Synthesis and photoluminescence properties of novel orange-emitting Sm3+-activated LaTiSbO6 phosphors for WLEDs

Xie, Yue; Geng, Xue; Hu, Ziyue; Zhou, Zijing; Zhou, Li; Zhao, Yixuan; Chen, Jiexin; Chen, Wensheng; Gong, Ning; Deng, Bin; Yu, Ruijin

doi:10.1016/j.optlastec.2021.107605

Cited by 5 publications

(3 citation statements)

References 41 publications

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“…The La–O interaction within distorted tetracapped trigonal prisms [LaO 6 Br 3 ] falls into a narrow range of 2.468(4)-2.672(5) Å, which is comparable to many oxides, such as Na 3 La(AsO 4 ) 2 (2.415–2.927 Å), LaTiSbO 6 (2.463 Å), LaClMoO 4 (2.490–2.633 Å), LaClWO 4 (2.491–2.547 Å), etc. The bonding pictures of La–O interactions were also studied via ELF simulations coupled with COHP calculations shown in Figure d,e, respectively.…”

Section: Resultsmentioning

confidence: 99%

Heteroanionic LaBrVIO₄ (VI = Mo, W): Excellence in Both Nonlinear Optical Properties and Photoluminescent Properties

Jiao,

Mireles,

Ensz

et al. 2023

Chem. Mater.

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Five heteroanionic oxybromides, LaBrMoO4, LaBrWO4, (La0.9Sm0.1)BrMoO4, (La0.9Sm0.1)BrWO4, and (La0.9Dy0.1)BrWO4, were grown by a high-temperature salt flux method. Millimeter-sized crystals were collected after salt flux was removed by DI water. The crystal structures were accurately determined by single-crystal X-ray diffraction. LaBrMoO4 is isostructural to LaBrWO4. The substitution of lanthanum for rare earth elements does not change the crystal structure. LaBrWO4 is the first acentric tungsten-containing compound of the REBrVIO4 (RE = Y, La–Lu; VI = Mo, W) system. The bonding picture of LaBrWO4 was understood by crystal orbital Hamilton population calculations (COHP) and electron localization function (ELF) analysis, which confirmed the uncommon 4 + 1 coordination of tungsten surrounded by oxygen atoms. Linear optical properties such as bandgaps, infrared spectrum (IR), and birefringence of the title compounds were recorded in this work. LaBrMoO4 exhibits a moderate second harmonic generation (SHG) response of 0.47× KH2PO4 (KDP) for incident 1064 nm radiation. LaBrWO4 and (La0.9Dy0.1)BrWO4 exhibit superior SHG responses of 1.66× KDP and 3.71× KDP for samples for incident 1064 nm radiation, respectively. All measured samples exhibited type-I phase matching behavior. Density function calculations (DFT) verified that the optical properties of LaBrMoO4 and LaBrWO4 are predominantly controlled by [VIO5]VI = Mo,W units. Via the rare earth elements Sm and Dy doping, LaBrMoO4 and LaBrWO4 emit visible lights of various wavelengths upon UV light excitation. The distortion of lambda-shaped one-dimensional (1D) [VIO5]VI = Mo,W strands plays an important role in enhancing nonlinear optical properties and photoluminescent properties within LaBrWO4 and (La0.9Dy0.1)BrWO4 compared with LaBrMoO4.

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Section: Resultsmentioning

confidence: 99%

Heteroanionic LaBrVIO₄ (VI = Mo, W): Excellence in Both Nonlinear Optical Properties and Photoluminescent Properties

Jiao,

Mireles,

Ensz

et al. 2023

Chem. Mater.

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“…[4] Similarly, Yan et al prepared novel orange-emitting Sm 3+ -activated LaTiSbO 6 double perovskite for WLEDs. [5] Some researchers ignore DFT predictions and only demonstrate specific application areas for specific materials through extensive experiments. Therefore, the photoelectric properties of double perovskite are predicted by DFT, their application areas are predicted and experimentally demonstrated.…”

Section: Introductionmentioning

confidence: 99%

Unveiling Local Electronic Structures of Manganese‐Doped Double Perovskites Red Emitters

Zheng,

Du,

et al. 2024

Laser & Photonics Reviews

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Over the past few years, light‐emitting diodes (LEDs) have emerged as an efficient replacement for standard incandescent and fluorescent lamps, due to their superior efficiency, energy conservation, service longevity, reliability, and affordability. However, identifying a red emitter for white LEDs has presented significant challenges. This study seeks to synthesize and analyze a novel red emitter, investigating its potential use in white LEDs and indoor plant growth lighting. The Sr2Lu(Nb,Mn)O6 is manufactured employing the traditional high‐temperature solid‐phase method. The internal and external quantum efficiencies (IQE and EQE) of double perovskites reached 32.39% and 21.67%. The g value calculates to 2.146, which corroborates that the magnetic dipolar transitions of Mn4+ ions inhabit symmetric octahedral sites. First‐principles investigations are utilized to unveil local electronic structures. Emission spectra reveal a substantial broad red emission peak at 688 nm. The Tanabe–Sugano diagram is applied to understand the luminescence mechanism. Additionally, the evaluation of parameters such as the internal UV emission ratio, crystal field strength, and Racah parameters is conducted. The luminescent intensity of the Sr2Lu(Nb,Mn)O6 can still be maintained at 60% upon reaching a temperature of 423 K. The findings suggest that Sr2Lu(Nb,Mn)O6 offers a novel alternative for white LEDs and indoor plant growth lighting.

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“…Therefore, phosphors codoped with Bi 3+ and Eu 3+ are excellent temperature-sensing materials [ [17] , [18] , [19] , [20] , [21] , [22] ]. In addition, antimonates are often used as fluorescent material substrates because of their chemical stability and low synthesis costs [ 3 , 23 , 24 ]. To the best of our knowledge, GdY 2 SbO 7 has not been reported as a phosphor host.…”

Section: Introductionmentioning

confidence: 99%

Novel phosphor GdY2SbO7 co-dope with Eu3+ and Bi3+ for optical thermometer

Yin,

Jiang,

Tian

2024

Heliyon

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Synthesis and photoluminescence properties of novel orange-emitting Sm3+-activated LaTiSbO6 phosphors for WLEDs

Cited by 5 publications

References 41 publications

Heteroanionic LaBrVIO₄ (VI = Mo, W): Excellence in Both Nonlinear Optical Properties and Photoluminescent Properties

Heteroanionic LaBrVIO₄ (VI = Mo, W): Excellence in Both Nonlinear Optical Properties and Photoluminescent Properties

Unveiling Local Electronic Structures of Manganese‐Doped Double Perovskites Red Emitters

Novel phosphor GdY2SbO7 co-dope with Eu3+ and Bi3+ for optical thermometer

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Synthesis and photoluminescence properties of novel orange-emitting Sm3+-activated LaTiSbO6 phosphors for WLEDs

Cited by 5 publications

References 41 publications

Heteroanionic LaBrVIO4 (VI = Mo, W): Excellence in Both Nonlinear Optical Properties and Photoluminescent Properties

Heteroanionic LaBrVIO4 (VI = Mo, W): Excellence in Both Nonlinear Optical Properties and Photoluminescent Properties

Unveiling Local Electronic Structures of Manganese‐Doped Double Perovskites Red Emitters

Novel phosphor GdY2SbO7 co-dope with Eu3+ and Bi3+ for optical thermometer

Contact Info

Product

Resources

About

Heteroanionic LaBrVIO₄ (VI = Mo, W): Excellence in Both Nonlinear Optical Properties and Photoluminescent Properties

Heteroanionic LaBrVIO₄ (VI = Mo, W): Excellence in Both Nonlinear Optical Properties and Photoluminescent Properties