Luminescence property and emission enhancement of YbAlO3:Mn4+ red phosphor by Mg2+ or Li+ ions

Cao, Renping; Luo, Wenjie; Xu, Haidong; Luo, Zhiyang; Hu, Qianglin; Fu, Ting; Peng, Dedong

doi:10.1016/j.optmat.2016.01.034

Cited by 29 publications

(5 citation statements)

References 27 publications

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“…47 The broad excitation bands of BLMS phosphors located in the near-UV region, indicating that BLMN:Mn 4+ were suitable to be used as far-red phosphors with efficient excitation of near-UV LED chips. 48,49 Upon 340 nm excitation, the obtained emission spectrum had a narrow emission band in the wavelength range of 650-800 nm peaking at 700 nm, which was attributed to the spin-forbidden 2 E g / 4 A 2g transition of Mn 4+ . [50][51][52] The full width at half maximum (FWHM) of the emission band was about 38 nm, which was narrower than that of Ca 3 La 2 W 2 O 12 :Mn 4+ (FWHM: 39 nm), Li 2 MgTiO 4 :Mn 4+ (FWHM: 46 nm), and Na 2 MgAl 10 O 17 :Mn 4+ (FWHM: 105 nm).…”

Section: Resultsmentioning

confidence: 91%

Mn⁴⁺-activated BaLaMgSbO₆ double-perovskite phosphor: a novel high-efficiency far-red-emitting luminescent material for indoor plant growth lighting

et al. 2019

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Section: Resultsmentioning

confidence: 91%

Mn⁴⁺-activated BaLaMgSbO₆ double-perovskite phosphor: a novel high-efficiency far-red-emitting luminescent material for indoor plant growth lighting

et al. 2019

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“…The lifetime of SMWO:0.006Mn 4+ and SMWM:0.006Mn 4+ ,0.2Yb 3+ can be shown in Figure 11. The luminescence decay curves are well fitted by a first‐order exponential function [34]:

I_{t} goodbreak= A_{1} \exp ((), goodbreak- normalt / τ_{1}) goodbreak+ A_{2} \exp ((), goodbreak- normalt / τ_{2})

…”

Section: Resultsmentioning

confidence: 99%

“…The lifetime of SMWO:0.006Mn 4+ and SMWM:0.006Mn 4+ ,0.2Yb 3+ can be shown in Figure 11. The luminescence decay curves are well fitted by a first-order exponential function [34]: F I G U R E 1 0 Electron paramagnetic resonance (EPR) spectra of Sr 2 MgWO 6 :0.006Mn 4+ and Sr 2 MgWO 6 :0.006Mn 4+ ,0.2Yb 3+ .…”

Section: Decay Curvementioning

confidence: 95%

A novel Mn⁴⁺‐activated far‐red Sr₂MgWO₆ phosphor: synthesis, luminescence enhancement, and application prospect

Cheng

Long

et al. 2023

Luminescence

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A novel far‐red emitting phosphor Sr2MgWO6: Mn4+ was fabricated using high‐temperature solid‐state reaction. X‐ray diffraction patterns, scanning electron microscopy images, and photoluminescence excitation and photoluminescence spectra for this phosphor were analyzed in detail. The analysis revealed that its emission ranged from 600 to 800 nm and peaked at 699 nm, which was attributed to the 2Eg→4A2g transition of Mn4+ under 314 nm excitation. Moreover, we introduced rare‐earth Yb3+ ions into the Sr2MgWO6:Mn4+ to improve its far‐red emitting intensity. The photoluminescence (PL) intensity of the Yb3+ co‐doped phosphor was three times higher than that of the single‐doped phosphor. Therefore charge compensation is an efficient approach to improving PL intensity. The phosphor emitted a far‐red light that resembled the pigments essential for plant growth in terms of the absorption spectrum. Therefore, the obtained phosphor, Sr2MgWO6:0.006Mn4+,0.2Yb3+, had the potential to be a new type of far‐red luminescent powder for indoor plant growth LEDs.

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“…An increase of the PL-intensity as a function of the Sr-content was previously observed by our group during the investigation of earthalkaline containing MASnI 3 systems 10 and explained by supposing the incorporation of Sr-ions into the perovskite crystalline structure and their interaction with the iodine ions which change the local field strength of the Sn-ions in the [SnI 6 ] 2− octahedra as observed in oxide phosphors. [27][28][29] The Sn-X (X = halogen) interaction can cause an increase of the local disorder into the crystalline lattice and the observed effect of this greater disorder is detected by the higher values of the luminescence intensity. At increasing the Sr-content a quenching effect may take place.…”

Section: Table III Optical Properties Of Thementioning

confidence: 99%

Investigation of Methylammonium Tin Strontium Bromide Perovskite Systems

Dimesso

Mayer

Jaegermann

2018

ECS J. Solid State Sci. Technol.

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The properties of methylammonium-tin-strontium bromide systems (CH 3 NH 3 Sn 1-x Sr x Br 3 , 0.0 ≤ x ≤ 0.1) were investigated. The X-ray diffraction analysis (XRD) revealed the presence of the untilted cubic Pm-3m perovskite and orthorhombic SnBr 2 as major crystalline phases. The morphological analysis confirmed the XRD data by detecting the formation of polyhedral shaped crystallites attributed to MASnBr 3 perovskite and elongated crystallites related to SnBr 2 phase. Derivative differential thermal analysis (DDTA) and derivative thermogravimetric analysis (DTG) revealed a thermal stability of MASnBr 3 phase till T = 250 • C and showed the presence of more thermal events related to a multistep decomposition process. The addition of Sr-ions retained the cubic crystalline structure of the perovskite and enhanced its thermal stability at T = 150 • C by reducing the weight loss rates. The optical spectra displayed values of absorption edges between 624 nm and 636 nm. The Tauc plots revealed a direct semiconducting behavior with band energy gaps at ∼2.02-2.03 eV. The emission photoluminescence (PL) spectra, measured at room temperature and excitation wavelength λ exc = 380 nm as well as the excitation photoluminescence (PL) spectra, measured at room temperature and emission wavelength λ em = 520 nm showed a dramatic increase of the intensity by adding the Sr-ions reaching a maximum for x = 0.025.

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Luminescence property and emission enhancement of YbAlO3:Mn4+ red phosphor by Mg2+ or Li+ ions

Cited by 29 publications

References 27 publications

Mn⁴⁺-activated BaLaMgSbO₆ double-perovskite phosphor: a novel high-efficiency far-red-emitting luminescent material for indoor plant growth lighting

Mn⁴⁺-activated BaLaMgSbO₆ double-perovskite phosphor: a novel high-efficiency far-red-emitting luminescent material for indoor plant growth lighting

A novel Mn⁴⁺‐activated far‐red Sr₂MgWO₆ phosphor: synthesis, luminescence enhancement, and application prospect

Investigation of Methylammonium Tin Strontium Bromide Perovskite Systems

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Luminescence property and emission enhancement of YbAlO3:Mn4+ red phosphor by Mg2+ or Li+ ions

Cited by 29 publications

References 27 publications

Mn4+-activated BaLaMgSbO6 double-perovskite phosphor: a novel high-efficiency far-red-emitting luminescent material for indoor plant growth lighting

Mn4+-activated BaLaMgSbO6 double-perovskite phosphor: a novel high-efficiency far-red-emitting luminescent material for indoor plant growth lighting

A novel Mn4+‐activated far‐red Sr2MgWO6 phosphor: synthesis, luminescence enhancement, and application prospect

Investigation of Methylammonium Tin Strontium Bromide Perovskite Systems

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Mn⁴⁺-activated BaLaMgSbO₆ double-perovskite phosphor: a novel high-efficiency far-red-emitting luminescent material for indoor plant growth lighting

Mn⁴⁺-activated BaLaMgSbO₆ double-perovskite phosphor: a novel high-efficiency far-red-emitting luminescent material for indoor plant growth lighting

A novel Mn⁴⁺‐activated far‐red Sr₂MgWO₆ phosphor: synthesis, luminescence enhancement, and application prospect