热处理对纳米金刚石涂层场发射性能的影响

翟春雪; 张志勇; 王雪文; 赵武

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热处理对纳米金刚石涂层场发射性能的影响

论文 | 更新时间：2020-08-12

- 热处理对纳米金刚石涂层场发射性能的影响
- Influence of Thermal Annealing on Field Emission of Nano-diamond Coating
- 发光学报 2008年29卷第2期页码：387-392
- 作者机构：
  
  1. 西北大学, 光子学与光子技术研究所,陕西西安,710069
  2. 西北大学, 信息科学与技术学院,陕西西安,710127
  3. 中国科学院, 西安光学精密机械研究所,陕西西安,710119
- 作者简介：
- 基金信息：
  
  陕西省科技发展计划资助项目(2001K07-G4)()
- DOI：
  中图分类号： TN873.95;O462.4
- 纸质出版日期：2008-3-20，
  
  收稿日期：2007-8-25，
  
  修回日期：2007-11-15，
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翟春雪, 张志勇, 王雪文, 赵武. 热处理对纳米金刚石涂层场发射性能的影响[J]. 发光学报, 2008,29(2): 387-392

ZHAI Chun-xue, ZHANG Zhi-yong, WANG Xue-wen, ZHAO Wu. Influence of Thermal Annealing on Field Emission of Nano-diamond Coating[J]. Chinese Journal of Luminescence, 2008,29(2): 387-392
翟春雪, 张志勇, 王雪文, 赵武. 热处理对纳米金刚石涂层场发射性能的影响[J]. 发光学报, 2008,29(2): 387-392 DOI：

ZHAI Chun-xue, ZHANG Zhi-yong, WANG Xue-wen, ZHAO Wu. Influence of Thermal Annealing on Field Emission of Nano-diamond Coating[J]. Chinese Journal of Luminescence, 2008,29(2): 387-392 DOI：

摘要

用旋涂法在金属钛衬底上涂敷纳米金刚石

经过适当的热处理形成金刚石涂层与金属钛衬底的化学键合

即形成衬底与涂层之间的过渡层

从而为纳米金刚石颗粒提供电子

使其成为有效的发射体。用扫描电镜、原子力显微镜、X射线衍射和拉曼散射等手段分析了温度对键合效果以及场发射性能的影响

温度过高或过低都不利于提高纳米金刚石涂层的场发射性能

只有在700℃左右对样品进行热处理

才能得到较好的键合状态。改变涂膜时旋涂的次数以获得不同涂层厚度的样品

对其在700℃的相同温度下进行热处理

发现涂层过厚或过薄都不利于样品发射性能的提高。旋涂9次并于700℃热处理的样品具有较好的场发射性能

其发射阈值场强可达4.6V/μm

而15.3V/μm场强下的电流密度为59.7μA/cm

。

Abstract

The fabricating processes of diamond-based field emission cathode mainly include two modes:growing film and fabricating micro tips or micro-patterned emitters. Growing film is time-consuming and ineffective; micro pattern fabricating is cost-consuming and complicated. Both processes are not adapted to commercial application of large screen field emission displays. The third process was supposed in this paper:coating nano-diamond powders on titanium substrate by spin-coating method. Ohmic contact between diamond coating and Ti substrate could be formed after thermal annealing at proper temperature

which supplies electrons for nano-diamond particles located in coating surface and make them effective emitters. Atomic force microscopy(AFM)

scanning electron microscopy(SEM)

X-ray diffraction(XRD)and Raman spectroscopy were employed to study the influence of the annealing temperature on bonding effect and field emission properties. Thermal treatment at extreme low or high temperature is not benefit to improve the field emission properties of the samples

while the ones annealed at about 700℃ could gain better bonding state.The samples with different coating thickness were annealed at 700℃ to investigate the effect of the coating thickness on the field emission property. Taking the electron transport and diamond emitter number into considerations

neither the excessive thick nor thin coating is good for amelioration of the emission property. Annealed at 700℃

the sample with nine-layer coating presents better property. The threshold electric field of the sample is 4.6 V/μm

and the current density can reach to 59.7 μA/cm

at 15.3 V/μm.

关键词

纳米金刚石涂层金属钛衬底场发射热退火键合

Keywords

nano-diamond coatingtitanium substratefield emissionthermal annealingbonding

references

Gu C Z.Enhanced electron emission from diamond film deposited on pre-seeded Si substrate with nanosized diamond powder[J].Appl.Surface Science,2005,251(1-4):225-229.

Koinkar P M,Mahajan J R,Patil P P,et al.Field emission characteristics of chemical vapor deposited diamond thin films with SnO2 as overlayer on silicon[J].Thin Solid Films,2005,474(1-2):275-278.

Choi W B,Cuomo J J,Zhirnov V V,et al.Field emission from silicon and molybdenum tips coated with diamond powder by dielectrophoresis[J].Appl.Phys.Lett.,1996,68(5):720-722.

Tyler T,Zhirnov V V,Kvit A V,et al.Electron emission from diamond nanoparticles on metal tips[J].Appl.Phys.Lett.,2003,82(17):2904-2906.

Subramanian K,Kang W P,Davidson J L,et al.Geometrical field enhancement on micropatterned nanodiamond film for electron emissions[J].Diamond & Related Materials,2006,15(2-3):417-425.

Wang Z L,Wang Q,Li H J,et al.The field emission properties of high aspect ratio diamond nanocone arrays fabricated by focused ion beam milling[J].Science and Technology of Advanced Materials,2005,6(7):799-803.

Wang Lili,Sun Zhou,Chen Ting.Effect of CVD-carbon nanotubes growth temperature on field emission properties[J].Chin.J.Lumin.(发光学报),2006,27(1):123-128 (in Chinese).

Fan Zhiqin,Yan Shuxia,Yao Ning,et al.Effect of deposition conditions on field emission properties of carbon nanotubes films[J].Chin.J.Lumin.(发光学报),2006,27(1):129-133 (in Chinese).

Kang W P,Wisitsorat A,Davidon J L,et al.Effect of sp2 content and tip treatment on the field emission of micropatterned pyramidal diamond tips[J].J.Vac.Sci.Technol.B,1998,16(2):684-688.

Sun Z,Chen J S,Li Y J,et al.Phase transformation of diamond films during electron field emission[J].Appl.Sur.Sci.,2001,173(3-4):282-289.

Xu N S.Therotical study of the threshold field for field electron emission from amorphous diamond thin films[J].J.Vac.Sci.Technol.B,2001,19(3):1059-1063.

Tachibana T.Correlation of the electrical properties of metal contacts on diamond films with the chemical nature of the metal-diamond interface.Ⅱ.Titanium contacts:A carbide-forming metal[J].Phys.Rev.B,1992-Ⅱ45 (20):11975-11981.

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