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Paper Abstract and Keywords
Presentation 2009-10-23 10:25
Light emitting characteristics and degradation process of low molecular organic light-emitting diodes using highly-conductive polymer anode
Hidenori Shiroki (Kinki Univ.), Hirotake Kajii (Osaka Univ.), Kotaku Hayashi (Kinki Univ.), Yutaka Ohmori (Osaka Univ.) OME2009-41 Link to ES Tech. Rep. Archives: OME2009-41
Abstract (in Japanese) (See Japanese page) 
(in English) Low molecular organic light-emitting devices with highly-conducting polymer poly(3,4- etylenedioxythiophene)- polystyrenesulfonic acid (PEDOT:PSS) as anode were fabricated and investigated. The maximum Luminance of 9000 cd/m2 and maximum efficiency of 2.6 cd/A were obtained, but the emission wasn’t even across the light-emitting area. By fabricating methoxy-substituted 1,3,5-tris [4-(diphennylamino)phenyl]benzene (TDAPB) on the polymer anode by wet processing, the evenness of the light- emitting area and the device characteristics were improved because of the improvement of the roughness of the anode surface. For poly(2,7-(9,9-di-n-octylfluorene) -alt-(1,4-phenylene-((4-sec-butylphenyl)imino-1,4-phenylene)))(TFB) as a hole injection layer by wet processing the device characteristics were improved. The max luminance of 15000 cd/m2, the max efficiency of 4.4 cd/A wrer achieved. Especially, the device’s lifetime was markedly improved. The capacitance characteristics with degradation were measured. With degradation capacitance peaks of PEDOT or PEDOT/TFB device was decreased. But that of PEDOT/TFB device was increased.
Keyword (in Japanese) (See Japanese page) 
(in English) organic light-emitting diode / polymer anode / PEDOT:PSS / life time / TFB / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 251, OME2009-41, pp. 7-11, Oct. 2009.
Paper # OME2009-41 
Date of Issue 2009-10-16 (OME) 
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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF OME2009-41 Link to ES Tech. Rep. Archives: OME2009-41

Conference Information
Committee OME  
Conference Date 2009-10-23 - 2009-10-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Chuo-Denki-Club, ROOM 213 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Organic Materials and Others related to OME activity 
Paper Information
Registration To OME 
Conference Code 2009-10-OME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Light emitting characteristics and degradation process of low molecular organic light-emitting diodes using highly-conductive polymer anode 
Sub Title (in English)  
Keyword(1) organic light-emitting diode  
Keyword(2) polymer anode  
Keyword(3) PEDOT:PSS  
Keyword(4) life time  
Keyword(5) TFB  
1st Author's Name Hidenori Shiroki  
1st Author's Affiliation Kinki Uneversity (Kinki Univ.)
2nd Author's Name Hirotake Kajii  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Kotaku Hayashi  
3rd Author's Affiliation Kinki Uneversity (Kinki Univ.)
4th Author's Name Yutaka Ohmori  
4th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2009-10-23 10:25:00 
Presentation Time 25 minutes 
Registration for OME 
Paper # OME2009-41 
Volume (vol) vol.109 
Number (no) no.251 
Page pp.7-11 
Date of Issue 2009-10-16 (OME) 

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