A novel temperature sensitive Sm3+ doped niobate orange-red phosphor: The synthesis and characteristic luminescent property investigation

Zhu, Ge; Li, Zhuowei; Zhou, Faguang; Wang, Chuang; Xin, Shuangyu

doi:10.1016/j.jlumin.2017.12.014

Cited by 47 publications

(17 citation statements)

References 30 publications

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“…Also, the ( 4 G 5/2 → 6 H 7/2 ) transition is partially MD as well as partially ED in nature having the highest intensity. [ 27–30 ]…”

Section: Resultsmentioning

confidence: 99%

“…[ 43 ] The results indicate that the prepared phosphor has higher Δ E and better thermal stability in comparison with Ba 3 ZrNb 4 O 15 :Sm 3+ (Δ E = 0.191 eV), Lu 1.93 Ge 2 O 5 :0.06Bi 3+ ,0.01Sm 3+ (Δ E = 0.114 eV), SrBi 2 B 2 O 7 :Sm 3+ (Δ E = 0.15 eV) and Ca 9 La(PO 4 ) 7 :Sm 3+ (Δ E = 0.167 eV). [ 29,44–46 ] Therefore, temperature dependent emission spectra for Ba 2− x NaNb 5 O 15 : x Sm 3+ ( x = 0.10 mol) phosphor indicate that the phosphor exhibits excellent thermal stability.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis and optimization of photoluminescence properties in potential reddish orange emitting niobate phosphor for photonic device applications

et al. 2021

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A series of samarium ions (Sm3+) activated barium sodium niobate (Ba2NaNb5O15) samples have been successfully synthesized via employing a solid‐state reaction technique. Single phase, crystalline tetragonal Ba2NaNb5O15 were formed and the crystallite size of the prepared sample varied with doping of Sm3+ ions. The scanning electron microscopy (SEM) images of Ba2NaNb5O15:Sm3+ illustrate that the particles possess a non‐uniform spherical structure with some agglomeration. The prepared Ba2NaNb5O15:Sm3+ phosphors were efficiently excited with near‐ultraviolet (n‐UV) (406 nm) and emit strong visible emission peaks in the range 550–725 nm. The phenomenon of concentration quenching was detected after x = 0.10 mol of Sm3+ ions concentration for Ba2NaNb5O15, which arises due to non‐radiative energy transfer through dipole–dipole interaction among activator ions. Colour coordinates (0.586, 0.412) for the optimized phosphor lies in the visible reddish orange region. A bi‐exponential decay behaviour was observed for the photoluminescence decay curve of the optimized phosphor sample with an average decay time in milliseconds. The temperature dependent emission intensity confirms that the Ba2−xNaNb5O15:xSm3+ (x = 0.10 mol) phosphor exhibits adequate thermal stability having high value of activation energy (ΔE = 0.201 eV). The comprehensive study and analysis of the as‐prepared samples suggest that the intense reddish orange emitting thermally stable Ba2NaNb5O15:Sm3+ phosphor can act as a potential luminescent material in phosphor coated lighting, solar cells and other photonic devices.

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“…Also, the ( 4 G 5/2 → 6 H 7/2 ) transition is partially MD as well as partially ED in nature having the highest intensity. [ 27–30 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Synthesis and optimization of photoluminescence properties in potential reddish orange emitting niobate phosphor for photonic device applications

et al. 2021

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“…A similar behaviour for Sm 3+ ions has been reported for Sm-doped niobate and vanadate compounds. [16,31] The 402 nm ( 6 H 5/2 ! 6 P 3/2 ) peak was more prominent for the emission properties of Sm 3+ thin films.…”

Section: Luminescence Of Smnbo 4 and Smtao 4 Thin Filmsmentioning

confidence: 99%

“…[14] Sm 3+ ions possess striking absorption in the visible region of UV and can show especially orange-red fluorescence in the visible region. [15,16] Sm 3+ ions radiate orange-red light due to the changes of 4 G 5/2 ! 6 H J/2 (J = 5, 7, and 9).…”

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Luminescence properties of neodymium, samarium, and europium niobate and tantalate thin films

et al. 2022

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Thin films of lanthanide orthoniobate LnNbO4 (LnNO) and orthotantalate LnTaO4 (LnTO), (Ln = Nd, Sm, Eu) were fabricated using the sol–gel method with subsequent spin‐coating on the PbZrO3/Al2O3 substrate and annealing at 1000°C. X‐ray diffraction patterns showed monoclinic M‐LnNbO4 or M´‐LnTaO4, which coexists with the orthorhombic or tetragonal phase. X‐ray photoelectron spectroscopy demonstrated the presence of Nd3+, Sm3+/Sm2+ and Eu3+/Eu2+ ions. The luminescence properties of polymorphic films were investigated. Excitation spectra of PbZrO3 interlayer represented broad bands at 410 and 550 nm that were assigned to charge transfer bands (CTB). In all films, the CTB broad band at ~275 nm related to charge transfer transition of Ln3+→O2− and NbO43− or TaO43− groups. In excitation spectra, 4I9/2→4G5/2 (Nd3+), 6H5/2→6P3/2 (Sm3+) and 7F0→5L6 (Eu3+) transitions (at 585, 402 and 395 nm), respectively were found to be more intense than any other Ln3+ transition. The emission spectra showed narrow and intense bands at 1065, 600, and 614 nm that were ascribed to Nd3+, Sm3+, and Eu3+ 4f–f intraconfigurational transitions 4F3/2→4I11/2, 4G5/2→6H7/2, and 5D0→7F2, respectively. The excellent luminescence properties of films make them new potential groups for visible and/or near‐infrared applications such as sensors and imaging equipment.

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Green Emission of Erbium Doped SYW Phosphors for Optical Thermometry And Solid‐State Lighting

Kumari,

Rao,

Sinha

2024

ChemPhotoChem

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A series of Er3+ ions doped Sr9Y2W4O24 (SYW) phosphors have been synthesised using solid‐state reaction technique. For optical thermometry and solid state lighting applications, the crystal structure, morphological, and luminescence features of the SYW: Er3+ phosphors were explored. X‐ray diffraction (XRD) reveal that synthesised phosphors having single phase with a tetragonal crystal structure and I41/a space group. SEM was used to examine the morphological behaviour and presence of composition elements. The optical bandgap of the phosphor was evaluated using UV‐Vis diffuse reflection spectra (DRS). The photoluminescence (PL) emission spectra were captured under 380 nm excitation, and the peak with the maximum intensity was identified at 563 nm ascribed to transition 4S3/2 →4I15/2, that emits green color in visible region. The temperature dependent PL (TD‐PL) spectra show that SYW phosphor is substantially more thermally stable, having thermal activation energy of about 0.247 eV. Additionally, the fluorescence intensity ratio (FIR) was used to study the optical sensing characteristics of the thermal quenching transitions (2H11/2, 4S3/2) with maximum relative sensitivity (SR) and an absolute sensitivity (SA) being 1.33% K−1and 0.307% K‐1, respectively. All of the aforementioned findings demonstrate that SYW: Er3+ phosphors have potential for optical thermometry and other photonic devices.

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A novel temperature sensitive Sm3+ doped niobate orange-red phosphor: The synthesis and characteristic luminescent property investigation

Cited by 47 publications

References 30 publications

Synthesis and optimization of photoluminescence properties in potential reddish orange emitting niobate phosphor for photonic device applications

Synthesis and optimization of photoluminescence properties in potential reddish orange emitting niobate phosphor for photonic device applications

Luminescence properties of neodymium, samarium, and europium niobate and tantalate thin films

Green Emission of Erbium Doped SYW Phosphors for Optical Thermometry And Solid‐State Lighting

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