Pulsed electromagnetic inductive plasma-enhanced chemical-vapor deposition of amorphous carbon films

Kenji Ebihara, Seiji Kanazawa, Yukihiko Yamagata, Sadao Maeda

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A pulsed electromagnetic inductive methane discharge process was developed to form amorphous carbon thin films. In order to estimate the methane plasma state in the pulsed plasma process, the time-resolved excitation temperature was measured by means of relative spectral intensity method. At the high electromagnetic compression phase the pulsed plasma has an excitation temperature of the same order (20 000-50 000 K) as in the conventional rf glow discharges. The deposited thin films are transparent in the IR and adhere well to room-temperature substrates. The optical energy gap and the electrical conductivity of the amorphous carbon films are investigated and compared with the amorphous carbon films prepared with rf glow plasma chemical vapor deposition. The optical gap is observed to decrease from 1.26 to 1.14 eV as the deposition temperature and the charging voltage increase. It is shown that dynamic pulsed plasma flows affect the phase transition from a diamondlike structure to a graphitic structure.

Original languageEnglish
Pages (from-to)1440-1445
Number of pages6
JournalJournal of Applied Physics
Volume64
Issue number3
DOIs
Publication statusPublished - Dec 1 1988
Externally publishedYes

Fingerprint

vapor deposition
electromagnetism
carbon
methane
magnetohydrodynamic flow
thin films
glow discharges
excitation
temperature
charging
luminescence
electrical resistivity
electric potential
room temperature
estimates

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Pulsed electromagnetic inductive plasma-enhanced chemical-vapor deposition of amorphous carbon films. / Ebihara, Kenji; Kanazawa, Seiji; Yamagata, Yukihiko; Maeda, Sadao.

In: Journal of Applied Physics, Vol. 64, No. 3, 01.12.1988, p. 1440-1445.

Research output: Contribution to journalArticle

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