Carbon nanotube field emitters on KOVAR substrate modified by random pattern

Seol Ah Park; Eun Ho Song; Byung Hyun Kang; Byeong Kwon Ju

doi:10.1007/s11051-015-3120-4

Carbon nanotube field emitters on KOVAR substrate modified by random pattern

Seol Ah Park
, Eun Ho Song
, Byung Hyun Kang
, Byeong Kwon Ju^*

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

We investigated the field emission characteristics of patterned carbon nanotubes (CNTs) on KOVAR substrates with different surface morphologies. The substrate with a micro-sized random pattern was fabricated through chemical wet etching, whereas the substrate with a nano-sized random pattern was formed by surface roughening process of polymer and chemical wet etching. The field emission characteristics of these substrates were the compared with those of non-treated substrates. It was clearly revealed that the field emission characteristics of CNTs were influenced by the surface morphology of the cathode substrate. When the surface of cathode was modified by random pattern, the modified substrate provided a large surface area and a wider print area. Also, the modified surface morphology of the cathode provided strong adhesion between the CNT paste and the cathode. Particularly, the substrate with the nano-sized random pattern showed that the turn-on field value decreases and the field enhancement factor value improves as compared with non-treated substrate.

Original language	English
Article number	318
Journal	Journal of Nanoparticle Research
Volume	17
Issue number	7
DOIs	https://doi.org/10.1007/s11051-015-3120-4
Publication status	Published - 2015 Jul 25

Bibliographical note

Funding Information:
This work was supported by the Industrial Core Technology Development Program funded by the Ministry of Trade, industry, and Energy (No. 10037379, Development of Multi X-ray Source and Tomosynthesis System based on Nano Materials). The authors thank the staff of KBSI for technical assistance.

Publisher Copyright:
© 2015, Springer Science+Business Media Dordrecht.

Keywords

Few-walled carbon nanotubes
Field emission characteristics
KOVAR
Surface treatment

ASJC Scopus subject areas

Bioengineering
Atomic and Molecular Physics, and Optics
General Chemistry
Modelling and Simulation
General Materials Science
Condensed Matter Physics

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10.1007/s11051-015-3120-4

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title = "Carbon nanotube field emitters on KOVAR substrate modified by random pattern",

abstract = "We investigated the field emission characteristics of patterned carbon nanotubes (CNTs) on KOVAR substrates with different surface morphologies. The substrate with a micro-sized random pattern was fabricated through chemical wet etching, whereas the substrate with a nano-sized random pattern was formed by surface roughening process of polymer and chemical wet etching. The field emission characteristics of these substrates were the compared with those of non-treated substrates. It was clearly revealed that the field emission characteristics of CNTs were influenced by the surface morphology of the cathode substrate. When the surface of cathode was modified by random pattern, the modified substrate provided a large surface area and a wider print area. Also, the modified surface morphology of the cathode provided strong adhesion between the CNT paste and the cathode. Particularly, the substrate with the nano-sized random pattern showed that the turn-on field value decreases and the field enhancement factor value improves as compared with non-treated substrate.",

keywords = "Few-walled carbon nanotubes, Field emission characteristics, KOVAR, Surface treatment",

author = "Park, \{Seol Ah\} and Song, \{Eun Ho\} and Kang, \{Byung Hyun\} and Ju, \{Byeong Kwon\}",

note = "Funding Information: This work was supported by the Industrial Core Technology Development Program funded by the Ministry of Trade, industry, and Energy (No. 10037379, Development of Multi X-ray Source and Tomosynthesis System based on Nano Materials). The authors thank the staff of KBSI for technical assistance. Publisher Copyright: {\textcopyright} 2015, Springer Science+Business Media Dordrecht.",

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doi = "10.1007/s11051-015-3120-4",

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T1 - Carbon nanotube field emitters on KOVAR substrate modified by random pattern

AU - Park, Seol Ah

AU - Song, Eun Ho

AU - Kang, Byung Hyun

AU - Ju, Byeong Kwon

N1 - Funding Information: This work was supported by the Industrial Core Technology Development Program funded by the Ministry of Trade, industry, and Energy (No. 10037379, Development of Multi X-ray Source and Tomosynthesis System based on Nano Materials). The authors thank the staff of KBSI for technical assistance. Publisher Copyright: © 2015, Springer Science+Business Media Dordrecht.

PY - 2015/7/25

Y1 - 2015/7/25

N2 - We investigated the field emission characteristics of patterned carbon nanotubes (CNTs) on KOVAR substrates with different surface morphologies. The substrate with a micro-sized random pattern was fabricated through chemical wet etching, whereas the substrate with a nano-sized random pattern was formed by surface roughening process of polymer and chemical wet etching. The field emission characteristics of these substrates were the compared with those of non-treated substrates. It was clearly revealed that the field emission characteristics of CNTs were influenced by the surface morphology of the cathode substrate. When the surface of cathode was modified by random pattern, the modified substrate provided a large surface area and a wider print area. Also, the modified surface morphology of the cathode provided strong adhesion between the CNT paste and the cathode. Particularly, the substrate with the nano-sized random pattern showed that the turn-on field value decreases and the field enhancement factor value improves as compared with non-treated substrate.

AB - We investigated the field emission characteristics of patterned carbon nanotubes (CNTs) on KOVAR substrates with different surface morphologies. The substrate with a micro-sized random pattern was fabricated through chemical wet etching, whereas the substrate with a nano-sized random pattern was formed by surface roughening process of polymer and chemical wet etching. The field emission characteristics of these substrates were the compared with those of non-treated substrates. It was clearly revealed that the field emission characteristics of CNTs were influenced by the surface morphology of the cathode substrate. When the surface of cathode was modified by random pattern, the modified substrate provided a large surface area and a wider print area. Also, the modified surface morphology of the cathode provided strong adhesion between the CNT paste and the cathode. Particularly, the substrate with the nano-sized random pattern showed that the turn-on field value decreases and the field enhancement factor value improves as compared with non-treated substrate.

KW - Few-walled carbon nanotubes

KW - Field emission characteristics

KW - KOVAR

KW - Surface treatment

UR - https://www.scopus.com/pages/publications/84937834372

U2 - 10.1007/s11051-015-3120-4

DO - 10.1007/s11051-015-3120-4

M3 - Article

AN - SCOPUS:84937834372

SN - 1388-0764

VL - 17

JO - Journal of Nanoparticle Research

JF - Journal of Nanoparticle Research

IS - 7

M1 - 318

ER -

Carbon nanotube field emitters on KOVAR substrate modified by random pattern

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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