Electrons Extraction from MWCNT/PEO Composites

Authors N. Benkara Mohammed1, 2 , R. Md Nor1, N. Benouattas3

1Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia

2Department of Sciences and Techniques, Faculty of Sciences and Technology, University of Mohamed Bachir El-Ibrahimi, Bordj-Bou-Arreridj 34000, Algeria

3Laboratory of Surfaces and Interfaces of Solid Materials, University of Mohamed El-Bachir El-Ibrahimi, Setif I 19000, Algeria

Е-mail [email protected]
Issue Volume 10, Year 2018, Number 4
Dates Received 14 March 2018; revised manuscript received 15 August 2018; published online 25 August 2018
Citation N. Benkara Mohammed, R. Md Nor, N. Benouattas, J. Nano- Electron. Phys. 10 No 4, 04006 (2018)
DOI http://dx.doi.org/10.21272/jnep.10(4).04006
PACS Number(s) 78.67.Sc
Keywords MWCNTs, PEO (2) , Nanomposites, Field electron emission (2) .

Electron field emission was investigated from multi-walled carbon nanotubes (MWCNT)/polyethylene oxide (PEO) composites with (5, 15, 25, 33, 40 and 50wt.% of MWCNTs). The resulted samples were characterized using Raman spectroscopy to estimate The MWCNTs-PEO (Nanotubes-Polymer) interaction through the shifting or width alteration of the peaks. The SEM micrographs were issued to investigate the surface morphology of the samples. In addition, and in order to gain additional understanding of the filler content and the samples thermal stability; the TGA technique was applied. The current density versus applied electric field J(E) and current stability of the prepared composites were measured using a range of voltages. Here, the 33wt.% composite displayed the lowest turn on field of 6.51V/µm, whereas the highest current density achieved was 1.17 mA/cm2 by the 40wt.% composite.

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