Synthesis and photoluminescence properties of red, green and blue emitting LaYO3:M (M = Eu3+, Tb3+, Sm3+,Bi3+, Pb2+) phosphors

Taikar, D.R.; Tamboli, Sumedha; Dhoble, S.J.

doi:10.1016/j.ijleo.2017.05.095

Cited by 22 publications

(4 citation statements)

References 26 publications

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“…It shows a broad band with an intense peak centred at 279 nm along with a shoulder peak at 358 nm. These excitation peaks have been observed for Li 2 SO 4 :Ce phosphor and hence, we infer that Ce 3+ ions have entered the Li 2 SO 4 lattice . A less intense peak at 228 nm can also be seen in the excitation spectrum.…”

Section: Resultssupporting

confidence: 62%

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Green‐light emission through energy transfer from Ce³⁺ to Tb³⁺ ions in the Li₂SO₄–Al₂(SO₄)₃ system

2019

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An energy transfer process from Ce3+ to Tb3+ ions was successfully achieved in a Li2SO4–Al2(SO4)3 mixed‐sulphate system. A wet‐chemical synthesis was employed to prepare the Li2SO4–Al2(SO4)3 system by doping Ce3+ and Tb3+ ions individually as well as collectively. The phases were identified using X‐ray diffraction studies. The as‐prepared samples were characterized by FT‐IR and photoluminescence measurements. Green‐light emission was exhibited by Ce3+, Tb3+ co‐doped Li2SO4–Al2(SO4)3 system, thus, indicating its potential as a material for display devices or in the lamp industry.

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Section: Resultssupporting

confidence: 62%

“…These excitation peaks have been observed for Li 2 SO 4 :Ce phosphor and hence, we infer that Ce 3+ ions have entered the Li 2 SO 4 lattice. [20] A less intense peak at 228 nm can also be seen in the excitation spectrum. This peak was not observed by Taikar small.…”

Section: Resultsmentioning

confidence: 95%

Green‐light emission through energy transfer from Ce³⁺ to Tb³⁺ ions in the Li₂SO₄–Al₂(SO₄)₃ system

2019

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“…The calculated color coordinate nearly matched with National Television Standard Committee (NTSC) standard values for blue color. [ 24 ]…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Luminescence Study of n‐UV Excitable Tm³⁺‐Activated Blue Phosphor

Taikar¹,

Taikar

Nagde

et al. 2021

Macromolecular Symposia

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Tm3+‐doped La2O3 phosphors with different doping concentration are prepared by co‐precipitation method. The prepared phosphor is characterized by X‐ray powder diffraction (XRD), SEM, Fourier transform infrared (FT‐IR) spectroscopy, and photoluminescence (PL) techniques. The XRD analysis confirms the formation of La2O3. PL measurement shows that the phosphor exhibit characteristic Tm3+ bright blue emission attributed to transition from 1D2 → 3F4 of Tm3+ ions, at 363 nm excitation. The Commission International de I'Eclairage (CIE) chromaticity color coordinates of prepared phosphor is calculated and presented. The excitation peak located at 363 nm matches with the emission wavelength of near UV‐LED chip, this indicates that the prepared phosphor is a promising blue light‐emitting candidate for eco‐friendly solid state lighting (W‐LED) application.

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“…The emission range covers the UV-to-visible light region . The ZnB 2 O 4 :Pb 2+ phosphor synthesized by Yılmazet al emits UV light at ∼388 nm (A band), and other phosphors emit in the blue spectral range. − The Pb 2+ -doped CaZnOS phosphor possesses excellent UV-excitation and blue-emission luminescent properties. Hence, we believe that a core–shell CaS:Eu 2+ @CaZnOS:Pb 2+ phosphor shows the desired DE 2 properties.…”

Section: Introductionmentioning

confidence: 83%

Novel Dual-Excitation and Dual-Emission Materials: Eu²⁺,Pb²⁺ Co-doped Core–Shell-Structured CaS@CaZnOS Phosphors and Their Application for Highly Efficient Photosynthesis of Plants

Liang

Song

et al. 2021

ACS Appl. Mater. Interfaces

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ZnOS phosphors were synthesized by a two-step high-temperature solid-phase method. The as-synthesized CaS:Eu 2+ ,Pb 2+ @Ca-ZnOS:Pb 2+ phosphors possess excellent dual-excitation and dualemission (DE 2 ) luminescent properties, which give rise to red emission peaking at 650 nm under green excitation, derived from the core CaS:Eu 2+ ,Pb 2+ , and blue emission peaking at 424 nm, originating from the shell CaZnOS:Pb 2+ , under ultraviolet (UV) excitation. In addition, tunable red/blue emission can be achieved by changing the doping concentration of Pb 2+ in the CaZnOS shell. The red/blue dual emission of core−shell DE 2 phosphors under excitation of UV and green light significantly matches with the absorption spectrum of chlorophyll (a, b); hence, the as-prepared phosphors are excellent solar spectral conversion (SSC) auxiliaries of plastic films or laminated glass for greenhouses and provide ideas for creating more efficient and practically valuable SSC auxiliaries. The DE 2 properties are described, and the energy transfer mechanism from Pb 2+ to Eu 2+ in the core is proposed and discussed in detail.

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Synthesis and photoluminescence properties of red, green and blue emitting LaYO3:M (M = Eu3+, Tb3+, Sm3+,Bi3+, Pb2+) phosphors

Cited by 22 publications

References 26 publications

Green‐light emission through energy transfer from Ce³⁺ to Tb³⁺ ions in the Li₂SO₄–Al₂(SO₄)₃ system

Green‐light emission through energy transfer from Ce³⁺ to Tb³⁺ ions in the Li₂SO₄–Al₂(SO₄)₃ system

Synthesis and Luminescence Study of n‐UV Excitable Tm³⁺‐Activated Blue Phosphor

Novel Dual-Excitation and Dual-Emission Materials: Eu²⁺,Pb²⁺ Co-doped Core–Shell-Structured CaS@CaZnOS Phosphors and Their Application for Highly Efficient Photosynthesis of Plants

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Synthesis and photoluminescence properties of red, green and blue emitting LaYO3:M (M = Eu3+, Tb3+, Sm3+,Bi3+, Pb2+) phosphors

Cited by 22 publications

References 26 publications

Green‐light emission through energy transfer from Ce3+ to Tb3+ ions in the Li2SO4–Al2(SO4)3 system

Green‐light emission through energy transfer from Ce3+ to Tb3+ ions in the Li2SO4–Al2(SO4)3 system

Synthesis and Luminescence Study of n‐UV Excitable Tm3+‐Activated Blue Phosphor

Novel Dual-Excitation and Dual-Emission Materials: Eu2+,Pb2+ Co-doped Core–Shell-Structured CaS@CaZnOS Phosphors and Their Application for Highly Efficient Photosynthesis of Plants

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Product

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Green‐light emission through energy transfer from Ce³⁺ to Tb³⁺ ions in the Li₂SO₄–Al₂(SO₄)₃ system

Green‐light emission through energy transfer from Ce³⁺ to Tb³⁺ ions in the Li₂SO₄–Al₂(SO₄)₃ system

Synthesis and Luminescence Study of n‐UV Excitable Tm³⁺‐Activated Blue Phosphor

Novel Dual-Excitation and Dual-Emission Materials: Eu²⁺,Pb²⁺ Co-doped Core–Shell-Structured CaS@CaZnOS Phosphors and Their Application for Highly Efficient Photosynthesis of Plants