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Paper Abstract and Keywords
Presentation 2015-01-23 09:56
Eu3+-activated IIIa-O-VIIb-S(IIIa=La,Gd、VIIb=F,Cl)red phosphors
Yoji Kageyama, Masahiro Okada, Tadashi Ishigaki, Koutoku Ohmi (Tottori Univ.), Ryo Yoshimatsu (Denka) EID2014-49
Abstract (in Japanese) (See Japanese page) 
(in English) The control of the charge transfer state (CTS) has been attempted by combining anion elements for Eu activated oxidation fluoride sulfide-based matrix materials. It has been found that the valence ratio (Eu3+/Eu2+）is varied with varying the ionic – covalent degree of the host matrix. For the La3OF3S2:Eu phosphor having two kinds of La3+ sites, the absorption band is observed between 400 and 500 nm. The absorption is considered to be due to the CTS of Eu3+centers incorporated into the La3+ site with stronger covalent.
Keyword (in Japanese) (See Japanese page) 
(in English) charge transfer state (CTS) / La3OF3S2:Eu / covalent character / oxidation fluoride sulfide-based matrix / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 407, EID2014-49, pp. 75-78, Jan. 2015.
Paper # EID2014-49 
Date of Issue 2015-01-15 (EID) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EID2014-49

Conference Information
Committee EID ITE-IDY IEIJ-SSL IEE-EDD SID-JC  
Conference Date 2015-01-22 - 2015-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Ryukoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EID 
Conference Code 2015-01-EID-IDY-SSL-EDD-JC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Eu3+-activated IIIa-O-VIIb-S(IIIa=La,Gd、VIIb=F,Cl)red phosphors 
Sub Title (in English)  
Keyword(1) charge transfer state (CTS)  
Keyword(2) La3OF3S2:Eu  
Keyword(3) covalent character  
Keyword(4) oxidation fluoride sulfide-based matrix  
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Keyword(6)  
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1st Author's Name Yoji Kageyama  
1st Author's Affiliation Tottori University (Tottori Univ.)
2nd Author's Name Masahiro Okada  
2nd Author's Affiliation Tottori University (Tottori Univ.)
3rd Author's Name Tadashi Ishigaki  
3rd Author's Affiliation Tottori University (Tottori Univ.)
4th Author's Name Koutoku Ohmi  
4th Author's Affiliation Tottori University (Tottori Univ.)
5th Author's Name Ryo Yoshimatsu  
5th Author's Affiliation Denka Limited (Denka)
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Speaker Author-1 
Date Time 2015-01-23 09:56:00 
Presentation Time 8 minutes 
Registration for EID 
Paper # EID2014-49 
Volume (vol) vol.114 
Number (no) no.407 
Page pp.75-78 
#Pages 4 
Date of Issue 2015-01-15 (EID) 

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