Self-Assembled Growth, Microstructure, and Field-Emission High-Performance of Ultrathin Diamond Nanorods

NG Shang, P Papakonstantinou, P Wang, A Zakharov, U Palnitkar, IN Lin, M Chu, A Stamboulis

Research output: Contribution to journalArticle

99 Citations (Scopus)

Abstract

We report the growth of ultrathin diamond nanorods (DNRs) by a microwave plasma assisted chemical vapor deposition method using a mixture gas of nitrogen and methane. DNRs have a diameter as thin as 2.1 nm, which is not only smaller than reported one-dimensional diamond nanostructures (4-300 nm) but also smaller than the theoretical value for energetically stable DNRs. The ultrathin DNR is encapsulated in tapered carbon nanotubes (CNTs) with an orientation relation of (111)(diamond)//(0002)(graphite). Together with diamond nanoclusters and multilayer graphene nanowires/nano-onions, DNRs are self-assembled into isolated electron-emitting spherules and exhibit a low-threshold, high current-density (flat panel display threshold: 10 mA/cm(2) at 2.9 V/mu m) field emission performance, better than that of all other conventional (Mo and Si tips, etc.) and popular nanostructural (ZnO nanostructure and nanodiamond, etc.) field emitters except for oriented CNTs. The forming mechanism of DNRs is suggested based on a heterogeneous self-catalytic vapor-solid process. This novel DNRs-based integrated nanostructure has not only a theoretical significance but also has a potential for use as low-power cold cathodes.
LanguageEnglish
Pages1032-1038
JournalACS Nano
Volume3
Issue number4
DOIs
Publication statusPublished - Apr 2009

Fingerprint

Diamond
Nanorods
Field emission
nanorods
field emission
Diamonds
diamonds
microstructure
Microstructure
Nanostructures
Carbon Nanotubes
Graphite
Carbon nanotubes
carbon nanotubes
spherules
Nanodiamonds
Flat panel displays
cold cathodes
flat panel displays
thresholds

Keywords

  • diamond nanorods
  • carbon nanotube
  • aberration-corrected TEM
  • HAADF
  • PEEM
  • NEXAFS
  • field emission

Cite this

Shang, NG ; Papakonstantinou, P ; Wang, P ; Zakharov, A ; Palnitkar, U ; Lin, IN ; Chu, M ; Stamboulis, A. / Self-Assembled Growth, Microstructure, and Field-Emission High-Performance of Ultrathin Diamond Nanorods. In: ACS Nano. 2009 ; Vol. 3, No. 4. pp. 1032-1038.
@article{85e6e51061394e07bb4ecec774e922f0,
title = "Self-Assembled Growth, Microstructure, and Field-Emission High-Performance of Ultrathin Diamond Nanorods",
abstract = "We report the growth of ultrathin diamond nanorods (DNRs) by a microwave plasma assisted chemical vapor deposition method using a mixture gas of nitrogen and methane. DNRs have a diameter as thin as 2.1 nm, which is not only smaller than reported one-dimensional diamond nanostructures (4-300 nm) but also smaller than the theoretical value for energetically stable DNRs. The ultrathin DNR is encapsulated in tapered carbon nanotubes (CNTs) with an orientation relation of (111)(diamond)//(0002)(graphite). Together with diamond nanoclusters and multilayer graphene nanowires/nano-onions, DNRs are self-assembled into isolated electron-emitting spherules and exhibit a low-threshold, high current-density (flat panel display threshold: 10 mA/cm(2) at 2.9 V/mu m) field emission performance, better than that of all other conventional (Mo and Si tips, etc.) and popular nanostructural (ZnO nanostructure and nanodiamond, etc.) field emitters except for oriented CNTs. The forming mechanism of DNRs is suggested based on a heterogeneous self-catalytic vapor-solid process. This novel DNRs-based integrated nanostructure has not only a theoretical significance but also has a potential for use as low-power cold cathodes.",
keywords = "diamond nanorods, carbon nanotube, aberration-corrected TEM, HAADF, PEEM, NEXAFS, field emission",
author = "NG Shang and P Papakonstantinou and P Wang and A Zakharov and U Palnitkar and IN Lin and M Chu and A Stamboulis",
year = "2009",
month = "4",
doi = "10.1021/nn900167p",
language = "English",
volume = "3",
pages = "1032--1038",
journal = "ACS Nano",
issn = "1936-0851",
number = "4",

}

Shang, NG, Papakonstantinou, P, Wang, P, Zakharov, A, Palnitkar, U, Lin, IN, Chu, M & Stamboulis, A 2009, 'Self-Assembled Growth, Microstructure, and Field-Emission High-Performance of Ultrathin Diamond Nanorods', ACS Nano, vol. 3, no. 4, pp. 1032-1038. https://doi.org/10.1021/nn900167p

Self-Assembled Growth, Microstructure, and Field-Emission High-Performance of Ultrathin Diamond Nanorods. / Shang, NG; Papakonstantinou, P; Wang, P; Zakharov, A; Palnitkar, U; Lin, IN; Chu, M; Stamboulis, A.

In: ACS Nano, Vol. 3, No. 4, 04.2009, p. 1032-1038.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Self-Assembled Growth, Microstructure, and Field-Emission High-Performance of Ultrathin Diamond Nanorods

AU - Shang, NG

AU - Papakonstantinou, P

AU - Wang, P

AU - Zakharov, A

AU - Palnitkar, U

AU - Lin, IN

AU - Chu, M

AU - Stamboulis, A

PY - 2009/4

Y1 - 2009/4

N2 - We report the growth of ultrathin diamond nanorods (DNRs) by a microwave plasma assisted chemical vapor deposition method using a mixture gas of nitrogen and methane. DNRs have a diameter as thin as 2.1 nm, which is not only smaller than reported one-dimensional diamond nanostructures (4-300 nm) but also smaller than the theoretical value for energetically stable DNRs. The ultrathin DNR is encapsulated in tapered carbon nanotubes (CNTs) with an orientation relation of (111)(diamond)//(0002)(graphite). Together with diamond nanoclusters and multilayer graphene nanowires/nano-onions, DNRs are self-assembled into isolated electron-emitting spherules and exhibit a low-threshold, high current-density (flat panel display threshold: 10 mA/cm(2) at 2.9 V/mu m) field emission performance, better than that of all other conventional (Mo and Si tips, etc.) and popular nanostructural (ZnO nanostructure and nanodiamond, etc.) field emitters except for oriented CNTs. The forming mechanism of DNRs is suggested based on a heterogeneous self-catalytic vapor-solid process. This novel DNRs-based integrated nanostructure has not only a theoretical significance but also has a potential for use as low-power cold cathodes.

AB - We report the growth of ultrathin diamond nanorods (DNRs) by a microwave plasma assisted chemical vapor deposition method using a mixture gas of nitrogen and methane. DNRs have a diameter as thin as 2.1 nm, which is not only smaller than reported one-dimensional diamond nanostructures (4-300 nm) but also smaller than the theoretical value for energetically stable DNRs. The ultrathin DNR is encapsulated in tapered carbon nanotubes (CNTs) with an orientation relation of (111)(diamond)//(0002)(graphite). Together with diamond nanoclusters and multilayer graphene nanowires/nano-onions, DNRs are self-assembled into isolated electron-emitting spherules and exhibit a low-threshold, high current-density (flat panel display threshold: 10 mA/cm(2) at 2.9 V/mu m) field emission performance, better than that of all other conventional (Mo and Si tips, etc.) and popular nanostructural (ZnO nanostructure and nanodiamond, etc.) field emitters except for oriented CNTs. The forming mechanism of DNRs is suggested based on a heterogeneous self-catalytic vapor-solid process. This novel DNRs-based integrated nanostructure has not only a theoretical significance but also has a potential for use as low-power cold cathodes.

KW - diamond nanorods

KW - carbon nanotube

KW - aberration-corrected TEM

KW - HAADF

KW - PEEM

KW - NEXAFS

KW - field emission

U2 - 10.1021/nn900167p

DO - 10.1021/nn900167p

M3 - Article

VL - 3

SP - 1032

EP - 1038

JO - ACS Nano

T2 - ACS Nano

JF - ACS Nano

SN - 1936-0851

IS - 4

ER -