Imogolite as an electron emitter and a water sensor

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

doi:10.1007/s10854-007-9125-8

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Imogolite as an electron emitter and a water sensor

Oh, Jihoon;
Chang, Sunyoung;
Jang, Jiyoung;
Roh, Seungkwang;
Park, Jaehong;
... Sohn, Daewon;
... Yi, Whikun;
외 3명

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WEB OF SCIENCE

9

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SCOPUS

10

초록

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/mu m. 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.

키워드

FIELD-EMISSION; ALUMINUM SILICATE; CARBON; NANOTUBES; ARRAYS

제목: Imogolite as an electron emitter and a water sensor

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

DOI: 10.1007/s10854-007-9125-8

발행일: 2007-08

유형: Article

저널명: Journal of Materials Science: Materials in Electronics

권: 18

호: 8

페이지: 893 ~ 897