Photoluminescence characteristics of Sm3+ and Eu3+ doped yttrium oxide phosphors

Verma, Tarkeshwari; Agrawal, Sadhana

doi:10.1007/s10854-018-9465-6

Cited by 13 publications

(2 citation statements)

References 43 publications

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“…These light-emissive materials consist of a host matrix in combination with a transition metal or rare earth ions as activators, such that the host matrix allows minimizing non-radiative transition processes between the rare earth ions and the matrix itself. There are different phosphor systems to be used in solar cells [7,8], such as fluorides [9], vanadates [10] or yttriates [11]. Among phosphor materials, lanthanum niobate compounds have recently attracted interest due to a combination of dielectric and catalytic properties in combination with high chemical stability for use in energy storage [12].…”

Section: Introductionmentioning

confidence: 99%

Development of Luminescent Nd-Doped LaNbO Compound Thin Film Growth by Magnetron Sputtering for the Improvement of Solar Cells

et al. 2023

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Nd3+-doped LaNbO phosphor thin films were prepared by radio-frequency magnetron sputtering on Si substrates. The effects of a 1% Nd-doping concentration, after annealing at 1200 °C for 12 h, on the light-emitting properties of the sputtered thin films were characterized via several experimental techniques and deeply discussed. Photoluminescence characterization showed strong emission peaks typical of Nd3+ centers at 880 nm and 1060 nm when a 325 nm wavelength laser source was applied. Similar responses were detected in Nd3+-doped La3NbO7 powder samples fabricated by the solid-state reaction method. The coexistence of two phases (LaNbO4 and La3NbO7) in the thin films with higher nominal thickness was clearly identified based on different structural analyses. The promising results open the possibility for developing phosphor substrates as a preliminary step for the improvement of solar cells based on photon recycling mechanisms.

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Section: Introductionmentioning

confidence: 99%

Development of Luminescent Nd-Doped LaNbO Compound Thin Film Growth by Magnetron Sputtering for the Improvement of Solar Cells

et al. 2023

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“…Over a couple of decades luminescent materials have had wide application in various fields. These applications mainly include lighting, [ 1,2 ] emissive display devices, [ 3–5 ] optical communication, [ 6,7 ] lasers, [ 8–10 ] X–ray detector systems [ 11,12 ] and scintillations. [ 13–15 ] Further, recent applications of luminescence have extended to new areas like white‐light emitting devices (LEDs) [ 16–19 ] and solar cells.…”

Section: Introductionmentioning

confidence: 99%

A review: X‐ray excited luminescence of gadolinium based optoelectronic phosphors

Mahakhode¹,

Nande²,

Dhoble

2021

Luminescence

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X‐ray excited fluorescence tomography is an emerging field in the application of bio‐imaging and computer tomography. Some rare‐earth doped inorganic phosphors like gadolinium oxide (Gd2O3), yttrium oxide (Y2O3), zinc tungstate (ZnWO4), cesium fluoride (CsF), barium fluorochloride (BaFCl), lanthanum oxybromide (LaOBr) are shown outstanding applications for X‐ray excited phosphors. Gadolinium (Gd)‐based inorganic phosphors show extraordinary applications in the field of X‐ray chromatography and computer chromatography. In this review article, we discussed the general information about X‐ray excited luminescence (XEL) phosphor. Further, we discussed importance, synthesis, structural and photoluminescence (PL) properties of rare‐earth (Europium (Eu)) doped Gd2O3. To elaborate the scope of the review, we have discussed synthesis, structural and optical properties of lithium (Li) doped Gd2O3:Eu. At the end of the review, synthesis, structural and optical properties of Eu doped lutetium oxide (Lu2O3) have been discussed and the results compared with Eu doped Gd2O3. The comparison provided the understanding of structural and optical peak position of host and the dopant (Eu).

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Structural and photoluminescence investigation of Y₂O₃:Sm³⁺ nano‐powders: Organic agent's effect

Lamiri,

Kahouadji,

Ilham

et al. 2024

Vietnam Journal of Chemistry

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In this article, the authors delve into the synthesis of Y2O3:Sm3+ nanopowders using the sol–gel method, employing organic agents such as ethylene glycol (EG) and polyethylene glycol (PEG). This thorough investigation focuses on the structural, morphological, and photoluminescence characteristics of these nanopowders, with particular consideration for their potential applications in the field of optical devices. X‐ray diffraction patterns indicate that all powders crystallize in pure cubic phases (Ia‐3). Transmission electron microscopy (TEM) analysis reveals the presence of particles with dimensions less than 70 nm. Specifically, morphological and structural data suggest that the crystallite size of nanopowders prepared with PEG exceeds that of nanopowders prepared with EG. In exploring the photoluminescence properties, the emission spectra of the powders, recorded at λem = 600 nm, exhibit two absorption bands attributed to the charge transfer state (CTS) from O2− → Sm3+, with a maximum absorption at 223 nm, and to the intraconfigurational transition 4f5‐4f5 of Sm3+. A red/orange emission, attributed to the 4G5/2 → 6H7/2 transition, predominates under these conditions. A significant improvement in the intensity of photoluminescence is notably observed in samples prepared with organic agents compared to those prepared without agents. Finally, chromatic coordinates underscore the strong potential of Y2O3:Sm3+ nanopowders as promising phosphors for lighting applications.

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Photoluminescence characteristics of Sm3+ and Eu3+ doped yttrium oxide phosphors

Cited by 13 publications

References 43 publications

Development of Luminescent Nd-Doped LaNbO Compound Thin Film Growth by Magnetron Sputtering for the Improvement of Solar Cells

Development of Luminescent Nd-Doped LaNbO Compound Thin Film Growth by Magnetron Sputtering for the Improvement of Solar Cells

A review: X‐ray excited luminescence of gadolinium based optoelectronic phosphors

Structural and photoluminescence investigation of Y₂O₃:Sm³⁺ nano‐powders: Organic agent's effect

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Photoluminescence characteristics of Sm3+ and Eu3+ doped yttrium oxide phosphors

Cited by 13 publications

References 43 publications

Development of Luminescent Nd-Doped LaNbO Compound Thin Film Growth by Magnetron Sputtering for the Improvement of Solar Cells

Development of Luminescent Nd-Doped LaNbO Compound Thin Film Growth by Magnetron Sputtering for the Improvement of Solar Cells

A review: X‐ray excited luminescence of gadolinium based optoelectronic phosphors

Structural and photoluminescence investigation of Y2O3:Sm3+ nano‐powders: Organic agent's effect

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Structural and photoluminescence investigation of Y₂O₃:Sm³⁺ nano‐powders: Organic agent's effect