利用石英管型微波等离子体化学气相沉积装置,在Si基板上制备了具有纳米针状结构的碳膜.场发射特性测试表明,纳米针状结构碳膜具有良好的场发射特性,阈值电场为2.2 V/μm,外加电场为9 V/μm时,电流密度达到65 mA/cm2.利用统计效应修改了Fowler-Nordheim (F-N) 模型,成功地解释了在低电场区域的场发射机理.但是利用修改的F-N模型,不能解释高电场区域的电流密度的饱和现象,这将有待于进一步研究.
参考文献
[1] | 姚远昭,吴裕功.新型碳纳米管场发射显示器自会聚阴极的计算机模拟[J].液晶与显示,2006,21(6):636-639. |
[2] | 顾伟,雷威,张晓兵.场发射显示器中双层基板结构的数值分析[J].液晶与显示,2006,21(4):330-335. |
[3] | Li J J,Gu C Z,Wang Q,et al.Field emission from high aspect ratio tubular carbon cones grown on gold wire[J].Appl.Phys.Lett.,2005,87(14):143107(1-3). |
[4] | Wang J Y,Teraji T,Ito T.Fabrication of wrinkled carbon nano-films with excellent field emission characteristics[J].Diamond Relat.Mater.,2005,14(11-12):2074-2077. |
[5] | Mao D S,Wang X,Liu X H,et al.Effect of annealing on electron field emission properties of hydrogen-free amorphous carbon films[J].Diamond Relat.Mater.,2000,9(11):1876-1880. |
[6] | Amaratunga G,Silva S R P.Field emission from a-C:H and a-C:H:N[J].J.Non-cryst.Solids,1996,198/200(Part 2):611-614. |
[7] | Gupta S,Weiner B R,Morell G.Role of sp2 C cluster size on the field emission properties of sulfur-incorporated nanocomposite carbon thin films[J].Appl.Phys.Lett.,2002,80(8):1471-1473. |
[8] | Shi X,Cheah L K,Tay B K,et al.Electron field emission from surface treated tetrahedral amorphous carbon films[J].Appl.Phys.Lett.,1999,74(6):833-835. |
[9] | Carey J D,Forrest R D,Khan R U A,et al.Influence of sp2 clusters on the field emission properties of amorphous carbon thin films[J].Appl.Phys.Lett.,2000,77(13):2000-2008. |
[10] | Cui J B,Robertson J,Milne W I.Improved electron emission from carbon film using a resistive layer[J].J.Appl.Phys.,2001,89(6):3490-3493. |
[11] | Zhang Y B,Lau S P,Huang L,et al.Carbon nanotubes synthesized by biased thermal chemical vapor deposition as an electron source in an x-ray tube[J].Appl.Phys.Lett.,2005,86(12):123115(1-3). |
[12] | Obraztsov A N,Zakhidov Al A,Volkov A P,et al.Non-classical electron field emission from carbon materials[J].Diamond Relat.Mater.,2003,12(3-7):446-449. |
[13] | Srivastava Sanjay K,Shukla A K,Vankar V D,et al.Growth,structure and field emission characteristics of petal like carbon nano-structured thin films[J].Thin Solid Films,2005,492(1-2):124-130. |
[14] | Wang W H,Lin Y T,Kuo C T.Nanofabrication and properties of the highly oriented carbon nanocones[J].Diamond Relat.Mater.,2005,14(3-7):907-912. |
[15] | Lee Y C,Pradhan D,Lin S J,et al.Effect of surface treatment on the electron field emission property of nano-diamond films[J].Diamond Relat.Mater.,2005,14(11-12):2055-2058. |
[16] | Tanemura M,Tanaka J,Itoh K,et al.Field electron emission from sputter-induced carbon nanofibers grown at room temperature[J].Appl.Phys.Lett.,2005,86(11):113107(1-3). |
[17] | Levine J D.Statistical analysis of field emitter emissivity:Application to flat displays[J].J.Vac.Sci.Technol.B,1995,13(2):553-557. |
[18] | Cui J B,Robertson J,Milne W I,Field emission site densities of nanostructured carbon films deposited by a cathodic arc[J].J.Appl.Phys.,2001,89(10):5707-5711. |
[19] | Bonard J M,St(o)ckli T,Maier F,et al.Field-Emission-Induced Luminescence from Carbon Nanotubes[J].Phys.Rev.Lett.,1998,81(7):1441-1444. |
[20] | Liu X,Zhu C,Li Y.Energy band structure effect of individual single-walled carbon nanotubes on field emission characteristics[J].Physica B,2004,344(1-4):243-248. |
[21] | Chen C W,Lee M H,Clark S J.Field penetration induced charge redistribution effects on the field emission properties of carbon nanotubes-a first-principle study[J].Appl.Surf.Sci.,2004,228(1-4):143-150. |
[22] | Zheng X,Chen G H,Li Z,et al.Quantum-mechanical investigation of field-emission mechanism of a micrometer-long single-walled carbon nanotube[J].Phys.Rev.Lett.,2004,92(10):106803(1-4). |
[23] | Child C D.Discharge from hot CAO.[J].Phy.Rev.,1911,32(5):492-511. |
[24] | Langmuir I.The effect of space charge and initial velocities on the potential distribution and thermionic current between parallel plane electrodes[J].Phy.Rev.,1921,21(4):419-435. |
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