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Paper Abstract and Keywords
Presentation 2013-04-19 10:45
Enhanced thermoelectric performance of carbon nanotube by control of molecular scale junction using cage-shaped protein
Mitsuhiro Ito, Yasuyuki Tomatsu, Ryosuke Matsubara, Naofumi Okamoto, Ichiro Yamashita, Masakazu Nakamura (NAIST) ED2013-13 Link to ES Tech. Rep. Archives: ED2013-13
Abstract (in Japanese) (See Japanese page) 
(in English) Wide-area, low-cost, and mechanically flexible thermoelectric generators are strongly desired for the energy harvesting from the waste heat around our lives. Although, carbon nanotube (CNT) composites have advantages in respect of higher electrical conductivity and mechanical strength, they also have disadvantages in low Seebeck coefficient and high thermal conductivity, which limit the use of CNT composites as thermoelectric materials. Here, we propose a novel thermoelectric material design where core-shell-type particles are inserted at the junctions between CNT fibers to decrease thermal conductivity and increase Seebeck coefficient, simultaneously. In this work, we used a cage-shaped protein that selectively adsorb to CNTs as a model particle. By changing the inorganic particle included in the protein cage, the thermoelectric properties of nano-composite films were evaluated. Both Seebeck coefficient and electrical conductivity increased when p-type semiconducting particles were used. This result suggests that the increase of Seebeck coefficient of the nano-composite is due to the addition of local thermoelectricity at the junctions.
Keyword (in Japanese) (See Japanese page) 
(in English) thermoelectric conversion / CNT / protein / organic / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 9, ED2013-13, pp. 49-53, April 2013.
Paper # ED2013-13 
Date of Issue 2013-04-11 (ED) 
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 ED2013-13 Link to ES Tech. Rep. Archives: ED2013-13

Conference Information
Committee ED  
Conference Date 2013-04-18 - 2013-04-19 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Organic Devices, Oxide Devices, and others 
Paper Information
Registration To ED 
Conference Code 2013-04-ED 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Enhanced thermoelectric performance of carbon nanotube by control of molecular scale junction using cage-shaped protein 
Sub Title (in English)  
Keyword(1) thermoelectric conversion  
Keyword(2) CNT  
Keyword(3) protein  
Keyword(4) organic  
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1st Author's Name Mitsuhiro Ito  
1st Author's Affiliation Nara Institute of Science and Technology (NAIST)
2nd Author's Name Yasuyuki Tomatsu  
2nd Author's Affiliation Nara Institute of Science and Technology (NAIST)
3rd Author's Name Ryosuke Matsubara  
3rd Author's Affiliation Nara Institute of Science and Technology (NAIST)
4th Author's Name Naofumi Okamoto  
4th Author's Affiliation Nara Institute of Science and Technology (NAIST)
5th Author's Name Ichiro Yamashita  
5th Author's Affiliation Nara Institute of Science and Technology (NAIST)
6th Author's Name Masakazu Nakamura  
6th Author's Affiliation Nara Institute of Science and Technology (NAIST)
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Speaker
Date Time 2013-04-19 10:45:00 
Presentation Time 25 
Registration for ED 
Paper # IEICE-ED2013-13 
Volume (vol) IEICE-113 
Number (no) no.9 
Page pp.49-53 
#Pages IEICE-5 
Date of Issue IEICE-ED-2013-04-11 


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