Browsing by Author "Li, B. J."

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Improved field emission properties of thiolated multi-wall carbon nanotubes on a flexible carbon cloth substrate
(2007-10-03)
Chuang, F. T.
;
Chen, P. Y.
;
Cheng, T. C.
;
Chien, C. H.
;
Li, B. J.
In this paper we report the observation of enhanced field emission properties from thiolated multi-wall carbon nanotubes ( MWCNTs) produced by a simple and effective two- step chemical surface modification technique. This technique implements carboxylation and thiolation on the MWCNTs synthesized by microwave plasma chemical vapor deposition ( MPCVD) on the flexible carbon cloth substrate. The resulting thiolated MWCNTs were found to have a very low threshold field value of 1.25 V mu m(-1) and a rather high field enhancement factor of 1.93 x 10(4), which are crucial for applications in versatile vacuum microelectronics.