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Screen Printing of Carbon Nanotubes for Field Emission Displays

Published online by Cambridge University Press:  11 February 2011

Mann Yi ,
Hyuck Jung ,
Woo-Suk Seo ,
Jong-Won Park ,
Hyun-Tae Chun ,
Nam-Je Koh ,
Soo-Deok Han  and
Dong-Gu Lee
Mann Yi
Affiliation:
School of Advanced Materials & Systems Engineering, Kumoh National Institute of Technology, 188 Shinpyung-Dong, Gumi-City 730–701, Gyeongbuk, Korea.
Hyuck Jung
Affiliation:
School of Advanced Materials & Systems Engineering, Kumoh National Institute of Technology, 188 Shinpyung-Dong, Gumi-City 730–701, Gyeongbuk, Korea.
Woo-Suk Seo
Affiliation:
Device Research Lab., LG.PHILIPS Displays, 184 Gongdan 1-Dong, Gumi-City 730–030, Gyeongbuk, Korea.
Jong-Won Park
Affiliation:
Device Research Lab., LG.PHILIPS Displays, 184 Gongdan 1-Dong, Gumi-City 730–030, Gyeongbuk, Korea.
Hyun-Tae Chun
Affiliation:
Device Research Lab., LG.PHILIPS Displays, 184 Gongdan 1-Dong, Gumi-City 730–030, Gyeongbuk, Korea.
Nam-Je Koh
Affiliation:
Device Research Lab., LG.PHILIPS Displays, 184 Gongdan 1-Dong, Gumi-City 730–030, Gyeongbuk, Korea.
Soo-Deok Han
Affiliation:
Device Research Lab., LG.PHILIPS Displays, 184 Gongdan 1-Dong, Gumi-City 730–030, Gyeongbuk, Korea.
Dong-Gu Lee
Affiliation:
School of Advanced Materials & Systems Engineering, Kumoh National Institute of Technology, 188 Shinpyung-Dong, Gumi-City 730–701, Gyeongbuk, Korea.
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Abstract

Carbon nanotubes (CNTs) have been significantly used for the field emitters for display applications. It is necessary to investigate the process variables affecting the screen printing of carbon nanotubes for the fabrication of good-quality field emitter devices with uniformity. Screen printing techniques have some advantages such as the short processing time and lower processing cost. The carbon nanotube pastes for screen printing are normally composed of organic binders, carbon nanotubes, and some additive materials. In this study, the carbon nanotube emitters for field emission displays were fabricated with different processing variables such as paste viscosity, paste composition, screen mesh, etc. The CNT pastes were printed on Cr-coated/Ag-printed soda-lime glass substrates. As a result, the processing variables were optimized for the good screen printing. From the I-V characteristics, the turn-on field of single-walled nanotubes was lower than that of multi-walled nanotubes. The decrease in the mesh number of screen masks resulted in decreasing the turn-on field and increasing the electron emission current due to the higher density and vertical alignment of printed-CNTs.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 750: Symposium Y – Surface Engineering 2002–Synthesis, Characterization and Applications , 2002 , Y5.47
Copyright
Copyright © Materials Research Society 2003

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References

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