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Paper Abstract and Keywords
Presentation 2016-10-25 15:45
Ab initio calculations of field emission from carbon emitters on the basis of time-dependent density functional theory (II)
Toshiharu Higuchi, Masahiro Sasaki, Yoichi Yamada (Univ. of Tsukuba) ED2016-48 Link to ES Tech. Rep. Archives: ED2016-48
Abstract (in Japanese) (See Japanese page) 
(in English) To clarify the origin of the superior field emission characteristics of carbon emitters, we have estimated the emission current by ab initio simulations. We adopted the time-dependent density functional theory (TD-DFT) method for calculating the field emission from carbon nanotubes (CNTs) and hydrogen-terminated carbon nanotubes (H-CNTs). The previously raised problem that the slope of F-N plots is too small can be solved by using the trapezoidal electric field. Emission current from H-CNT calculated by TD-DFT is 5 times larger than that from CNT. However the emission current from H-CNT calculated by the Fowler-Nordheim equation is 18 times larger than CNT. We discuss the difference in obtained results.
Keyword (in Japanese) (See Japanese page) 
(in English) Field Emission / Work Function / ab initio Simulation / First Principle Calculation / Time-dependent Density Functional Theory / Carbon Emitter / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 268, ED2016-48, pp. 21-26, Oct. 2016.
Paper # ED2016-48 
Date of Issue 2016-10-18 (ED) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Download PDF ED2016-48 Link to ES Tech. Rep. Archives: ED2016-48

Conference Information
Committee ED  
Conference Date 2016-10-25 - 2016-10-26 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To ED 
Conference Code 2016-10-ED 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Ab initio calculations of field emission from carbon emitters on the basis of time-dependent density functional theory (II) 
Sub Title (in English)  
Keyword(1) Field Emission  
Keyword(2) Work Function  
Keyword(3) ab initio Simulation  
Keyword(4) First Principle Calculation  
Keyword(5) Time-dependent Density Functional Theory  
Keyword(6) Carbon Emitter  
1st Author's Name Toshiharu Higuchi  
1st Author's Affiliation * (*)
2nd Author's Name Masahiro Sasaki  
2nd Author's Affiliation Univ. of Tsukuba (Univ. of Tsukuba)
3rd Author's Name Yoichi Yamada  
3rd Author's Affiliation Univ. of Tsukuba (Univ. of Tsukuba)
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Date Time 2016-10-25 15:45:00 
Presentation Time 25 
Registration for ED 
Paper # IEICE-ED2016-48 
Volume (vol) IEICE-116 
Number (no) no.268 
Page pp.21-26 
#Pages IEICE-6 
Date of Issue IEICE-ED-2016-10-18 

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