Optimized Ablation Condition to Prepare Polyperinaphthalene Thin Films Using the Third Harmonic Wavelength of Nd:YAG Laser

Satoru Nishio, Chihiro Kanezawa, Hiroshi Fukumura

Research output: Contribution to journalConference articlepeer-review

Abstract

Ablation of mixture targets of perylenetetracarboxylic dianhydride (PTCDA) with cobalt powder is carried out using the third harmonic of a Nd: YAG laser to obtain thin films consisting of variety size of nanoparticles. FT-IR and Raman spectroscopic studies allow us to conclude that fragments without the anhydride groups of PTCDA and with better defined perylene skeleton are deposited on the substrates. Gradual increase of the electric conductivity with increasing substrate temperature during deposition suggests effective polymerization of the deposit to form polyperinaphthalene (PPN), one of low dimensional graphite family. Furthermore a Raman spectrum for each nanoparticle prepared by laser ablation at a fluence of 0.5 Jcm-2pulse-1 is successfully measured by the surface enhanced Raman spectroscopy (SERS) with a silicon tip for atomic force microscopy (AFM) coated with gold.

Original languageEnglish
Pages (from-to)34-37
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5063
DOIs
Publication statusPublished - 2003 Dec 1
EventFourth International Symposium on Laser Precision Microfabrication - Munich, Germany
Duration: 2003 Jun 212003 Jun 24

Keywords

  • Ablation
  • Atomic force microscopy
  • Low dimensional graphite family
  • Nanoparticles
  • Perylenetetracarboxylic dianhydride
  • Polyperinaphthalene
  • Surface enhanced Raman spectroscopy
  • The third harmonic of a Nd:YAG laser

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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