Light Emission from Organic Molecules on Metal Substrates Induced by Tunneling Currents

• Guo X.-L.

  National Institute for Materials Science

• Dong Z.-C.

  National Institute for Materials Science

• Trifonov A. S.

  National Institute for Materials Science

• Yokoyama S.

  Communication Research Laboratory

• Mashiko S.

  Communication Research Laboratory

• Okamoto T.

  Institute of Physical and Chemical Research

Abstract

Tunneling currents in a scanning tunneling microscope were used to induce light emission by positioning either a gold-coated W tip on the surface of a porphyrin molecular monolayer on Cu(100) or a pure W tip on the surface of a perinone derivative monolayer on Au(100). The emission spectra from the surfaces of both molecules are dominated by the plasmon-mediated emission from substrates. Molecular fluorescence is completely quenched by the metal substrate. The organic molecules act as a spacer to modify the tip-induced plasmon modes, enhance the intensity of the plasmon-mediated emission, and cause blue shift of the spectra.

Journal

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 42 (11), 6937-6940, 2003

  The Japan Society of Applied Physics

Keywords

• tunneling current
• scanning tunneling microscopy
• light emission
• porphyrin
• perinone derivative
• metal substrate

Details

• CRID: 1390282681240952192
• NII Article ID: 210000054408
• NII Article ID: 10012564222
• NII Book ID: AA10457675
• DOI: 10.1143/jjap.42.6937
• ISSN: 13474065
• ISSN: 00214922
• ISSN: http://id.crossref.org/issn/13474065
• NDL BIB ID: 6752585
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6752585
• Web Site: http://stacks.iop.org/1347-4065/42/i=11R/a=6937/pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed