Investigation of luminescence properties of Dy3+ doped YAlO3 phosphors synthesized through solid state method

Baig, Huma Nazli; Saluja, Jagjeet Kaur; Haranath, D.

doi:10.1016/j.ijleo.2015.12.159

Cited by 8 publications

(3 citation statements)

References 27 publications

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“…The peaks present at 443 and 514 cm −1 were allocated to the stretching vibrations of the La–O bond and those at 665 and 1487 cm −1 stand for the Al–O stretching and Al–O–Al bending frequencies, respectively. [ 35 ] The very weak band at 1384 cm −1 was attributed to the stretching vibration in nitrate group of the precursors. The complete removal of carbon dioxide from the synthesized sample during the combustion method was confirmed by the nonappearance of peaks of O=C=O bonding at 1635 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

Luminous LaAlO₃:Dy³⁺ perovskite nanomaterials: Synthesis, structural, and luminescence characteristics for white light‐emitting diodes

et al. 2022

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A single‐phase perovskite LaAlO3:Dy3+ phosphor was synthesized using a gel‐combustion method at 600°C utilization with hexamethylenetetramine as a fuel. Further calcination of the samples was carried out (800 and 1000°C) to investigate the resultant effect on the crystalline and luminescence behaviour. The crystal structure had a cubic unit cell (space group Pm3̅m) and was examined using the Rietveld refinement and X‐ray diffraction data. Additionally, Debye–Scherrer and Williamson–Hall equations were applied to determine other structural features. The particle size and morphology of phosphors were evaluated using transmission electron microscopy. Diffraction measurements were supported by the various metal–oxygen vibration modes studied with the help of Fourier transform infrared spectroscopy. Energy‐dispersive X‐ray analysis verified the chemical composition of synthesized sample. Luminescence spectra of the LaAlO3:Dy3+ phosphors exhibited intense bands for 4F9/2→6H15/2 (482 nm, bluish region) and 4F9/2→6H13/2 (574 nm, yellowish region) transitions. Commission Internationale de L'Eclairage and correlated colour temperature data confirmed the cool‐white emission of the samples under ultraviolet light excitation. The interesting and advantageous luminescence characteristics of LaAlO3:Dy3+ phosphors make them potential materials for white light‐emitting diodes.

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Section: Resultsmentioning

confidence: 99%

Luminous LaAlO₃:Dy³⁺ perovskite nanomaterials: Synthesis, structural, and luminescence characteristics for white light‐emitting diodes

et al. 2022

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“…As of 2012, perovskites have been identified as possible inexpensive base materials for highefficiency commercial photovoltaics, and perovskites also have optoelectronic properties such as strong light absorption and facilitated charge transport [3]. Some of perovskites' typical properties are ferromagnetism [4], piezoelectricity [5,6], electrical conductivity [7,8], superconductivity [9,10], ion conductivity [11,12], magnetism [13,14], catalytic properties [15,16], electrode materials [17,18], and optical [19,20].…”

Section: Introductionmentioning

confidence: 99%

Perovskite-Based Materials for Energy Applications

Dragan¹,

Enache²,

Varlam³

et al. 2020

Perovskite Materials, Devices and Integration

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The role of energy in modern society is fundamental. Constraints due to the emissions of air pollutants from the excessive use of fossil fuels have increased dramatically in the last years. Over the years various devices and systems have been developed to transform energy from forms supplied by nature to forms that can be used by people. Another issue is to absorb energy generated at one time and to discharge it to supply power at a later time, what is called energy storage. This is also a matter to focus when it comes to searching for solutions of energy problems. Perovskites are promising key materials for energy applications, and in this chapter is a literature review summarizing the reported progress in energy applications of perovskite-type ceramic materials. To understand the fundamental nature of structure-property relationships, defect chemistry plays an important role. This paper, a mini-review, briefly describes from available literature and summarizes accordingly. It is focused on perovskite crystal structures, perovskite materials for solid oxide fuel cells, perovskite electrocatalyst and photocatalysts, and perovskite transport features.

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“…12,13 In addition, the thermoluminescence (TL) of Dy 3+ doped phosphors also has been widely investigated. [14][15][16][17] TL is a type of emission that emits by heating the phosphor after absorbing energy from ionizing radiation. 14 The released energy, in the form of luminescence, and sensitivity of photon detection make the TL phenomenon an attractive method to measure small quantities of stored energy.…”

mentioning

confidence: 99%

Investigation of Luminescence Characteristics of SrLaGa₃O₇:Dy³⁺ Phosphors

Yang

Zuo

et al. 2020

ECS J. Solid State Sci. Technol.

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We synthesized Dy3+ doped SrLaGa3O7 phosphors via a sintering process at 1350 °C under atmosphere. The X-ray diffraction data demonstrate that they have the pure tetragonal phase, meaning the successful substitution of Dy3+ in SrLaGa3O7 host. Monitoring at 572 nm, Dy3+ doped SrLaGa3O7 phosphors show a series of excitation bands within 275–475 nm. Exciting at 342 nm, Dy3+ doped SrLaGa3O7 phosphors show emission bands in the range of 450–700 nm. The emission bands respectively locate in blue, yellow and right light regions, which respectively correspond to 4F9/2 → 6H15/2, 4F9/2 → 6H13/2 and 4F9/2 → 6H11/2 transitions of Dy3+. The concentration quenching is induced by dipole-dipole interactions among neighboring Dy3+ ions. There is only one peak in the thermoluminescence glow curves of Dy3+ doped SrLaGa3O7 phosphors, indicating that there is only one type of trap center in these phosphors. The trap depth is calculated to be 0.754 eV.

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Investigation of luminescence properties of Dy3+ doped YAlO3 phosphors synthesized through solid state method

Cited by 8 publications

References 27 publications

Luminous LaAlO₃:Dy³⁺ perovskite nanomaterials: Synthesis, structural, and luminescence characteristics for white light‐emitting diodes

Luminous LaAlO₃:Dy³⁺ perovskite nanomaterials: Synthesis, structural, and luminescence characteristics for white light‐emitting diodes

Perovskite-Based Materials for Energy Applications

Investigation of Luminescence Characteristics of SrLaGa₃O₇:Dy³⁺ Phosphors

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Investigation of luminescence properties of Dy3+ doped YAlO3 phosphors synthesized through solid state method

Cited by 8 publications

References 27 publications

Luminous LaAlO3:Dy3+ perovskite nanomaterials: Synthesis, structural, and luminescence characteristics for white light‐emitting diodes

Luminous LaAlO3:Dy3+ perovskite nanomaterials: Synthesis, structural, and luminescence characteristics for white light‐emitting diodes

Perovskite-Based Materials for Energy Applications

Investigation of Luminescence Characteristics of SrLaGa3O7:Dy3+ Phosphors

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Luminous LaAlO₃:Dy³⁺ perovskite nanomaterials: Synthesis, structural, and luminescence characteristics for white light‐emitting diodes

Luminous LaAlO₃:Dy³⁺ perovskite nanomaterials: Synthesis, structural, and luminescence characteristics for white light‐emitting diodes

Investigation of Luminescence Characteristics of SrLaGa₃O₇:Dy³⁺ Phosphors