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Paper Abstract and Keywords
Presentation 2010-01-28 15:15
Improvement in excitation characteristics by Mg codoping in CuAlS2:Mn, Si red phosphor for near UV exitation
Kazuhito Ohashi (Tottori Univ.), Yoshinobu Miyamoto (Tottori Univ./TEDREC), Koutoku Ohmi (Tottori Univ.), Hisashi Yoshida (NEC lighting) Link to ES Tech. Rep. Archives: EID2009-62
Abstract (in Japanese) (See Japanese page) 
(in English) CuAlS2:Mn shows a pure red luminescence and has a relatively strong excitation band in the near-UV wavelength range. The phosphor also shows a slight temperature quenching, therefore it is expected as a proposing red phosphor for near-UV LED excitation. In this study, it has been found that photoluminescence (PL) intensity is significantly improved by Mg codoping, which is thought to act as both charge compensator for Mn2+ luminescent centers and relaxation of a lattice distortion induced by Mn incorporation into CuAlS2 lattice. Considering a charge compensation system, (Cu,Mg)(Al,Si)S2:Mn is a proper composition, in which about three times higher PL intensity has been obtained under near-UV excitation compared to only Si codoped CuAlS2:Mn.
Keyword (in Japanese) (See Japanese page) 
(in English) CuAlS2:Mn / white LEDs / red phosphor / near-uv excitation / Mg doping / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 404, EID2009-62, pp. 61-64, Jan. 2010.
Paper #  
Date of Issue 2010-01-21 (EID) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF Link to ES Tech. Rep. Archives: EID2009-62

Conference Information
Conference Date 2010-01-28 - 2010-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyusyu Univ. (Chikushi Campus) 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IEIJ-SSL 
Conference Code 2010-01-IDY-EID-OMD-EDD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement in excitation characteristics by Mg codoping in CuAlS2:Mn, Si red phosphor for near UV exitation 
Sub Title (in English)  
Keyword(1) CuAlS2:Mn  
Keyword(2) white LEDs  
Keyword(3) red phosphor  
Keyword(4) near-uv excitation  
Keyword(5) Mg doping  
1st Author's Name Kazuhito Ohashi  
1st Author's Affiliation Tottori University (Tottori Univ.)
2nd Author's Name Yoshinobu Miyamoto  
2nd Author's Affiliation Tottori University/TEDREC (Tottori Univ./TEDREC)
3rd Author's Name Koutoku Ohmi  
3rd Author's Affiliation Tottori University (Tottori Univ.)
4th Author's Name Hisashi Yoshida  
4th Author's Affiliation NEC lighting (NEC lighting)
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Date Time 2010-01-28 15:15:00 
Presentation Time 10 
Registration for IEIJ-SSL 
Paper # IEICE-EID2009-62 
Volume (vol) IEICE-109 
Number (no) no.404 
Page pp.61-64 
#Pages IEICE-4 
Date of Issue IEICE-EID-2010-01-21 

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