Enhanced photoluminescence properties of BaAl2O4: Ce3+/Li+ yellow phosphors

Kumar, K. Ganesh; Bhargav, P. Balaji; Aravinth, K.; Balaji, C.

doi:10.1007/s10854-022-08416-1

Cited by 6 publications

(2 citation statements)

References 33 publications

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“…Figure 5b presents the FTIR spectra of BaAl 2 O 4 and BaAl 2 O 4 :Eu 2+ ,Nd 3+ . The peaks in the frequency range of 500–1000 cm −1 represent the stretching vibrations of Al‐O, Ba‐O, and Ba‐O‐Al in BaAl 2 O 4 crystals [24]. The peaks at 1427 cm −1 can be assigned to the stretching vibrations of AlO 4 in tetrahedral BaAl 2 O 4 , which verifies the formation of the BaAl 2 O 4 phase in agreement with the XRD and Raman observations [24].…”

Section: Resultssupporting

confidence: 73%

Broadband sensitized near‐infrared emission in Eu²⁺‐Nd³⁺ co‐doped BaAl₂O₄ as a potential spectral modulator for silicon solar cells

Song,

Lou,

Zhu

et al. 2024

Luminescence

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The near‐infrared (NIR) down‐conversion process for broadband sensitization has been studied in Eu2+‐Nd3+ co‐doped BaAl2O4. This material has a broad absorption band of 200–480 nm and can convert photons in the visible region into NIR photons. The NIR emission at 1064 nm, attributed to the Nd3+:4F3/2 → 4I11/2 transition, matches the bandgap of Si, allowing Si solar cells to utilize the solar spectrum better. The energy transfer (ET) process between Eu2+ and Nd3+ was demonstrated using photoluminescence spectra and luminescence decay curves, and Eu2+ may transfer energy to Nd3+ through the cooperative energy transfer (CET) to achieve the down‐conversion process. The energy transfer efficiency (ETE) and theoretical quantum efficiency (QE) were 68.61% and 156.34%, respectively, when 4 mol% Nd3+ was introduced. The results indicate that BaAl2O4:Eu2+‐Nd3+ can serve as a potential modulator of the solar spectrum and is expected to be applied to Si solar cells.

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Section: Resultssupporting

confidence: 73%

Broadband sensitized near‐infrared emission in Eu²⁺‐Nd³⁺ co‐doped BaAl₂O₄ as a potential spectral modulator for silicon solar cells

Song,

Lou,

Zhu

et al. 2024

Luminescence

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show abstract

“…Similarly, in-situ Raman spectroscopy reveals the gradual disappearance of Co 3 O 4 fingerprints around ~490, ~525, ~610, and ~690 cm -1 before 400 °C 33 , and the replacement of BaCO 3 fingerprints 34 around ~139, ~698, and ~1060 cm –1 by those of BaAl 2 O 4 around ~193, ~271, ~491, ~581, and ~680 cm -1 at 700 °C (Fig. 3g ) 35 . Online MS is used to monitor the outlet gas during the thermal treatment under H 2 flow.…”

Section: Resultsmentioning

confidence: 68%

Synthesis of core@shell catalysts guided by Tammann temperature

Xiong,

Xu,

et al. 2024

Nat Commun

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Designing high-performance thermal catalysts with stable catalytic sites is an important challenge. Conventional wisdom holds that strong metal-support interactions can benefit the catalyst performance, but there is a knowledge gap in generalizing this effect across different metals. Here, we have successfully developed a generalizable strong metal-support interaction strategy guided by Tammann temperatures of materials, enabling functional oxide encapsulation of transition metal nanocatalysts. As an illustrative example, Co@BaAl2O4 core@shell is synthesized and tracked in real-time through in-situ microscopy and spectroscopy, revealing an unconventional strong metal-support interaction encapsulation mechanism. Notably, Co@BaAl2O4 exhibits exceptional activity relative to previously reported core@shell catalysts, displaying excellent long-term stability during high-temperature chemical reactions and overcoming the durability and reusability limitations of conventional supported catalysts. This pioneering design and widely applicable approach has been validated to guide the encapsulation of various transition metal nanoparticles for environmental tolerance functionalities, offering great potential to advance energy, catalysis, and environmental fields.

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Impact of Dy3+ and Ce3+ ion doping on the photoluminescence, thermoluminescence, and electrochemical properties of strontium aluminate (SrAl2O4) and barium aluminate (BaAl2O4) phosphors

Hema,

Kumar,

Dhanalakshmi

et al. 2024

J Mater Sci: Mater Electron

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Enhanced photoluminescence properties of BaAl2O4: Ce3+/Li+ yellow phosphors

Cited by 6 publications

References 33 publications

Broadband sensitized near‐infrared emission in Eu²⁺‐Nd³⁺ co‐doped BaAl₂O₄ as a potential spectral modulator for silicon solar cells

Broadband sensitized near‐infrared emission in Eu²⁺‐Nd³⁺ co‐doped BaAl₂O₄ as a potential spectral modulator for silicon solar cells

Synthesis of core@shell catalysts guided by Tammann temperature

Impact of Dy3+ and Ce3+ ion doping on the photoluminescence, thermoluminescence, and electrochemical properties of strontium aluminate (SrAl2O4) and barium aluminate (BaAl2O4) phosphors

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Enhanced photoluminescence properties of BaAl2O4: Ce3+/Li+ yellow phosphors

Cited by 6 publications

References 33 publications

Broadband sensitized near‐infrared emission in Eu2+‐Nd3+ co‐doped BaAl2O4 as a potential spectral modulator for silicon solar cells

Broadband sensitized near‐infrared emission in Eu2+‐Nd3+ co‐doped BaAl2O4 as a potential spectral modulator for silicon solar cells

Synthesis of core@shell catalysts guided by Tammann temperature

Impact of Dy3+ and Ce3+ ion doping on the photoluminescence, thermoluminescence, and electrochemical properties of strontium aluminate (SrAl2O4) and barium aluminate (BaAl2O4) phosphors

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Broadband sensitized near‐infrared emission in Eu²⁺‐Nd³⁺ co‐doped BaAl₂O₄ as a potential spectral modulator for silicon solar cells

Broadband sensitized near‐infrared emission in Eu²⁺‐Nd³⁺ co‐doped BaAl₂O₄ as a potential spectral modulator for silicon solar cells