Optical properties of red-emitting Ba1.982ZnS3:0.018Eu phosphor

•We synthesized the red-emitting Ba1.982ZnS3:0.018Eu phosphor.•The zero phonon line energy, Stokes shift, and red shift were measured.•The feasibility of the phosphor-converted LED was examined. Ba2(1−x)ZnS3:2xEu (x = 0.001, 0.003, 0.005, 0.007, 0.009, and 0.011) were synthesized via a solid-state r...

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Bibliographic Details
Published inMaterials letters Vol. 347; p. 134603
Main Authors Cho, Young-Sik, Kim, Eung-Dab, Huh, Young-Duk
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.09.2023
Subjects
Ba2ZnS3:Eu
Phosphor-converted LED
Red-emitting phosphor
Spectroscopic parameters
Red-emitting phosphor
Phosphor-converted LED
Ba2ZnS3:Eu
Spectroscopic parameters
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Summary:•We synthesized the red-emitting Ba1.982ZnS3:0.018Eu phosphor.•The zero phonon line energy, Stokes shift, and red shift were measured.•The feasibility of the phosphor-converted LED was examined. Ba2(1−x)ZnS3:2xEu (x = 0.001, 0.003, 0.005, 0.007, 0.009, and 0.011) were synthesized via a solid-state reaction. An assessment of the optimal reaction temperature and composition of the activator Eu2+ ion (x) revealed that the brightest emission was obtained from the Ba1.982ZnS3:0.018Eu prepared at 900 °C. Because Ba1.982ZnS3:0.018Eu exhibits broad absorption and emission bands at ∼475 and ∼650 nm, respectively, it is a good candidate for red-emitting phosphors excited by blue light-emitting diodes. Furthermore, zero-phonon line energy, Stokes shift, and redshift were also calculated.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2023.134603