Imogolite as an electron emitter and a water sensor

Jihoon Oh; Sunyoung Chang; Jiyoung Jang; Seungkwang Roh; Jaehong Park; Jungwoo Lee; Daewon Sohn; Whikun Yi; Yeongri Jung; Sung Jin Kim

doi:10.1007/s10854-007-9125-8

Imogolite as an electron emitter and a water sensor

Jihoon Oh, Sunyoung Chang, Jiyoung Jang, Seungkwang Roh, Jaehong Park, Jungwoo Lee, Daewon Sohn, Whikun Yi, Yeongri Jung, Sung Jin Kim

Department of Chemistry & Nanoscience

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

10 Scopus citations

Abstract

We investigated field emission (FE) properties of imogolite including the turn-on field and lifetime stability. Imogolite is an excellent electron emitter with a turn-on field of approximately 2.5-3.5 V/μm. A lifetime test revealed that imogolite protects itself during FE under exposure to O ₂ gas. We also measured the current-voltage characteristics of the imogolite as a function of the amount of water adsorbed on the surface. The results suggested that the electrode-containing imogolite device could be a useful water sensor in a nanoscale environment.

Original language	English
Pages (from-to)	893-897
Number of pages	5
Journal	Journal of Materials Science: Materials in Electronics
Volume	18
Issue number	8
DOIs	https://doi.org/10.1007/s10854-007-9125-8
State	Published - Aug 2007

Bibliographical note

Funding Information:
Acknowledgments This work was supported by the ‘‘Korean Science and Engineering Foundation’’ sponsoring ‘‘Advanced Basic Research Lab. R14-2003-014-01001-0’’, and ‘‘Basic Research Program, R01-2006-000-10396-0’’, and ‘‘Ministry of Education and Human Resources Development’’ sponsoring ‘‘The Second Stage of BK21’’.

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title = "Imogolite as an electron emitter and a water sensor",

abstract = "We investigated field emission (FE) properties of imogolite including the turn-on field and lifetime stability. Imogolite is an excellent electron emitter with a turn-on field of approximately 2.5-3.5 V/μm. A lifetime test revealed that imogolite protects itself during FE under exposure to O 2 gas. We also measured the current-voltage characteristics of the imogolite as a function of the amount of water adsorbed on the surface. The results suggested that the electrode-containing imogolite device could be a useful water sensor in a nanoscale environment.",

author = "Jihoon Oh and Sunyoung Chang and Jiyoung Jang and Seungkwang Roh and Jaehong Park and Jungwoo Lee and Daewon Sohn and Whikun Yi and Yeongri Jung and Kim, {Sung Jin}",

note = "Funding Information: Acknowledgments This work was supported by the {\textquoteleft}{\textquoteleft}Korean Science and Engineering Foundation{\textquoteright}{\textquoteright} sponsoring {\textquoteleft}{\textquoteleft}Advanced Basic Research Lab. R14-2003-014-01001-0{\textquoteright}{\textquoteright}, and {\textquoteleft}{\textquoteleft}Basic Research Program, R01-2006-000-10396-0{\textquoteright}{\textquoteright}, and {\textquoteleft}{\textquoteleft}Ministry of Education and Human Resources Development{\textquoteright}{\textquoteright} sponsoring {\textquoteleft}{\textquoteleft}The Second Stage of BK21{\textquoteright}{\textquoteright}.",

year = "2007",

month = aug,

doi = "10.1007/s10854-007-9125-8",

language = "English",

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pages = "893--897",

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TY - JOUR

T1 - Imogolite as an electron emitter and a water sensor

AU - Oh, Jihoon

AU - Chang, Sunyoung

AU - Jang, Jiyoung

AU - Roh, Seungkwang

AU - Park, Jaehong

AU - Lee, Jungwoo

AU - Sohn, Daewon

AU - Yi, Whikun

AU - Jung, Yeongri

AU - Kim, Sung Jin

N1 - Funding Information: Acknowledgments This work was supported by the ‘‘Korean Science and Engineering Foundation’’ sponsoring ‘‘Advanced Basic Research Lab. R14-2003-014-01001-0’’, and ‘‘Basic Research Program, R01-2006-000-10396-0’’, and ‘‘Ministry of Education and Human Resources Development’’ sponsoring ‘‘The Second Stage of BK21’’.

PY - 2007/8

Y1 - 2007/8

N2 - We investigated field emission (FE) properties of imogolite including the turn-on field and lifetime stability. Imogolite is an excellent electron emitter with a turn-on field of approximately 2.5-3.5 V/μm. A lifetime test revealed that imogolite protects itself during FE under exposure to O 2 gas. We also measured the current-voltage characteristics of the imogolite as a function of the amount of water adsorbed on the surface. The results suggested that the electrode-containing imogolite device could be a useful water sensor in a nanoscale environment.

AB - We investigated field emission (FE) properties of imogolite including the turn-on field and lifetime stability. Imogolite is an excellent electron emitter with a turn-on field of approximately 2.5-3.5 V/μm. A lifetime test revealed that imogolite protects itself during FE under exposure to O 2 gas. We also measured the current-voltage characteristics of the imogolite as a function of the amount of water adsorbed on the surface. The results suggested that the electrode-containing imogolite device could be a useful water sensor in a nanoscale environment.

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U2 - 10.1007/s10854-007-9125-8

DO - 10.1007/s10854-007-9125-8

M3 - Article

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SN - 0957-4522

VL - 18

SP - 893

EP - 897

JO - Journal of Materials Science: Materials in Electronics

JF - Journal of Materials Science: Materials in Electronics

IS - 8

ER -

Imogolite as an electron emitter and a water sensor

Abstract

Bibliographical note

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