Parametrically Optimized Carbon Nanotube-Coated Cold Cathode Spindt Arrays
Here, we investigate, through parametrically optimized macroscale simulations, the field electron emission from arrays of carbon nanotube (CNT)-coated Spindts towards the development of an emerging class of novel vacuum electron devices. The present study builds on empirical data gleaned from our re...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-01-01
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| Series: | Nanomaterials |
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| Online Access: | http://www.mdpi.com/2079-4991/7/1/13 |
| _version_ | 1798043345826611200 |
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| author | Xuesong Yuan Matthew T. Cole Yu Zhang Jianqiang Wu William I. Milne Yang Yan |
| author_facet | Xuesong Yuan Matthew T. Cole Yu Zhang Jianqiang Wu William I. Milne Yang Yan |
| author_sort | Xuesong Yuan |
| collection | DOAJ |
| description | Here, we investigate, through parametrically optimized macroscale simulations, the field electron emission from arrays of carbon nanotube (CNT)-coated Spindts towards the development of an emerging class of novel vacuum electron devices. The present study builds on empirical data gleaned from our recent experimental findings on the room temperature electron emission from large area CNT electron sources. We determine the field emission current of the present microstructures directly using particle in cell (PIC) software and present a new CNT cold cathode array variant which has been geometrically optimized to provide maximal emission current density, with current densities of up to 11.5 A/cm2 at low operational electric fields of 5.0 V/μm. |
| first_indexed | 2024-04-11T22:47:50Z |
| format | Article |
| id | doaj.art-48efef57f0214c2bb035fa18a02851b5 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-04-11T22:47:50Z |
| publishDate | 2017-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-48efef57f0214c2bb035fa18a02851b52022-12-22T03:58:42ZengMDPI AGNanomaterials2079-49912017-01-01711310.3390/nano7010013nano7010013Parametrically Optimized Carbon Nanotube-Coated Cold Cathode Spindt ArraysXuesong Yuan0Matthew T. Cole1Yu Zhang2Jianqiang Wu3William I. Milne4Yang Yan5School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, ChinaElectrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge CB3 0FA, UKState Key Laboratory Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, ChinaElectrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge CB3 0FA, UKSchool of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, ChinaHere, we investigate, through parametrically optimized macroscale simulations, the field electron emission from arrays of carbon nanotube (CNT)-coated Spindts towards the development of an emerging class of novel vacuum electron devices. The present study builds on empirical data gleaned from our recent experimental findings on the room temperature electron emission from large area CNT electron sources. We determine the field emission current of the present microstructures directly using particle in cell (PIC) software and present a new CNT cold cathode array variant which has been geometrically optimized to provide maximal emission current density, with current densities of up to 11.5 A/cm2 at low operational electric fields of 5.0 V/μm.http://www.mdpi.com/2079-4991/7/1/13carbon nanotubecold cathodefield emissionelectron gun |
| spellingShingle | Xuesong Yuan Matthew T. Cole Yu Zhang Jianqiang Wu William I. Milne Yang Yan Parametrically Optimized Carbon Nanotube-Coated Cold Cathode Spindt Arrays Nanomaterials carbon nanotube cold cathode field emission electron gun |
| title | Parametrically Optimized Carbon Nanotube-Coated Cold Cathode Spindt Arrays |
| title_full | Parametrically Optimized Carbon Nanotube-Coated Cold Cathode Spindt Arrays |
| title_fullStr | Parametrically Optimized Carbon Nanotube-Coated Cold Cathode Spindt Arrays |
| title_full_unstemmed | Parametrically Optimized Carbon Nanotube-Coated Cold Cathode Spindt Arrays |
| title_short | Parametrically Optimized Carbon Nanotube-Coated Cold Cathode Spindt Arrays |
| title_sort | parametrically optimized carbon nanotube coated cold cathode spindt arrays |
| topic | carbon nanotube cold cathode field emission electron gun |
| url | http://www.mdpi.com/2079-4991/7/1/13 |
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