Masoud; Amini, Elham

doi:10.1007/s10854-014-1773-x

Cited by 22 publications

(38 citation statements)

References 26 publications

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“…As reported by many research groups [1,2,8,10,11], concentration quenching occurs when activator concentration exceeds a proper amount (usually about a few weight percent). Figure 7 shows variation of peak emission intensity with Eu 2?…”

Section: Spectroscopymentioning

confidence: 90%

“…where d is crystallite size (Å ), k is X-ray wavelength (1.54056 Å ), b is full width at half maximum (FWHM) and h is the angle [1].…”

Section: Methodsmentioning

confidence: 99%

“…Recently, white light emitting diodes (WLEDs) have attracted much attention, since they have less negative effect on environment and are more cost effective [1,2]. Compared to conventional lighting devices, these diodes have some advantages, including low applied voltage, high power efficiency and brightness and longer life [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…In SrO-Al 2 O 3 system, there are six known phosphor hosts, namely Sr 4 Al 14 O 25 [1], SrAl 2 O 4 [2], Sr 2 Al 6 O 11 [4,7,8], SrAl 12 O 19 [1,4,7,8], Sr 3 Al 2 O 6 [4,8], and SrAl 4 O 7 [8].…”

Section: Introductionmentioning

confidence: 99%

“…Different processes such as solid state reaction [1-3, 5, 7], sol-gel [1], co-precipitation [10], microwave synthesis [1] and solution combustion [9] are among the methods used for synthesis of these phosphors. Compared to the samples obtained by conventional solid state reaction method, the phosphor materials synthesized by wet chemical method have some advantages such as low calcinations temperature and very fine particle size.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Sr4Al14O25:Eu2+ green emitting luminescent nano-pigment by solution combustion method

Zand

Baghshahi

Rajabi

2014

J Mater Sci: Mater Electron

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Luminescent nano-pigments based on strontium aluminates doped with various amounts of europium rare earth ion (Sr 4 Al 14 O 25 :Eu 2? ) were synthesized by solution combustion method which involves the exothermic reaction of an oxidizer and an organic fuel. It is a suitable method for producing chemically homogenous and pure powders with very fine particle size. Phases studies by X-ray diffractometer indicated formation of pure phase Sr 4 Al 14 O 25 with crystallite sizes about 52.46 nm and peak shift of about 2h = 0.26°due to Eu 2? doping. scanning electron microscope micrographs also revealed that the particles have irregular morphology and wide particle size distribution. The emission spectrum showed main emission peak at about 480 nm. Energy transfer mechanism between the two emission centers and the effect of Eu 2? ion concentration on emission spectrum was studied and it was deduced that the maximum emission intensity occurred at 4 at% of Eu 2? . Absorption spectrum of the samples were lower than 0.5 %, especially in emission region of the doped pigments.

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Section: Spectroscopymentioning

confidence: 90%

“…where d is crystallite size (Å ), k is X-ray wavelength (1.54056 Å ), b is full width at half maximum (FWHM) and h is the angle [1].…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Synthesis of Sr4Al14O25:Eu2+ green emitting luminescent nano-pigment by solution combustion method

Zand

Baghshahi

Rajabi

2014

J Mater Sci: Mater Electron

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Rare Earth Luminescent Nanomaterials and Their Applications

Zhuang

Zhang

2022

Functional Nanomaterials

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Recent Advances in Mechanoluminescence of Doped Zinc Sulfides

Qasem

Xiong

et al. 2021

Laser & Photonics Reviews

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Mechanoluminescence (ML) is the light generation of a material under mechanical stimuli. For more than 400 years, many compounds including inorganic and organic materials present this phenomenon. The general mechanism for the ML emission is the stress‐induced electrification effect combined with the piezoelectric field that lead to trapping and detrapping of the charge carriers. However, an in‐depth investigation and research are required to understand and hypothesize the ML mechanisms and optimum design and synthesis methods for better ML properties. Among the most common materials possessing this phenomenon is the zinc sulfide (ZnS) compounds that show high luminescence intensity and reproducibility. Such properties make them best candidates to be used in potential applications such as light and display devices, stress sensors, and human health monitoring devices. Therefore, this minireview focuses on the recent development and progress in doped ZnS ML compounds, including mechanism, design and synthesis, and the practical applications of such materials.

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Characterization of SrAl2O4:Eu2+, Dy3+ phosphor nano-powders produced by microwave synthesis route

Cited by 22 publications

References 26 publications

Synthesis of Sr4Al14O25:Eu2+ green emitting luminescent nano-pigment by solution combustion method

Synthesis of Sr4Al14O25:Eu2+ green emitting luminescent nano-pigment by solution combustion method

Rare Earth Luminescent Nanomaterials and Their Applications

Recent Advances in Mechanoluminescence of Doped Zinc Sulfides

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