Fabrication and field emission study of novel rod-shaped diamond-like carbon nanostructures

Deepak Varshney; Vladimir I. Makarov; Puja Saxena; Adolfo Gonzalez-Berrios; James F. Scott; Brad R. Weiner; Gerardo Morell

doi:10.1088/0957-4484/21/28/285301

Fabrication and field emission study of novel rod-shaped diamond-like carbon nanostructures

Deepak Varshney^*, Vladimir I. Makarov, Puja Saxena, Adolfo Gonzalez-Berrios, James F. Scott, Brad R. Weiner, Gerardo Morell

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Novel sp(3) rich diamond-like carbon nanorod films were fabricated by a hot filament chemical vapour deposition technique. The results are indicative of a bottom-up synthesis process, which results in a hierarchical structure that consists of microscale papillae comprising numerous nanorods. The papillae have diameters ranging from 2 to 4 mu m and the nanorods have diameters in the 35-45 nm range. A growth mechanism based on the vapour-liquid-solid mechanism is proposed that accounts for the morphological aspects at the microscale and nanoscale. Investigation of field emission properties of fabricated nanorods reveals a low turn-on field of about 4.9 V mu m(-1) at 1 nA and a high field-enhancement factor.

Original language	English
Article number	285301
Number of pages	7
Journal	Nanotechnology
Volume	21
Issue number	28
DOIs	https://doi.org/10.1088/0957-4484/21/28/285301
Publication status	Published - 16 Jul 2010

Keywords

CHEMICAL-VAPOR-DEPOSITION
ENERGY-LOSS SPECTROSCOPY
AMORPHOUS-CARBON
THIN-FILMS
NANOCRYSTALLINE DIAMOND
RAMAN-SPECTROSCOPY
ELECTRON
PLASMA
NANOTUBES
NITROGEN

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title = "Fabrication and field emission study of novel rod-shaped diamond-like carbon nanostructures",

abstract = "Novel sp(3) rich diamond-like carbon nanorod films were fabricated by a hot filament chemical vapour deposition technique. The results are indicative of a bottom-up synthesis process, which results in a hierarchical structure that consists of microscale papillae comprising numerous nanorods. The papillae have diameters ranging from 2 to 4 mu m and the nanorods have diameters in the 35-45 nm range. A growth mechanism based on the vapour-liquid-solid mechanism is proposed that accounts for the morphological aspects at the microscale and nanoscale. Investigation of field emission properties of fabricated nanorods reveals a low turn-on field of about 4.9 V mu m(-1) at 1 nA and a high field-enhancement factor.",

keywords = "CHEMICAL-VAPOR-DEPOSITION, ENERGY-LOSS SPECTROSCOPY, AMORPHOUS-CARBON, THIN-FILMS, NANOCRYSTALLINE DIAMOND, RAMAN-SPECTROSCOPY, ELECTRON, PLASMA, NANOTUBES, NITROGEN",

author = "Deepak Varshney and Makarov, {Vladimir I.} and Puja Saxena and Adolfo Gonzalez-Berrios and Scott, {James F.} and Weiner, {Brad R.} and Gerardo Morell",

year = "2010",

month = jul,

day = "16",

doi = "10.1088/0957-4484/21/28/285301",

language = "English",

volume = "21",

journal = "Nanotechnology",

issn = "0957-4484",

publisher = "IOP Publishing Ltd.",

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T1 - Fabrication and field emission study of novel rod-shaped diamond-like carbon nanostructures

AU - Varshney, Deepak

AU - Makarov, Vladimir I.

AU - Saxena, Puja

AU - Gonzalez-Berrios, Adolfo

AU - Scott, James F.

AU - Weiner, Brad R.

AU - Morell, Gerardo

PY - 2010/7/16

Y1 - 2010/7/16

N2 - Novel sp(3) rich diamond-like carbon nanorod films were fabricated by a hot filament chemical vapour deposition technique. The results are indicative of a bottom-up synthesis process, which results in a hierarchical structure that consists of microscale papillae comprising numerous nanorods. The papillae have diameters ranging from 2 to 4 mu m and the nanorods have diameters in the 35-45 nm range. A growth mechanism based on the vapour-liquid-solid mechanism is proposed that accounts for the morphological aspects at the microscale and nanoscale. Investigation of field emission properties of fabricated nanorods reveals a low turn-on field of about 4.9 V mu m(-1) at 1 nA and a high field-enhancement factor.

AB - Novel sp(3) rich diamond-like carbon nanorod films were fabricated by a hot filament chemical vapour deposition technique. The results are indicative of a bottom-up synthesis process, which results in a hierarchical structure that consists of microscale papillae comprising numerous nanorods. The papillae have diameters ranging from 2 to 4 mu m and the nanorods have diameters in the 35-45 nm range. A growth mechanism based on the vapour-liquid-solid mechanism is proposed that accounts for the morphological aspects at the microscale and nanoscale. Investigation of field emission properties of fabricated nanorods reveals a low turn-on field of about 4.9 V mu m(-1) at 1 nA and a high field-enhancement factor.

KW - CHEMICAL-VAPOR-DEPOSITION

KW - ENERGY-LOSS SPECTROSCOPY

KW - AMORPHOUS-CARBON

KW - THIN-FILMS

KW - NANOCRYSTALLINE DIAMOND

KW - RAMAN-SPECTROSCOPY

KW - ELECTRON

KW - PLASMA

KW - NANOTUBES

KW - NITROGEN

U2 - 10.1088/0957-4484/21/28/285301

DO - 10.1088/0957-4484/21/28/285301

M3 - Article

SN - 0957-4484

VL - 21

JO - Nanotechnology

JF - Nanotechnology

IS - 28

M1 - 285301

ER -

Fabrication and field emission study of novel rod-shaped diamond-like carbon nanostructures

Abstract

Keywords

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