Spectroscopic characterization of Eu3+-doped KSrYSi2O7 phosphor for NUV LEDs: Estimation of the Judd Ofelt parameter

Verma, Shraddha; Ayoub, Irfan; Som, Sudipta; Sharma, Vishal; Kumar, G.N. Anil; Swart, H.C.; Kumar, Vijay

doi:10.1016/j.optmat.2022.113416

Cited by 6 publications

(1 citation statement)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This rise in the band gap value could be attributed to the high optical band gap of RE ions [32]. The calculated band gap value suggests that the synthesized phosphor fell within the category of wide band gap semiconductors, making it suitable for various photonic, lasing, and optoelectronic applications [33].…”

Section: Resultsmentioning

confidence: 99%

Ho³⁺‐doped BaGd₂ZnO₅ green‐emitting phosphor for solid‐state lighting: synthesis, characterization, and photoluminescence properties

Ayoub,

Kumar

2024

Luminescence

Self Cite

View full text Add to dashboard Cite

In this work, we present the synthesis of a green‐emitting series of BaGd2ZnO5:xHo3+ (0.5–3 mol%) phosphors using a high‐temperature solid‐state reaction method. Phase purity and crystal structure information were evaluated through X‐ray powder diffraction patterns. Optical properties were examined through diffuse reflectance spectra, revealing that the prepared phosphor exhibited a band gap of 4.65 eV. The effect of Ho3+ doping on the morphology and ion distribution on the surface was assessed using scanning electron microscopy and time‐of‐flight secondary ion mass spectrometry techniques, respectively. The excitation spectra of the synthesized phosphor exhibited a charge transfer band and strong absorption transitions. The emission spectra displayed typical holmium emission characteristics, featuring a strong green emission band associated with f–f transitions from 5F4 + 2S2 → 5I8. Decay dynamics of the synthesized phosphor exhibited a single‐exponential decay pattern, with lifetimes ranging from 0.103 to 0.053 ms. The intrinsic radiative lifetime, calculated through Auzel's fitting was determined to be 0.14 ms. Using the emission spectra, colorimetric behaviour was analyzed, revealing that the Commission Internationale de l'éclairage (CIE) coordinates exclusively lay within the green region at (0.285, 0.705), with an impressive colour purity of 99.6%. Given these marked properties, the synthesized phosphor exhibits great potential for a wide range of green‐emitting applications, including displays, white light‐emitting diodes, and security signage.

show abstract

Section: Resultsmentioning

confidence: 99%

Ho³⁺‐doped BaGd₂ZnO₅ green‐emitting phosphor for solid‐state lighting: synthesis, characterization, and photoluminescence properties

Ayoub,

Kumar

2024

Luminescence

Self Cite

View full text Add to dashboard Cite

show abstract

Photoluminescence properties of a reddish orange-emitting phosphor Ba3P4O13:Eu3+ with high thermal quenching resistance, high color thermostability, and high quantum efficiency for w-LEDs

Li,

Wang

2023

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Novel red-emitting Mn4+ activated Mg4Ta2O9 phosphors for flexible display and anti-counterfeiting applications

Xiang,

2024

Ceramics International

View full text Add to dashboard Cite

Spectroscopic characterization of Eu3+-doped KSrYSi2O7 phosphor for NUV LEDs: Estimation of the Judd Ofelt parameter

Cited by 6 publications

References 65 publications

Ho³⁺‐doped BaGd₂ZnO₅ green‐emitting phosphor for solid‐state lighting: synthesis, characterization, and photoluminescence properties

Ho³⁺‐doped BaGd₂ZnO₅ green‐emitting phosphor for solid‐state lighting: synthesis, characterization, and photoluminescence properties

Photoluminescence properties of a reddish orange-emitting phosphor Ba3P4O13:Eu3+ with high thermal quenching resistance, high color thermostability, and high quantum efficiency for w-LEDs

Novel red-emitting Mn4+ activated Mg4Ta2O9 phosphors for flexible display and anti-counterfeiting applications

Contact Info

Product

Resources

About

Spectroscopic characterization of Eu3+-doped KSrYSi2O7 phosphor for NUV LEDs: Estimation of the Judd Ofelt parameter

Cited by 6 publications

References 65 publications

Ho3+‐doped BaGd2ZnO5 green‐emitting phosphor for solid‐state lighting: synthesis, characterization, and photoluminescence properties

Ho3+‐doped BaGd2ZnO5 green‐emitting phosphor for solid‐state lighting: synthesis, characterization, and photoluminescence properties

Photoluminescence properties of a reddish orange-emitting phosphor Ba3P4O13:Eu3+ with high thermal quenching resistance, high color thermostability, and high quantum efficiency for w-LEDs

Novel red-emitting Mn4+ activated Mg4Ta2O9 phosphors for flexible display and anti-counterfeiting applications

Contact Info

Product

Resources

About

Ho³⁺‐doped BaGd₂ZnO₅ green‐emitting phosphor for solid‐state lighting: synthesis, characterization, and photoluminescence properties

Ho³⁺‐doped BaGd₂ZnO₅ green‐emitting phosphor for solid‐state lighting: synthesis, characterization, and photoluminescence properties