Spectroscopic and photoluminescence properties of MgO:Cr 3+ nanosheets for WLEDs

Devaraja, P.B.; Nagabhushana, H.; Sharma, S.C.; Naik, Ramachandra; Prashantha, S.C.; Nagaswarupa, H.P.; Anantharaju, K.S.; Premkumar, H.B.; Jnaneshwara, D.M.

doi:10.1016/j.displa.2015.10.006

Cited by 12 publications

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References 54 publications

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“…The (γ 1 ) band gives the crystal field splitting parameter, Dq , which is equal to 10.15. The Racah parameter B was calculated by assigning a mean value for the (γ 2 ) bands by using the relationship:

normalB = \frac{2 γ_{1}^{2} + γ_{2}^{2} - 3 γ_{1} γ_{2}}{15 γ_{2} - 27 γ_{1}}

…”

Section: Resultsmentioning

confidence: 99%

Extraction of Y₂O₃:Cr³⁺ nanophosphor by eco‐friendly approach and its suitability for white light‐emitting diode applications

Kumar

Ramgopal²,

Sunitha

et al. 2016

Luminescence

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Cr -doped Y O (0.5-9 mol%) was synthesized by a simple solution combustion method using Aloe vera gel as a fuel/surfactant. The final obtained product was calcined at 750°C for 3 h, which is the lowest temperature reported so far for the synthesis of this compound. The calcined product was confirmed for its crystallinity and purity by powder X-ray diffraction (PXRD) studies which showed a single-phase nano cubic phosphor. The particles size estimated by Scherrer formula was in the range of 6-19 nm. The UV-vis spectra showed absorption bands at 198, 272 and 372 nm having band gap energy in the range 4.00-4.26 eV. In order to investigate the possibility of its use in white light emitting display applications, the photoluminescence properties of Cr -doped Y O nanophosphors were studied at an excitation wavelength in the near ultraviolet (UV) light region (361 nm). The emission spectra consisted of emission peaks in the blue ( F → H ), orange ( F → H ) and red ( F → H ) regions. The CIE coordinates (0.33, 0.33) lie in the white light region. Hence Y O :Cr can be used for white light-emitting diode (LED) applications.

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normalB = \frac{2 γ_{1}^{2} + γ_{2}^{2} - 3 γ_{1} γ_{2}}{15 γ_{2} - 27 γ_{1}}

…”

Section: Resultsmentioning

confidence: 99%

Extraction of Y₂O₃:Cr³⁺ nanophosphor by eco‐friendly approach and its suitability for white light‐emitting diode applications

Kumar

Ramgopal²,

Sunitha

et al. 2016

Luminescence

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Down conversation visible emission spectra of Cr3+ doped gadolinium aluminium garnet

Bala¹,

Rani²

2023

Opt Quant Electron

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RETRACTED ARTICLE: Cu-loaded C3N4-MgO nanorods for promising antibacterial and dye degradation

et al. 2022

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Spectroscopic and photoluminescence properties of MgO:Cr 3+ nanosheets for WLEDs

Cited by 12 publications

References 54 publications

Extraction of Y₂O₃:Cr³⁺ nanophosphor by eco‐friendly approach and its suitability for white light‐emitting diode applications

Extraction of Y₂O₃:Cr³⁺ nanophosphor by eco‐friendly approach and its suitability for white light‐emitting diode applications

Down conversation visible emission spectra of Cr3+ doped gadolinium aluminium garnet

RETRACTED ARTICLE: Cu-loaded C3N4-MgO nanorods for promising antibacterial and dye degradation

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Spectroscopic and photoluminescence properties of MgO:Cr 3+ nanosheets for WLEDs

Cited by 12 publications

References 54 publications

Extraction of Y2O3:Cr3+ nanophosphor by eco‐friendly approach and its suitability for white light‐emitting diode applications

Extraction of Y2O3:Cr3+ nanophosphor by eco‐friendly approach and its suitability for white light‐emitting diode applications

Down conversation visible emission spectra of Cr3+ doped gadolinium aluminium garnet

RETRACTED ARTICLE: Cu-loaded C3N4-MgO nanorods for promising antibacterial and dye degradation

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Extraction of Y₂O₃:Cr³⁺ nanophosphor by eco‐friendly approach and its suitability for white light‐emitting diode applications

Extraction of Y₂O₃:Cr³⁺ nanophosphor by eco‐friendly approach and its suitability for white light‐emitting diode applications