Stable Electron Field Emission from PMMA-CNT Matrices

被引：55

作者：

Pandey, Archana ^{[1
]}

Prasad, Abhishek ^{[1
]}

Moscatello, Jason P. ^{[1
]}

Yap, Yoke Khin ^{[1
]}

机构：

[1] Michigan Technol Univ, Dept Phys, Houghton, MI 49931 USA

来源：

ACS NANO | 2010年 / 4卷 / 11期

关键词：

carbon nanotubes; field emission; stability; Joule heating; screening effect; CARBON NANOTUBES;

D O I：

10.1021/nn100925g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have created PMMA-CNT matrices by embedding opened tip vertically aligned multiwalled carbon nanotubes (VA MWCNTs) with poly(methyl methacrylate) (PMMA) These PMMA-CNT matrices are excellent electron field emitters with an emission threshold field of 1 675 V/mu m, more than 2 fold lower that that of the as grown sample In addition, the emission site density from these matrices is high, merely filling up the entire sample surface Emission stability test at similar to 135 mA/cm(2) was performed continuously for 40 h with no significant degradation On the basis of our theoretical simulation and hypothetical modeling, we attribute these performances to the reduced screening effect and fewer Joule heatings due to the shorter effective transport distance of the electrons in MWCNTs

引用

页码：6760 / 6766

页数：7

共 50 条

[31] Field emission from carbon nanotubes and its application to electron sources [J].

Saito, Y ;

Uemura, S .

CARBON, 2000, 38 (02) :169-182

[32] Titanium buffer layer for improved field emission of CNT based cold cathode [J].

Srividya, S. ;

Gautam, S. ;

Jha, P. ;

Kumar, P. ;

Kumar, A. ;

Ojha, U. S. ;

Rawat, J. S. B. S. ;

Pal, S. ;

Chaudhary, P. K. ;

Harsh, B. ;

Sinha, R. K. .

APPLIED SURFACE SCIENCE, 2010, 256 (11) :3563-3566

[33] Field emission CNT-based electron focusing system for terahertz TWT [J].

Burtsev, A. A. ;

Bushuev, N. A. ;

Grigoriev, Yu A. ;

Danilushkin, A., V ;

Pavlov, A. A. ;

Kitsyuk, E. P. .

2017 EIGHTEENTH INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC), 2017,

[34] A novel mechanical approach to improve the field emission characteristics of printed CNT films [J].

Zeng, FG ;

Zhu, CC ;

Liu, XH ;

Liu, WH ;

Li, YK .

MATERIALS LETTERS, 2006, 60 (19) :2399-2402

[35] Field electron emission from nanotube carbon layers grown by CVD process [J].

Musatov, AL ;

Kiselev, NA ;

Zakharov, DN ;

Kukovitskii, EF ;

Zhbanov, AI ;

Izrael'yants, KR ;

Chirkova, EG .

APPLIED SURFACE SCIENCE, 2001, 183 (1-2) :111-119

[36] Field emission from individual multiwalled carbon nanotubes prepared in an electron microscope [J].

de Jonge, N ;

van Druten, NJ .

ULTRAMICROSCOPY, 2003, 95 (1-4) :85-91

[37] Extremely stable field emission from AlZnO nanowire arrays [J].

Xue, X. Y. ;

Li, L. M. ;

Yu, H. C. ;

Chen, Y. J. ;

Wang, Y. G. ;

Wang, T. H. .

APPLIED PHYSICS LETTERS, 2006, 89 (04)

[38] Investigation on field electron emission from carbon nanotubes on nanocrystalline diamond films [J].

Liao, KJ ;

Wang, WL ;

Cai, CZ ;

Lu, JW ;

Hu, CG .

Science and Technology of Nanomaterials - ICMAT 2003, 2005, 23 :35-38

[39] Stable electron field emission from graphene/hexagonal boron nitride hybrid structure [J].

Hong, X. D. ;

Zheng, H. R. ;

Liang, D. .

MATERIALS LETTERS, 2020, 277 (277)

[40] Theory of Field Electron Emission from Nanotextured Cathode [J].

Semeniuk, N. S. ;

Kozyrev, A. V. ;

Gorkovskaia, D. A. .

RUSSIAN PHYSICS JOURNAL, 2024, 67 (05) :653-659

← 1 2 3 4 5 →