Improved field emission stability and uniformity of printed carbon nanotubes prepared using high energy-milled glass frit

Title
Improved field emission stability and uniformity of printed carbon nanotubes prepared using high energy-milled glass frit
Author(s)
윤당혁최영철[최영철]
Keywords
CHEMICAL-VAPOR-DEPOSITION; EMITTERS; ARRAYS; LENGTH; FILMS
Issue Date
201309
Publisher
ELSEVIER SCIENCE BV
Citation
CURRENT APPLIED PHYSICS, v.13, no.7, pp.1477 - 1481
Abstract
Stable and uniform electron field emitters were fabricated by the screen-printing of a carbon nanotube (CNT) paste. The CNT paste was prepared by mixing thin multi-walled CNTs, organic binder and glass frits in terpineol followed by three-roll milling. The paste was screen-printed onto an indium tin oxide (ITO)-coated glass substrate and exposed to firing. The emitters formed by the adhesive tape treatment of the printed pastes generally showed non-uniform heights of emitting tips due to the large-sized glass frit distributed in the paste. On the other hand, small glass frits with a uniform particle size distribution could be obtained by high energy milling. In addition, the CNT paste prepared using the high energy-milled glass frits showed very uniform tip heights. The uniform CNT tip height was found to play an important role in acquiring the long-term emission stability and uniformity of field emitters. (C) 2013 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/29014http://dx.doi.org/10.1016/j.cap.2013.05.001
ISSN
1567-1739
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공과대학 > 신소재공학부 > Articles
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