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Structural and Optical Properties of Yellow-Emitting CaGd2ZrSc(AlO4)3:Ce3+ Phosphor for Solid-State Lighting

Title
Structural and Optical Properties of Yellow-Emitting CaGd2ZrSc(AlO4)3:Ce3+ Phosphor for Solid-State Lighting
Author
임원빈
Keywords
Garnet structure; Yellow-emitting phosphor; White LEDs
Issue Date
2017-09
Publisher
KOREAN CERAMIC SOC
Citation
JOURNAL OF THE KOREAN CERAMIC SOCIETY, v. 54, no. 5, page. 422-428
Abstract
Single-phase yellow phosphor, CaGd2-xZrSc(AlO4)(3):xCe(3+) (CGZSA:Ce3+), possessing cubic symmetry with varied Ce3+ concentrations, was synthesized using the solid-state reaction method. The samples were characterized using X-ray diffraction (XRD), excitation spectra, emission spectra, thermal quenching, and decay curves. The cubic phase of CGZSA:Ce3+ phosphor was confirmed via XRD analysis. The photoluminescence spectra of CGZSA:Ce3+ phosphor demonstrated that the phosphor could be excited at the wavelength of 440 nm; a broad yellow emission band was centered at 541 nm. These results indicate that the phosphors are adequately excited by blue light and have the potential to function as yellow-emitting phosphors for applications in white lightemitting diodes.
URI
https://www.jkcs.or.kr/journal/view.php?doi=10.4191/kcers.2017.54.5.09https://repository.hanyang.ac.kr/handle/20.500.11754/115444
ISSN
1229-7801; 2234-0491
DOI
10.4191/kcers.2017.54.5.09
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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