Pulsed laser ablation synthesis of diamond molecules in supercritical fluids

Sho Nakahara, Sven Stauss, Hiroyuki Miyazoe, Tomoki Shizuno, Minoru Suzuki, Hiroshi Kataoka, Takehiko Sasaki, Kazuo Terashima

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Nanocarbon materials have been synthesized by pulsed laser ablation (532 nm; 52 J/cm2; 7 ns; 10Hz) of highly oriented pyrolytic graphite in adamantane-dissolved supercritical xenon at a temperature T = 290:2 K and pressure p = 5:86 MPa. Micro-Raman spectroscopy of the products revealed the presence of hydrocarbons possessing sp3 hybridized bonds also found in diamond structures. The synthesis of diamantane was confirmed by gas chromatography-mass spectrometry. The same measurements also indicate the possible synthesis of other diamondoids up to octamantane. Thus, laser ablation in supercritical fluids is proposed as one practical method of synthesizing diamondoids.

Original languageEnglish
Article number096201
JournalApplied Physics Express
Volume3
Issue number9
DOIs
Publication statusPublished - 2010 Sep 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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