Show simple item record

dc.contributor.authorKolekar, Sadhu
dc.contributor.authorPatole, Shashikant P.
dc.contributor.authorPatil, Sumati
dc.contributor.authorYoo, J.B.
dc.contributor.authorDharmadhikari, C.V.
dc.date.accessioned2017-05-17T07:41:40Z
dc.date.available2017-05-17T07:41:40Z
dc.date.issued2017-05-05
dc.identifier.citationKolekar S, Patole SP, Patil S, Yoo JB, Dharmadhikari CV (2017) Study of Thermal-Field Emission Properties and Investigation of Temperature dependent Noise in the Emission Current form vertical Carbon nanotube emitters. Surface Science. Available: http://dx.doi.org/10.1016/j.susc.2017.05.002.
dc.identifier.issn0039-6028
dc.identifier.doi10.1016/j.susc.2017.05.002
dc.identifier.urihttp://hdl.handle.net/10754/623648
dc.description.abstractWe have investigated temperature dependent field electron emission characteristics of vertical carbon nanotubes (CNTs). The generalized expression for electron emission from well defined cathode surface is given by Millikan and Lauritsen [1] for the combination of temperature and electric field effect. The same expression has been used to explain the electron emission characteristics from vertical CNT emitters. Furthermore, this has been applied to explain the electron emission for different temperatures ranging from room temperature to 1500 K. The real-time field electron emission images at room temperature and 1500 K are recorded by using Charge Coupled Device (CCD), in order to understand the effect of temperature on electron emission spots in image morphology (as indicated by ring like structures) and electron emission spot intensity of the emitters. Moreover, the field electron emission images can be used to calculate the total number of emitters per cm2 for electron emission. The calculated number of emitters per cm2 is 4.5x107 and, the actual number emitters per cm2 present for electron emission calculated from Atomic Force Microscopy (AFM) data is 1.2x1012. The measured Current-Voltage (I-V) characteristics obey the Folwer-Nordheim (F-N) type behavior. The fluctuations in the emission current are recorded at different temperatures and, temperature dependence of power spectral density obeys power law relation s(f)=I2/f2 with that of emission current and frequency.
dc.description.sponsorshipSK acknowledges UGC, Govt. of India and CSIR, Govt. of India for Research Fellowships.
dc.publisherElsevier BV
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S003960281630797X
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Surface Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Surface Science, [, , (2017-05-05)] DOI: 10.1016/j.susc.2017.05.002 . © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectVertical Carbon nanotubes
dc.subjectThermal-field emission
dc.subjectNoise in emission current etc
dc.titleStudy of Thermal-Field Emission Properties and Investigation of Temperature dependent Noise in the Emission Current form vertical Carbon nanotube emitters
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalSurface Science
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Physics, Savitribai Phule Pune University, Pune 411007, India
dc.contributor.institutionCatalysis Division, CSIR- National Chemical Laboratory, Pune 411008, India
dc.contributor.institutionDepartment of Physics, University of South Florida, Tampa, Florida, USA 33620-995.
dc.contributor.institutionSchool of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 440 746, Korea
dc.contributor.institutionIndian Institute of Science, Bangalore- 560012, India.
dc.contributor.institutionIndian Institute of Science, Education & Research, Pashan, Pune-411008, India.
kaust.personPatole, Shashikant P.
refterms.dateFOA2019-05-05T00:00:00Z
dc.date.published-online2017-05-05
dc.date.published-print2017-10


Files in this item

Thumbnail
Name:
1-s2.0-S003960281630797X-main.pdf
Size:
1.296Mb
Format:
PDF
Description:
Accepted Manuscript
Thumbnail
Name:
1-s2.0-S003960281630797X-fx1.jpg
Size:
47.91Kb
Format:
JPEG image
Description:
Graphical abstract

This item appears in the following Collection(s)

Show simple item record