[KSCI] Korea Science Citation Index Service

Field Emission Enhancement by Electric Field Activation in Screen-printed Carbon Nanotube Film

Lee, Hyeon-Jae (Display and Nano System Lab., College of Engineering, Korea Universty)
Lee, Yang-Doo (Display and Nano System Lab., College of Engineering, Korea Universty)
Cho, Woo-Sung (Display and Nano System Lab., College of Engineering, Korea Universty)
Kim, Jai-Kyeong (Korea Institute of Science and Technology)
Hwang, Sung-Woo (Department of Electronics and Computer Engineering, Korea Universty)
Ju, Byeong-Kwon (Display and Nano System Lab., College of Engineering, Korea Universty)

Publication Information

Journal of Information Display / v.6, no.4, 2005 , pp. 45-48 More about this Journal

Abstract

By applying a critical field treatment instead of the conventional surface treatments such as soft rubber roller, ion beam irradiation, adhesive taping, and laser irradiation, electron emission properties of screen-printed carbon nanotubes (CNTs) were enhanced and investigated based on the emission current-voltage characteristics through scanning electron microscopy. After nanotube emitters were activated at the applied electric-field of 2.5 V/um, the electron emission current density with good uniform emission sites reached the value of 2.13 mA/ $cm^2$ , which is 400 times higher than that of the untreated sample, and the turn-on voltage decreased markedly from 700 to 460 V. In addition, enhancement of the alignment of CNTs to the vertical direction was observed.

Keywords

carbon nanotube; surface treatment; field-emission; screen-printing;

Citations & Related Records

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