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Paper Abstract and Keywords
Presentation 2014-11-28 11:25
Operation of deep UV LED using superlattice p-AlGaN hole-spreading contact layer
Noritoshi Maeda, Masafumi Jo, Hideki Hirayama (RIKEN) ED2014-88 CPM2014-145 LQE2014-116
Abstract (in Japanese) (See Japanese page) 
(in English) P-GaN free structure and highly-reflective p-type electrode are required for realizing high light-extraction efficiency (LEE) in UVC-LEDs. We demonstrated 280 nm AlGaN UVC-LEDs with superlattice (SL) p-AlGaN transparent hole-spreading contact layers that is necessary for highly-reflective Al electrode with dot-matrix Ni/Au-contacts. By using appropriate p-AlGaN/AlGaN SL structure, we obtained the lateral hole-spreading effects in the UVC-LEDs with 400×400μm2 Al-based dot-matrix reflective electrode, and demonstrated maximally 1.6 times LEE increase.
Keyword (in Japanese) (See Japanese page) 
(in English) AlGaN / LED / Deep UV / hole-spreading / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 338, LQE2014-116, pp. 73-76, Nov. 2014.
Paper # LQE2014-116 
Date of Issue 2014-11-20 (ED, CPM, LQE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
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 ED2014-88 CPM2014-145 LQE2014-116

Conference Information
Committee LQE ED CPM  
Conference Date 2014-11-27 - 2014-11-28 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To LQE 
Conference Code 2014-11-LQE-ED-CPM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Operation of deep UV LED using superlattice p-AlGaN hole-spreading contact layer 
Sub Title (in English)  
Keyword(1) AlGaN  
Keyword(2) LED  
Keyword(3) Deep UV  
Keyword(4) hole-spreading  
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Keyword(8)  
1st Author's Name Noritoshi Maeda  
1st Author's Affiliation The Institute of Physical and Chemical Reserch (RIKEN)
2nd Author's Name Masafumi Jo  
2nd Author's Affiliation The Institute of Physical and Chemical Reserch (RIKEN)
3rd Author's Name Hideki Hirayama  
3rd Author's Affiliation The Institute of Physical and Chemical Reserch (RIKEN)
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Speaker Author-1 
Date Time 2014-11-28 11:25:00 
Presentation Time 25 minutes 
Registration for LQE 
Paper # ED2014-88, CPM2014-145, LQE2014-116 
Volume (vol) vol.114 
Number (no) no.336(ED), no.337(CPM), no.338(LQE) 
Page pp.73-76 
#Pages 4 
Date of Issue 2014-11-20 (ED, CPM, LQE) 

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