| A novel tunable green- to yellow-emitting β-YFS:Ce³+ phosphor for solid-state lighting. | |
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MedLine Citation:
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PMID: 21732602 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A Ce(3+)-activated fluorosulfide phosphor (β-YFS:Ce(3+)) was synthesized by solid-state reaction in a sealed tube. The crystal structure has been refined from the XRD profiles and there are two different crystallographic rare earth sites, namely, Y(1) and Y(2), where the Ce(3+) ions occupied. The emission band with a maximum at 495 nm of β-Y(0.99)Ce(0.01)FS phosphor was characterized by the 4f-5d transitions of Ce(3+) ion. With increasing Ce(3+) concentration, the emission variations were observed from 495 to 547 nm. When β-YFS:Ce(3+) phosphors were utilized to incorporate with n-UV/blue chip, greenish-white light with color rendering index of 65-77 were obtained. The results indicate that the tunable green- to yellow-emitting β-YFS:Ce(3+) can serve as a potential phosphor for incorporation in fabrication for solid-state lighting. The preparation, spectroscopic characterization, quantum efficiency, thermal-quenching behavior, and related LED device data are also presented. |
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Authors:
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Yun-Chen Wu; De-Yin Wang; Teng-Ming Chen; Chi-Shen Lee; Kuo-Ju Chen; Hao-Chung Kuo |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2011-07-18 |
Journal Detail:
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Title: ACS applied materials & interfaces Volume: 3 ISSN: 1944-8252 ISO Abbreviation: ACS Appl Mater Interfaces Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-08-24 Completed Date: 2011-12-20 Revised Date: 2012-03-28 |
Medline Journal Info:
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Nlm Unique ID: 101504991 Medline TA: ACS Appl Mater Interfaces Country: United States |
Other Details:
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Languages: eng Pagination: 3195-9 Citation Subset: IM |
Affiliation:
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Phosphors Research Laboratory, Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Hsinchu 30010, Taiwan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Cerium
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chemistry* Color Lighting Quantum Theory Sulfides / chemistry* Temperature Ultraviolet Rays |
| Chemical | |
Reg. No./Substance:
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0/Sulfides; 7440-45-1/Cerium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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