Stable electron field emission from PMMA-CNT Matrices
Document Type
Article
Publication Date
10-18-2010
Department
Department of Physics
Abstract
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/μm, 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 ∼1.35 mA/cm2 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.
Publication Title
ACS Nano
Recommended Citation
Pandey, A.,
Prasad, A.,
Moscatello, J. P.,
&
Yap, Y. K.
(2010).
Stable electron field emission from PMMA-CNT Matrices.
ACS Nano,
4(11), 6760-6766.
http://doi.org/10.1021/nn100925g
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/55
Publisher's Statement
© 2010 American Chemical Society. Publisher's version of record: https://doi.org/10.1021/nn100925g