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Red-emitting manganese-doped aluminum nitride phosphor

TitleRed-emitting manganese-doped aluminum nitride phosphor
Publication TypeJournal Article
Year of Publication2016
AuthorsCherepy, NJ, Payne, SA, Harvey, NM, Aberg, D, Seeley, ZM, Holliday, KS, Tran, IC, Zhou, F, Martinez, HP, Demeyer, JM, Drobshoff, AD, Srivastava, AM, Camardello, SJ, Comanzo, HA, Schlagel, DL, Lograsso, TA
JournalOptical Materials
Date Published04
Type of ArticleArticle
ISBN Number0925-3467
Accession NumberWOS:000373866400003
Keywordsab-initio, aln, alnmn2+, Aluminum nitride, efficiency, emission, exchange, Lighting phosphor, luminescence, Manganese emission, Materials Science, metals, Nitride phosphor, optics, point-defects, Red phosphor, spectra

ts, and Mn2+ is assumed to be closely associated with this site. In contrast with some previous reports, we find that the highest quantum efficiency with 254 nm excitation (Q.E. = 0.86 +/- 0.14) is obtained in aluminum nitride with a low manganese doping level of 0.06 mol.%. The principal Mn2+ decay of 1.25 ms is assigned to non-interacting Mn sites, while additional components in the microsecond range appear with higher Mn doping, consistent with Mn clustering and resultant exchange coupling. Slower components are present in samples with low Mn doping, as well as strong afterglow, assigned to trapping on shallow traps followed by detrapping and subsequent trapping on Mn. (C) 2016 Elsevier B.V. All rights reserved.

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DMSE? Waiting on MK

Short TitleOpt. Mater.
Alternate JournalOpt. Mater.