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; null Harsh; Robert Vajtai; Wongbong Choi; Krisztián Kordás; Pulickel M. Ajayan

doi:10.1021/nn500921s

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 journal › Article › peer-review

86 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 (E _to ∼ 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.

Original language	English
Pages (from-to)	7763-7770
Number of pages	8
Journal	ACS Nano
Volume	8
Issue number	8
DOIs	https://doi.org/10.1021/nn500921s
Publication status	Published - 26 Aug 2014
Externally published	Yes

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Copyright 2021 Elsevier B.V., All rights reserved.

All Science Journal Classification (ASJC) codes

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

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title = "Field emission with ultralow turn on voltage from metal decorated carbon nanotubes",

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 (E to ∼ 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.",

author = "Srividya Sridhar and Chandrasekhar Tiwary and Soumya Vinod and Taha-Tijerina, {Jose Jaime} and Srividvatha Sridhar and Kaushik Kalaga and Benjamin Sirota and Hart, {Amelia H.C.} and Sehmus Ozden and Sinha, {Ravindra Kumar} and Harsh and Robert Vajtai and Wongbong Choi and Kriszti{\'a}n Kord{\'a}s and Ajayan, {Pulickel M.}",

year = "2014",

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doi = "10.1021/nn500921s",

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AU - Sridhar, Srividya

AU - Tiwary, Chandrasekhar

AU - Vinod, Soumya

AU - Taha-Tijerina, Jose Jaime

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.

PY - 2014/8/26

Y1 - 2014/8/26

N2 - 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 (E to ∼ 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.

AB - 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 (E to ∼ 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.

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

Abstract

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All Science Journal Classification (ASJC) codes

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