The Photoluminescence of a Blue Phosphor Eu2+ Doped Silicate Lutetium Strontium with Triple Sites

Zhou, Zhen; Zhang, Qian; Jin, Yongxing; ran, Rongxia; Lin, Hong; Shi, Tan; Lin, Huayan; Li, yuyan; Fang, Fei; Chen, Hongtao; Meng, Fancheng; Xiang, Guotao; Ma, Li; Wang, Xiaojun

doi:10.2139/ssrn.4118370

Cited by 1 publication

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References 29 publications

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“…The FWHM of the luminescent band increases with increasing temperature. Boltzmann distribution is often used to explain this phenomenon 15,45 :

\begin{equation}{\mathrm{FWHM}}(T) = \sqrt {8Ln2} \times h\nu \sqrt s \times \sqrt {\coth \frac{{h\nu }}{{2kT}}} \end{equation}

where k is Boltzmann constant; S is the Huang‐Rhys parameter; hv is the electronic transitions vibrate phonon energy, and it is the same for 5d and 4f of Eu 2+ . As the temperature rises, the interaction of electrons and phonons is dominant.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis and photoluminescence of novel blue‐emitting phosphor of Eu²⁺‐activated fluoroborate BaGaBO₃F₂

et al. 2023

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Pure and Eu2+‐activated fluoroborate BaGaBO3F2 was prepared using high‐temperature solid‐state reaction. BaGaBO3F2 is a wide band semiconductor with the indirect transition characteristic. The excitation and luminescence spectra of the phosphor were measured, and it was found that Eu2+‐activated BaGaBO3F2 exhibits a bright blue color under ultraviolet (UV) light. The narrow emission band peaked at 425 nm is attributed to the transitions of 4f65d→4f7(8S7/2), and the Stokes shift estimated for this phosphor sample is 3140 cm−1. The lifetime of the luminescence is also reported. The absolute quantum efficiency (QE) of the phosphor was evaluated, and it was found that the absolute QE decreases with increasing Eu2+ concentration. The phosphor shows an excellent quantum efficiency of 72.5% and a high thermal activation energy of 0.342 eV. The study concludes that Eu2+‐doped BaGaBO3F2 phosphor has promising luminescence application abilities and can be used as a blue‐emitting phosphor in a variety of applications.

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“…The FWHM of the luminescent band increases with increasing temperature. Boltzmann distribution is often used to explain this phenomenon 15,45 :

\begin{equation}{\mathrm{FWHM}}(T) = \sqrt {8Ln2} \times h\nu \sqrt s \times \sqrt {\coth \frac{{h\nu }}{{2kT}}} \end{equation}

Section: Resultsmentioning

confidence: 99%

“…The FWHM of the luminescent band increases with increasing temperature. Boltzmann distribution is often used to explain this phenomenon 15,45 :…”

Section: Luminescence Application Abilitiesmentioning

confidence: 99%

Synthesis and photoluminescence of novel blue‐emitting phosphor of Eu²⁺‐activated fluoroborate BaGaBO₃F₂

et al. 2023

View full text Add to dashboard Cite

show abstract

The Photoluminescence of a Blue Phosphor Eu2+ Doped Silicate Lutetium Strontium with Triple Sites

Cited by 1 publication

References 29 publications

Synthesis and photoluminescence of novel blue‐emitting phosphor of Eu²⁺‐activated fluoroborate BaGaBO₃F₂

Synthesis and photoluminescence of novel blue‐emitting phosphor of Eu²⁺‐activated fluoroborate BaGaBO₃F₂

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The Photoluminescence of a Blue Phosphor Eu2+ Doped Silicate Lutetium Strontium with Triple Sites

Cited by 1 publication

References 29 publications

Synthesis and photoluminescence of novel blue‐emitting phosphor of Eu2+‐activated fluoroborate BaGaBO3F2

Synthesis and photoluminescence of novel blue‐emitting phosphor of Eu2+‐activated fluoroborate BaGaBO3F2

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Product

Resources

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Synthesis and photoluminescence of novel blue‐emitting phosphor of Eu²⁺‐activated fluoroborate BaGaBO₃F₂

Synthesis and photoluminescence of novel blue‐emitting phosphor of Eu²⁺‐activated fluoroborate BaGaBO₃F₂