STM-induced photon emission from self-assembled porphyrin molecules on a Cu(100) surface

W. Deng, D. Fujita, T. Ohgi, S. Yokoyama, K. Kamikado, S. Mashiko

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Photon emission from a self-assembled monolayer of Cu-tetra-[3,5-di-t-butylphenyl]porphyrin (TBPP) molecules on Cu(100) by inelastic tunneling was observed on a scanning tunneling microscopy (STM) system. The photon emission spectra and bias dependence of the photon intensity showed the existence of two radiative processes. The maximum quantum efficiency (QE) measured at sample bias voltage +4.5 V was ≅8.0×10-6 photons per tunneling electron.

Original languageEnglish
Pages (from-to)4995-5000
Number of pages6
JournalJournal of Chemical Physics
Volume117
Issue number10
DOIs
Publication statusPublished - Sep 8 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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