Graphite film prepared by pyrolysis of bacterial cellulose

Graphite film prepared by pyrolysis of bacterial cellulose

A new route of preparation of high quality of graphitized films has been demonstrated. Highly graphitized films with electrical conductivity as high as 6×103 S/cm have been prepared by pyrolysis of bacterial cellulose films at 2900 °C. These films can be well intercalated with acceptors and donors s...

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Veröffentlicht in:Journal of applied physics 1990-08, Vol.68 (4), p.1720-1725
Hauptverfasser: YOSHINO, K, MATSUOKA, R, NOGAMI, K, YAMANAKA, S, WATANABE, K, TAKAHASHI, M, HONMA, M
Format: Artikel
Sprache:eng
Schlagworte:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Growth from solid phases (including multiphase diffusion and recrystallization)
Materials science
Methods of crystal growth
physics of crystal growth
Physics
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Zusammenfassung:A new route of preparation of high quality of graphitized films has been demonstrated. Highly graphitized films with electrical conductivity as high as 6×103 S/cm have been prepared by pyrolysis of bacterial cellulose films at 2900 °C. These films can be well intercalated with acceptors and donors such as FeCl3 and K, resulting in the enhancement of conductivity. Temperature dependencies of thermoelectric power and electrical conductivity are similar to those of soft carbon.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.346600