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Study of J-E Curve with Hysteresis of Carbon Nanotubes Field Emitters
Joint Authors
Kumar, Avshish
Parveen, Shama
Harsh,
Husain, Samina
Ali, Javid
Husain, Mushahid
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-08-16
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
We observe hysteresis in J-E plot during field emission measurement of CNTs grown by LPCVD technique.
CNTs are synthesized on Fe-coated Si substrate at 650°C.
SEM and Raman study confirm that CNTs are successfully grown on Si substrate by LPCVD technique.
In this study, we find that ramp-down curve has higher value of current density than ramp-up curve which indicates that CNTs show positive hysteresis.
Our results show that a high current density at low turn-on voltage is obtained in ramp-down step of J-E plot which may be since not all CNTs contribute in ramp-up step process.
But in ramp-down step all CNTs contribute as field emitters due to high electric field treatment.
We also performed stability analysis of CNTs with current at constant applied voltage for 5 hrs and find that the sample shows long-term stability due to increase in emitting site density since a large number of CNTs participate in field emission.
American Psychological Association (APA)
Parveen, Shama& Husain, Samina& Kumar, Avshish& Ali, Javid& Harsh, & Husain, Mushahid. 2012. Study of J-E Curve with Hysteresis of Carbon Nanotubes Field Emitters. ISRN Nanomaterials،Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-512494
Modern Language Association (MLA)
Parveen, Shama…[et al.]. Study of J-E Curve with Hysteresis of Carbon Nanotubes Field Emitters. ISRN Nanomaterials No. 2012 (2012), pp.1-5.
https://search.emarefa.net/detail/BIM-512494
American Medical Association (AMA)
Parveen, Shama& Husain, Samina& Kumar, Avshish& Ali, Javid& Harsh, & Husain, Mushahid. Study of J-E Curve with Hysteresis of Carbon Nanotubes Field Emitters. ISRN Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-512494
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-512494