Document Detail


Novel CaMg2Al16O27: Mn4+-Based Red Phosphor: A Potential Color Converter for High-Powered Warm W-LED.
MedLine Citation:
PMID:  25427724     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
New non-rare-earth based oxide red phosphor discovery is of great interest in the field of energy-efficient LED lighting. In this work, a novel blue-light activated CaMg2Al16O27: Mn4+ (CMA: Mn4+) phosphor, showing strong red emission peaked at ~655 nm under 468 nm excitation, is prepared by a solid-state reaction route. The microstructure and luminescent performance of this red-emitting phosphor are investigated in detail with the aids of X-ray diffraction refinement, diffuse reflection spectra, steady-state photoluminescence spectra, and temperature-dependent PL/decay measurements. The crystal field strength (Dq) and the Racah parameters (B and C) are carefully calculated to evaluate the nephelauxetic effect of Mn4+ suffering from the CMA host. After incorporating CMA: Mn4+ and YAG: Ce3+ phosphor microcrystals into glass host via a "phosphor-in-glass (PiG)" approach, warm white-light is achieved in the assembled high-powered w-LED device, thanking to the improved correlated color temperature and color rendering index.
Authors:
Bo Wang; Hang Lin; Ju Xu; Hui Chen; Yuansheng Wang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-11-27
Journal Detail:
Title:  ACS applied materials & interfaces     Volume:  -     ISSN:  1944-8252     ISO Abbreviation:  ACS Appl Mater Interfaces     Publication Date:  2014 Nov 
Date Detail:
Created Date:  2014-11-27     Completed Date:  -     Revised Date:  2014-11-28    
Medline Journal Info:
Nlm Unique ID:  101504991     Medline TA:  ACS Appl Mater Interfaces     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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