Field emission with ultralow turn on voltage from metal decorated carbon nanotubes

Srividya Sridhar, Chandrasekhar Tiwary, Soumya Vinod, Jose Jaime Taha-Tijerina, Srividvatha Sridhar, Kaushik Kalaga, Benjamin Sirota, Amelia H.C. Hart, Sehmus Ozden, Ravindra Kumar Sinha, Harsh, Robert Vajtai, Wongbong Choi, Krisztián Kordás, Pulickel M. Ajayan

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

A simple and scalable method of decorating 3D-carbon nanotube (CNT) forest with metal particles has been developed. The results observed in aluminum (Al) decorated CNTs and copper (Cu) decorated CNTs on silicon (Si) and Inconel are compared with undecorated samples. A significant improvement in the field emission characteristics of the cold cathode was observed with ultralow turn on voltage (Eto∼ 0.1 V/μm) due to decoration of CNTs with metal nanoparticles. Contact resistance between the CNTs and the substrate has also been reduced to a large extent, allowing us to get stable emission for longer duration without any current degradation, thereby providing a possibility of their use in vacuum microelectronic devices. © 2014 American Chemical Society.
Original languageEnglish
Pages (from-to)7763-7770
Number of pages8
JournalACS Nano
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes

Fingerprint

Carbon Nanotubes
Metal nanoparticles
Silicon
Contact resistance
Aluminum
Microelectronics
Field emission
Copper
field emission
Carbon nanotubes
Cathodes
Metals
carbon nanotubes
Vacuum
Degradation
Electric potential
electric potential
Substrates
metals
Inconel (trademark)

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Sridhar, S., Tiwary, C., Vinod, S., Taha-Tijerina, J. J., Sridhar, S., Kalaga, K., ... Ajayan, P. M. (2014). Field emission with ultralow turn on voltage from metal decorated carbon nanotubes. ACS Nano, 7763-7770. https://doi.org/10.1021/nn500921s
Sridhar, Srividya ; Tiwary, Chandrasekhar ; Vinod, Soumya ; Taha-Tijerina, Jose Jaime ; Sridhar, Srividvatha ; Kalaga, Kaushik ; Sirota, Benjamin ; Hart, Amelia H.C. ; Ozden, Sehmus ; Sinha, Ravindra Kumar ; Harsh ; Vajtai, Robert ; Choi, Wongbong ; Kordás, Krisztián ; Ajayan, Pulickel M. / Field emission with ultralow turn on voltage from metal decorated carbon nanotubes. In: ACS Nano. 2014 ; pp. 7763-7770.
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Sridhar, S, Tiwary, C, Vinod, S, Taha-Tijerina, JJ, Sridhar, S, Kalaga, K, Sirota, B, Hart, AHC, Ozden, S, Sinha, RK, Harsh, Vajtai, R, Choi, W, Kordás, K & Ajayan, PM 2014, 'Field emission with ultralow turn on voltage from metal decorated carbon nanotubes', ACS Nano, pp. 7763-7770. https://doi.org/10.1021/nn500921s

Field emission with ultralow turn on voltage from metal decorated carbon nanotubes. / Sridhar, Srividya; Tiwary, Chandrasekhar; Vinod, Soumya; Taha-Tijerina, Jose Jaime; Sridhar, Srividvatha; Kalaga, Kaushik; Sirota, Benjamin; Hart, Amelia H.C.; Ozden, Sehmus; Sinha, Ravindra Kumar; Harsh; Vajtai, Robert; Choi, Wongbong; Kordás, Krisztián; Ajayan, Pulickel M.

In: ACS Nano, 01.01.2014, p. 7763-7770.

Research output: Contribution to journalArticle

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AU - Sridhar, Srividya

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AU - Sridhar, Srividvatha

AU - Kalaga, Kaushik

AU - Sirota, Benjamin

AU - Hart, Amelia H.C.

AU - Ozden, Sehmus

AU - Sinha, Ravindra Kumar

AU - Harsh, null

AU - Vajtai, Robert

AU - Choi, Wongbong

AU - Kordás, Krisztián

AU - Ajayan, Pulickel M.

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