TITLE

Electrical and thermal properties of new pyrographite films based on a condensation polymer, polyoxadiazole

AUTHOR(S)
Yasujima, Hiroyuki; Murakami, Mutsuaki; Yoshimura, Susumu
PUB. DATE
September 1986
SOURCE
Applied Physics Letters;9/1/1986, Vol. 49 Issue 9, p499
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Magnetoresistance, Hall coefficient, and thermal diffusivity of new high-quality graphite films prepared by pyrolysis of a condensation polymer, poly( p-phenylene-1,3,4-oxadiazole) were measured. The total carrier density, mobility, and thermal conductivity were 1.6×1019 cm-3, 7400 cm2 V-1 s-1, and 11 W cm-1 K-1 for the graphite film annealed at 3000 °C, which are almost comparable to those of highest quality graphites known so far. Drastic changes in the electronic and thermal properties with the heat-treatment temperature were found and discussed in relation to the development of the high-quality graphite.
ACCESSION #
9820709

 

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