Chin. Phys. Lett.  2005, Vol. 22 Issue (3): 648-650    DOI:
Original Articles |
Simulation of Space Charge Effect in Field Emission from a Nanowire
PEI Yi;ZHANG Geng-Min
Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871
Cite this article:   
PEI Yi, ZHANG Geng-Min 2005 Chin. Phys. Lett. 22 648-650
Download: PDF(206KB)  
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract At present, field emission from nanowires (NWs) is under intense investigation. In experiments, the dependence of field emission current from an NW on applied voltage (I--V behavior) often deviates from
the Fowler--Nordheim (FN) theory. We simulate the role of the space charge effect in the I--V behaviour of an NW. We determine the threshold electric field, at which the space charge effect starts to manifest itself, under different NW work functions. Our simulation result has confirmed that space charge effect is one of the possible factors responsible for the nonlinearity of the FN plots of an NW at high fields. Furthermore, our calculation reveals that the threshold field is related to the NW work function in an almost linear manner.
Keywords: 61.46.+w      79.70.+q      85.45.Db     
Published: 01 March 2005
PACS:  61.46.+w  
  79.70.+q (Field emission, ionization, evaporation, and desorption)  
  85.45.Db (Field emitters and arrays, cold electron emitters)  
TRENDMD:   
URL:  
https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2005/V22/I3/0648
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
PEI Yi
ZHANG Geng-Min
Related articles from Frontiers Journals
[1] YANG Yan-Ning, ZHANG Zhi-Yong**, ZHANG Fu-Chun, DONG Jun-Tang, ZHAO Wu, ZHAI Chun-Xue, ZHANG Wei-Hu. The Field Emission Characteristics of Titanium-Doped Nano-Diamonds[J]. Chin. Phys. Lett., 2012, 29(1): 648-650
[2] WANG Yu-Hua**, LI Hui-Qing, LU Jian-Duo, WANG Ru-Wu . Optical Limiting Properties of Ag-Cu Metal Alloy Nanoparticles Analysis by using MATLAB[J]. Chin. Phys. Lett., 2011, 28(11): 648-650
[3] LI Li-Juan, ZHAO Ming-Wen, JI Yan-Ju, LI Feng, LIU Xiang-Dong. Energetic Evolution of Single-Crystalline ZnO Nanowires and Nanotubes[J]. Chin. Phys. Lett., 2010, 27(8): 648-650
[4] WANG Li-Jun, ZHU Yu-Zhuan, WANG Xiao-Ping, ZHANG Shi, LIU Xin-Xin, LI Huai-Hui, MEI Cui-Yu, LIU Xiao-Fei. Field Electron Emission from Caterpillar-Like Clavae Nano-Structure Carbon Thin Films[J]. Chin. Phys. Lett., 2010, 27(8): 648-650
[5] LI Zheng-Lin, DENG Shao-Zhi, XU Ning-Sheng, LIU Fei, CHEN Jun. Enhanced Field Emission from Large-Area Arrays of W18O49 Pencil-Like Nanostructure[J]. Chin. Phys. Lett., 2010, 27(6): 648-650
[6] JI Zhong-Hua, WU Ji-Zhou, MA Jie, FENG Zhi-Gang, ZHANG Lin-Jie, ZHAO Yan-Ting, WANG Li-Rong, XIAO Lian-Tuan, JIA Suo-Tang. Ionization Detection of Ultracold Ground State Cesium Molecules[J]. Chin. Phys. Lett., 2010, 27(5): 648-650
[7] WANG Ai-Jun, CHEN Sheng-Li, DONG Peng, ZHOU Qian, YUAN Gui-Mei, SU Gu-Cong. Self-Assembling of Colloidal Particles Dispersed in Mixture of Ethanol and Water at the Air-Liquid Interface of Colloidal Suspension at Room Temperature[J]. Chin. Phys. Lett., 2009, 26(8): 648-650
[8] WANG Tao, LI Rui-Shan, PAN Xiao-Jun, ZHANG Pei-Zeng, ZHOU Ming, SONGXi, XIE Er-Qing. Improvement of Field Emission Characteristics of Copper Nitride Films with Increasing Copper Content[J]. Chin. Phys. Lett., 2009, 26(6): 648-650
[9] ZHANG Zhi-Hua, HE Ming, DUAN Xiao-Feng. Optical Properties of Hexagonal and Cubic ZnS Nanoribbons: Experiment and Theory[J]. Chin. Phys. Lett., 2009, 26(6): 648-650
[10] ZHANG Yong-Zhe, WU Li-Hui, LIU Yan-Ping, XIE Er-Qing, YAN De, CHEN Jiang-Tao. Preparation of ZnO Nanospheres and Their Applications in Dye-Sensitized Solar Cells[J]. Chin. Phys. Lett., 2009, 26(3): 648-650
[11] ZHANG Yang, DIAO Da-Sheng. Enhanced Field Emission from Vertical ZnO Nanoneedles on Micropyramids[J]. Chin. Phys. Lett., 2009, 26(3): 648-650
[12] LI Jun, WANG Ru-Zhi, LAN Wei, ZHANG Xing-Wang, DUAN Zhi-Qiang, WANG Bo, YAN Hui. Enhancement of Field Emission Properties in La-Doped ZnO Films Prepared by Magnetron Sputtering[J]. Chin. Phys. Lett., 2008, 25(7): 648-650
[13] FENG Zhi-Gang, ZHANG Lin-Jie, ZHAO Jian-Ming, LI Chang-Yong, LI An-Ling, JIA Suo-Tang. Measurement of Ionization Threshold of Ultracold Cesium Rydberg Atoms in Static Electric Field[J]. Chin. Phys. Lett., 2008, 25(7): 648-650
[14] QIU Xue-Qiong, WU Hui-Xia, TONG Rui, QIAN Shi-Xiong, LIN Yang-Hui, CAI Rui-Fang. Optical Limiting Properties of Two Soluble Polymer/Multi-Walled Carbon Nanotube Composites[J]. Chin. Phys. Lett., 2008, 25(2): 648-650
[15] GAO Chang-Cheng, HUANG Shi-Hua, YOU Fang-Tian, KANG Kai, FENG Ying. Influence of Surface Quenching Effects on Luminescent Dynamics of ZnS:Mn2+ Nanocrystals[J]. Chin. Phys. Lett., 2008, 25(2): 648-650
Viewed
Full text


Abstract