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Paper Abstract and Keywords
Presentation 2011-12-15 10:45
Carrier transport in PEDOT:PSS studied by THz and IR-UV spectroscopy
Masatsugu Yamashita, Chiko Otani (RIKEN), Hidenori Okuzaki (Univ. Yamanashi) ED2011-111 Link to ES Tech. Rep. Archives: ED2011-111
Abstract (in Japanese) (See Japanese page) 
(in English) We are developing the nondestructive evaluation of carrier transport in conducting polymer. In this study, effect of the solvent such as ethylene glycol on the carrier transport in conducting polymer poly (3, 4 ethylenedioxythiophene):poly (3-stylene sulfonate) (PEDOT:PSS) has been investigated by the combination of the terahertz (THz) time domain spectroscopy and broadband reflectance spectroscopy from infrared to ultraviolet region. THz conductivity increases with increasing the frequency, which indicates that the weakly localized carrier states in PEDOT:PSS can be improved and broadband reflectance of PEDOT:PSS indicates that the carrier density changes by the addition of the ethylene glycole. From the study of the X-ray diffraction and X-ray photoemission spectroscopy, the EG addition improves the crystalline of PEDOT:PSS and induces the removal of the insulating PSS. These results indicate that the dc conductivity enhancement of the ethylene glycol is dominated by the improvement of the carrier mobility due to the change of the film structure.
Keyword (in Japanese) (See Japanese page) 
(in English) terahertz wave / conducting polymer / carrier transport / nondestructive evaluation / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 338, ED2011-111, pp. 63-67, Dec. 2011.
Paper # ED2011-111 
Date of Issue 2011-12-07 (ED) 
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 ED2011-111 Link to ES Tech. Rep. Archives: ED2011-111

Conference Information
Committee ED  
Conference Date 2011-12-14 - 2011-12-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Milimeter wave, terahertz device and systems 
Paper Information
Registration To ED 
Conference Code 2011-12-ED 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Carrier transport in PEDOT:PSS studied by THz and IR-UV spectroscopy 
Sub Title (in English)  
Keyword(1) terahertz wave  
Keyword(2) conducting polymer  
Keyword(3) carrier transport  
Keyword(4) nondestructive evaluation  
1st Author's Name Masatsugu Yamashita  
1st Author's Affiliation Institute of Physical and Chemical Research (RIKEN)
2nd Author's Name Chiko Otani  
2nd Author's Affiliation Institute of Physical and Chemical Research (RIKEN)
3rd Author's Name Hidenori Okuzaki  
3rd Author's Affiliation University of Yamanashi (Univ. Yamanashi)
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Speaker Author-1 
Date Time 2011-12-15 10:45:00 
Presentation Time 25 minutes 
Registration for ED 
Paper # ED2011-111 
Volume (vol) vol.111 
Number (no) no.338 
Page pp.63-67 
Date of Issue 2011-12-07 (ED) 

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