Field emission characteristics of metal-coated nanocrystalline diamond films

K. Ota, Y. Kaneko, K. Terada, Yoshimine Kato, Kungen Tsutsui

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

Effect of thin metal coatings in nanoscale on field emission characteristics of nitrogen-incorporated nanocrystalline diamond films is examined with different metal species and thicknesses. The films show minimal change in surface morphology by coating a thin layer of Ag, Au, and In and consist of fine grains with sizes ranging from 10 to 20 nm depending upon the metal species and thickness. While the emission turn-on field is increased slightly to 3.6 Vμm −1 with very small thicknesses of the metals, it is decreased toward 2.5 Vμm −1 typical of a non-coated film with increasing thickness of the metals up to a few nm. The field enhancement factor related to the surface morphology of the films gives stronger effects on emission performance than the effective barrier height related to the work function of the metals. The Ag-coated film shows higher emission current stability than the non-coated film for duration up to 13 h.

元の言語英語
ページ(範囲)P369-P373
ジャーナルECS Journal of Solid State Science and Technology
7
発行部数8
DOI
出版物ステータス出版済み - 1 1 2018

Fingerprint

Diamond films
Field emission
Metals
Surface morphology
Metal coatings
Nitrogen
Coatings

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

これを引用

Field emission characteristics of metal-coated nanocrystalline diamond films. / Ota, K.; Kaneko, Y.; Terada, K.; Kato, Yoshimine; Tsutsui, Kungen.

:: ECS Journal of Solid State Science and Technology, 巻 7, 番号 8, 01.01.2018, p. P369-P373.

研究成果: ジャーナルへの寄稿記事

@article{6b04b5ca76964d8c8c2b34358f13debd,
title = "Field emission characteristics of metal-coated nanocrystalline diamond films",
abstract = "Effect of thin metal coatings in nanoscale on field emission characteristics of nitrogen-incorporated nanocrystalline diamond films is examined with different metal species and thicknesses. The films show minimal change in surface morphology by coating a thin layer of Ag, Au, and In and consist of fine grains with sizes ranging from 10 to 20 nm depending upon the metal species and thickness. While the emission turn-on field is increased slightly to 3.6 Vμm −1 with very small thicknesses of the metals, it is decreased toward 2.5 Vμm −1 typical of a non-coated film with increasing thickness of the metals up to a few nm. The field enhancement factor related to the surface morphology of the films gives stronger effects on emission performance than the effective barrier height related to the work function of the metals. The Ag-coated film shows higher emission current stability than the non-coated film for duration up to 13 h.",
author = "K. Ota and Y. Kaneko and K. Terada and Yoshimine Kato and Kungen Tsutsui",
year = "2018",
month = "1",
day = "1",
doi = "10.1149/2.0091808jss",
language = "English",
volume = "7",
pages = "P369--P373",
journal = "ECS Journal of Solid State Science and Technology",
issn = "2162-8769",
publisher = "Electrochemical Society, Inc.",
number = "8",

}

TY - JOUR

T1 - Field emission characteristics of metal-coated nanocrystalline diamond films

AU - Ota, K.

AU - Kaneko, Y.

AU - Terada, K.

AU - Kato, Yoshimine

AU - Tsutsui, Kungen

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Effect of thin metal coatings in nanoscale on field emission characteristics of nitrogen-incorporated nanocrystalline diamond films is examined with different metal species and thicknesses. The films show minimal change in surface morphology by coating a thin layer of Ag, Au, and In and consist of fine grains with sizes ranging from 10 to 20 nm depending upon the metal species and thickness. While the emission turn-on field is increased slightly to 3.6 Vμm −1 with very small thicknesses of the metals, it is decreased toward 2.5 Vμm −1 typical of a non-coated film with increasing thickness of the metals up to a few nm. The field enhancement factor related to the surface morphology of the films gives stronger effects on emission performance than the effective barrier height related to the work function of the metals. The Ag-coated film shows higher emission current stability than the non-coated film for duration up to 13 h.

AB - Effect of thin metal coatings in nanoscale on field emission characteristics of nitrogen-incorporated nanocrystalline diamond films is examined with different metal species and thicknesses. The films show minimal change in surface morphology by coating a thin layer of Ag, Au, and In and consist of fine grains with sizes ranging from 10 to 20 nm depending upon the metal species and thickness. While the emission turn-on field is increased slightly to 3.6 Vμm −1 with very small thicknesses of the metals, it is decreased toward 2.5 Vμm −1 typical of a non-coated film with increasing thickness of the metals up to a few nm. The field enhancement factor related to the surface morphology of the films gives stronger effects on emission performance than the effective barrier height related to the work function of the metals. The Ag-coated film shows higher emission current stability than the non-coated film for duration up to 13 h.

UR - http://www.scopus.com/inward/record.url?scp=85059950850&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85059950850&partnerID=8YFLogxK

U2 - 10.1149/2.0091808jss

DO - 10.1149/2.0091808jss

M3 - Article

AN - SCOPUS:85059950850

VL - 7

SP - P369-P373

JO - ECS Journal of Solid State Science and Technology

JF - ECS Journal of Solid State Science and Technology

SN - 2162-8769

IS - 8

ER -