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Paper Abstract and Keywords
Presentation 2018-02-28 13:50
[Invited Talk] Thermoelectric Properties of Semiconductor Thin Films
Hiromichi Ohta (Hokkaido Univ.) ED2017-109 SDM2017-109
Abstract (in Japanese) (See Japanese page) 
(in English) Themopower (≡Seebeck coefficient, S), which is a physical phenomenon that thermo-electromotive force is
generated between two ends of a metal or semiconductor by introducing a temperature difference in the material, is known as not only an important physical property for thermoelectric energy conversion but also a useful to understand electronic structures of materials since |S| strongly depends on the energy derivative of the electronic density of states at around the Fermi energy. In case of bulk system, the slope of log n vs. S relation should be –ln 10∙kB∙e−1 (≡ −198 μV K−1) since parabolic shaped E−k relation at around the conduction band minimum is generally observed. Further, an enhanced S can be observed by modifying the DOS in low-dimensional structures such as 2D quantum-wells and 1D nanowires. Here I review electric field modulated thermopower of several oxide-based transistors.
Keyword (in Japanese) (See Japanese page) 
(in English) Thermoelectric properties / Seebeck effect / 2D electron system / / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 453, ED2017-109, pp. 23-26, Feb. 2018.
Paper # ED2017-109 
Date of Issue 2018-02-21 (ED, SDM) 
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 ED2017-109 SDM2017-109

Conference Information
Committee ED SDM  
Conference Date 2018-02-28 - 2018-02-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Centennial Hall, Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Functional nanodevices and related technologies 
Paper Information
Registration To ED 
Conference Code 2018-02-ED-SDM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Thermoelectric Properties of Semiconductor Thin Films 
Sub Title (in English)  
Keyword(1) Thermoelectric properties  
Keyword(2) Seebeck effect  
Keyword(3) 2D electron system  
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1st Author's Name Hiromichi Ohta  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Speaker Author-1 
Date Time 2018-02-28 13:50:00 
Presentation Time 50 minutes 
Registration for ED 
Paper # ED2017-109, SDM2017-109 
Volume (vol) vol.117 
Number (no) no.453(ED), no.454(SDM) 
Page pp.23-26 
#Pages 4 
Date of Issue 2018-02-21 (ED, SDM) 

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