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大电流碳纳米管场发射阴极研究 被引量：13

Study on large current field-emission carbon nanotube cathode
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摘要 报道了在较大发射面积上获得较大场发射电流的碳纳米管场发射阴极。为了加强场发射电流,在丝网印刷浆料中增加一种金属纳米颗粒,金属颗粒增强了碳纳米管发射体和衬底的接触,提高碳纳米管和衬底的粘附作用。利用改进后的丝网印刷方法制备了大电流碳纳米管场发射阴极,测得最大发射电流为68.0mA,阴极有效发射面积约1.1mm2,发射电流密度约6.2A/cm2;并成功将改进方法制备的大电流场发射碳纳米管阴极应用于场发射真空器件原型。实验证明这种具有较大发射电流和较大发射电流密度的场发射能够满足部分大功率电子器件的需求。 A large current and a high emission current density from printed carbon nanotube （CNT） are reported. To enhance the field-emission current, a small number of metal nano-particles were added to the CNT paste. The metal nano-particles enhanced the emitters-substrate contact and improved the CNT’s adhesion properties. A large current of 68.0 mA is obtained from a cathode area of 1.1 mm2, and the high emission current density is about 6.2 A/cm2. The CNT cathode is applied to field-emission vacuum device prototype successfully. Experiments show that current and current density can meet the requirements for large current field-emission electron devices.
作者 崔云康 张晓兵 雷威 王琦龙 狄云松 李驰 陈静
机构地区 南京工程学院数理部 东南大学电子科学与工程学院
出处 《强激光与粒子束》 EI CAS CSCD 北大核心 2013年第6期1509-1512,共4页 High Power Laser and Particle Beams
基金 国家自然科学基金项目(51120125001 60971017 61101023) 江苏省高校自然科学基础研究项目(12KJB510004) 南京工程学院校级科研基金项目(CKJ2010013 YKJ201112 ZKJ201204 CKJA201207)
关键词 场发射 碳纳米管 发射阴极 电流密度 field emission, carbon nanotube, emitting cathode, current density
分类号 O462.4 [理学—电子物理学]
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参考文献20

  • 1Iijima S. Helical microtubules of graphitie carbon[J]. Nature, 1991, 354(3):56-58.
  • 2Rinzler A G, Hafner J H, Nilolaev P, et al. Unraveling nanotubes: field emission from an atomic wire[J]. Science, 1995, 269(5230) : 1550- 1553.
  • 3Heer W A D, Chatelain A, Ugarte D. A carbon nanotube field-emission electron source[J]. Science, 1995, 270(5239): 1179-1180.
  • 4Saito S. Carbon nanotubes for next-generation electronics devices[J]. Science, 1997, 278(5335) :77-78.
  • 5Jonge N D, Lamy Y, Schoots K, et al. High brightness electron beam from a multi-walled carbon nanotube[J]. Nature, 2002, 420:393-395.
  • 6Whaley D R, Gannon B M, Heinen V O, et al. Experimental demonstration of an emission-gated traveling-wave tube amplifier[J]. IEEE Trans on Plasma Sci, 2002, 30:998-1008.
  • 7Saito Y, Hata K, Takakura A, et al. Field emission of carbon nanotubes and its application as electron sources of ultra-high luminance light-source devices[J]. Physica B, 2002, 30:323-326.
  • 8Wei Y, Jiang K L, Liu L, et al. Needle-shaped ends of multiwalled carbon nanotube yarns and their field emission applications[J]. Nano Letters, 2007, 7(12) : 3792-3797.
  • 9Bai X, Wang M S, Zhang G G, et al. Field emission of individual carbon nanotubes on tungsten tips[J]. J Vac Sci Tech B, 2007, 25(2) : 561-565.
  • 10Liu N, Fang G, Zeng W, et al. Diminish the screen effect in field emission via patterned and selective edge growth of ZnO nanorod arrays[J]. Appl Phys Lett, 2009, 95 : 153505.

二级参考文献16

  • 1Frank S,Poncharal P,Wang Z L,et al.Carbon nanotube quantum resistors[J].Science,1998,280(5370):1744-1746.
  • 2Dai H J.Carbon nanotubes synthesis integration and properties[J].Accounts of Chemical Research,2002,35(2):1035-1044.
  • 3Mauger M,Binh V T,Levesque A,et al.Freestanding vertically aligned arrays of individual carbon nanotubes on metallic substrates for field emission cathodes[J].Appl Phys Lett,2004,85(2):305-307.
  • 4Duesberg G S,Graham A P,Liebau M,et al.Growth of isolated carbon nanotubes with lithographically defined diameter and location[J].Nano Letters,2003,32:257-259.
  • 5Jo S H,Tu Y,Huang Z P,et al.Effect of length and spacing of vertically aligned carbon nanotubes on field emission properties[J].Appl Phys Letters,2003,82(20):3520-3522.
  • 6Bower C,Zhu W,Jin S.Plasma induced alignment of carbon nanotubes[J].Appl Phys Lett,2000,77(6):830-832.
  • 7Wang Y Y,Gupta S,Nemanich R J.Role of thin Fe catalyst in the synthesis of double-and single-wall carbon nanotubes viamicrowave chemical vapor deposition[J].Appl Phys Lett,2004,85:2601-2603.
  • 8Fan S,Chapline M G,Franklin N R,et al.Self-oriented regular arrays of carbon nanotubes and their field emission properties[J].Science,1999,283(1540):512-514.
  • 9Stig H,Carlos L'opez-Cartes,Jens S,et al.Atomic-scale imaging of carbon nanofibre growth[J].Nature,2004,427(6973):426-429.
  • 10Niels D J,Bonard J M.Carbon nanotube electron sources and applications[J].Phil Trans R Soc Lond A,2004,362:2239-2266.

共引文献9

同被引文献138

引证文献13

二级引证文献34

强激光与粒子束
2013年 第6期

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