Optical properties of yellow-emitting Sr3LaNb3O12:Dy3+ phosphors with an abnormal thermal quenching for white light-emitting diode applications

Zhang, Yuchen; Liang, Zhikai; Wang, Weixian; Lin, Yifang; Tang, Rong; Wang, Jingfei; He, Daomiao; Liu, Jinhui; Zhang, Zhong; Zhao, Lingzhi; Deng, Bin; Zhang, Dan; Yu, Ruijin

doi:10.1007/s10854-022-09374-4

Cited by 7 publications

(3 citation statements)

References 56 publications

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“…where n = (x − x e )/(y − y e ), in which (x, y) is the chromaticity coordinate, and (x e , y e ) is the coordinate of the epicenter with the value of (0.3320, 0.1858) [52,53]. The results are also lists in Table 4, which shows low color temperature correlation.…”

Section: Optical Propertiesmentioning

confidence: 97%

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Multifunctional Characteristics of BCTH:0.5% Sm3+ Ceramics Prepared via Hydrothermal Method and Powder Injection Molding

Zhuang,

Wang,

Fang

et al. 2023

Materials

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Briefly, 0.005-mol Sm3+-doped (Ba0.85Ca0.15)(Ti0.9Hf0.1)O3 ([(Ba0.85Ca0.15)0.995Sm0.005](Ti0.9Hf0.1)O3, BCTH:0.005Sm3+) lead-free ceramics were prepared via hydrothermal method and powder injection molding using paraffin and oleic acid as binders, and the effects of preparation method and sintering conditions on microstructure, dielectric behavior and optical properties were investigated. XRD Rietveld refinement reveals the coexistence of orthogonal, rhombohedral and tetragonal phases, in which the crystal structure and phase fraction are influenced greatly by sintering temperature and holding time. The ceramics present enhanced relaxor behavior and frequency dispersion phenomenon as compared with those prepared by the solid-state sintering method, and the diffusive index γ value is within 1.421–1.673. The transition mechanism and luminescence performance of BCTH:0.005 Sm3+ were analyzed by Blasse formula, photoluminescence spectrum and fluorescence lifetimes, where emission peaks show slight blueshift, fluorescence decay lifetime becomes shorter, electric multipole interaction dominates the energy transfer mechanism, and the down-conversion luminescence is one-photon absorption process. The CIE chromaticity color coordinate (0.4746, 0.5048), correlated color temperature 3134 K and color purity 93.58% are achieved, which reveals that the BCTH:0.005 Sm3+ ceramics express high quality yellow emission rather than orange-red light of the hydrothermal method synthesized nano-powder, and have potential application in optical field.

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Section: Optical Propertiesmentioning

confidence: 97%

“…It can be seen that all chromaticity coordinates are close to each other and the emission color of all BCTH:0.005Sm 3+ ceramics do not change significantly with the change in sintering conditions. The correlated color temperature (CCT) can be expressed by the following equation [52,53]:…”

Section: Optical Propertiesmentioning

confidence: 99%

Multifunctional Characteristics of BCTH:0.5% Sm3+ Ceramics Prepared via Hydrothermal Method and Powder Injection Molding

Zhuang,

Wang,

Fang

et al. 2023

Materials

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“…Factors such as the crystal eld strength, covalent nature, and potential energy transfer between the host and dopant ions all play roles in inuencing these properties. 22,23 The host lattice Y 2 Si 2 O 7 is known for its exceptional thermal and chemical stability. It exhibits complex hightemperature polymorphism, existing in various structural phases denoted as a, b, g, d, g, and h forms.…”

Section: Introductionmentioning

confidence: 99%

Realization of a green-emitting pyrosilicate-structured Er³⁺-activated Y₂Si₂O₇ phosphor: a systematic study of opto-electronic characteristics and thermal stability for lighting applications

Kumar,

Singh,

Singh

et al. 2024

RSC Adv.

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Cool White-light Emanation Via Combustion Produced Sr3La(PO4)3: Dy3+ Single-phased Nanophosphors for Effective Lighting Devices

Rani,

Kumar,

Kumar

2023

J Fluoresc

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Optical properties of yellow-emitting Sr3LaNb3O12:Dy3+ phosphors with an abnormal thermal quenching for white light-emitting diode applications

Cited by 7 publications

References 56 publications

Multifunctional Characteristics of BCTH:0.5% Sm3+ Ceramics Prepared via Hydrothermal Method and Powder Injection Molding

Multifunctional Characteristics of BCTH:0.5% Sm3+ Ceramics Prepared via Hydrothermal Method and Powder Injection Molding

Realization of a green-emitting pyrosilicate-structured Er³⁺-activated Y₂Si₂O₇ phosphor: a systematic study of opto-electronic characteristics and thermal stability for lighting applications

Cool White-light Emanation Via Combustion Produced Sr3La(PO4)3: Dy3+ Single-phased Nanophosphors for Effective Lighting Devices

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Optical properties of yellow-emitting Sr3LaNb3O12:Dy3+ phosphors with an abnormal thermal quenching for white light-emitting diode applications

Cited by 7 publications

References 56 publications

Multifunctional Characteristics of BCTH:0.5% Sm3+ Ceramics Prepared via Hydrothermal Method and Powder Injection Molding

Multifunctional Characteristics of BCTH:0.5% Sm3+ Ceramics Prepared via Hydrothermal Method and Powder Injection Molding

Realization of a green-emitting pyrosilicate-structured Er3+-activated Y2Si2O7 phosphor: a systematic study of opto-electronic characteristics and thermal stability for lighting applications

Cool White-light Emanation Via Combustion Produced Sr3La(PO4)3: Dy3+ Single-phased Nanophosphors for Effective Lighting Devices

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Realization of a green-emitting pyrosilicate-structured Er³⁺-activated Y₂Si₂O₇ phosphor: a systematic study of opto-electronic characteristics and thermal stability for lighting applications