Triode-type field emission array using carbon nanotubes and a conducting polymer composite prepared by electrochemical polymerization.

Authors :: Jin, Y. W.
Jung, J. E.
Park, Y. J.
Choi, J. H.
Jung, D. S.
Lee, H. W.
Park, S. H.
Lee, N. S.
Kim, J. M.
Ko, T. Y.
Lee, S. J.
Hwang, S. Y.
You, J. H.
Yoo, Ji-Beom
Park, Chong-Yun
Source :: Journal of Applied Physics; 7/15/2002, Vol. 92 Issue 2, p1065, 4p, 3 Black and White Photographs, 1 Diagram, 3 Graphs
Publication Year :: 2002
Abstract: We report a method to fabricate carbon nanotubes (CNT)/conducting polymer composite films for the application of CNTs to field emission displays. The composite was prepared by a combination of electrochemical polymerization of pyrrole and electrophoretic deposition of CNTs. We obtained a uniform CNT/conducting polypyrrole polymer composite film. The CNTs were mainly coated on protrusions of the polypyrrole film and emitted electrons without rubbing and stretching. We realized a triode-type field emission array (FEA) using the CNT/polypyrrol composite. This FEA showed that the emission current was modulated by gate voltage of 30 V. The film morphology and emission characteristics of the CNT/conducting polymer composite were studied using optical microscopy, scanning electron microscopy, and an emission test in vacuum. [ABSTRACT FROM AUTHOR]

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