Vibrationally Resolved Fluorescence from Organic Molecules near Metal Surfaces in a Scanning Tunneling Microscope

Z. C. Dong, X. L. Guo, A. S. Trifonov, P. S. Dorozhkin, K. Miki, K. Kimura, Shiyoshi Yokoyama, S. Mashiko

Research output: Contribution to journalArticle

163 Citations (Scopus)

Abstract

Intrinsic molecular fluorescence from porphyrin molecules on Au(100) has been realized by using a nanoscale multimonolayer decoupling approach with nanoprobe excitation in the tunneling regime. The molecular origin of luminescence is established by the observed well-defined vibrationally resolved fluorescence spectra. The molecules fluoresce at low “turn-on” voltages for both bias polarities, suggesting an excitation mechanism via hot electron injection from either tip or substrate. The excited molecules decay radiatively through Franck-Condon [Formula presented] transitions.

Original languageEnglish
JournalPhysical Review Letters
Volume92
Issue number8
DOIs
Publication statusPublished - Jan 1 2004
Externally publishedYes

Fingerprint

metal surfaces
microscopes
fluorescence
scanning
molecules
hot electrons
porphyrins
decoupling
excitation
polarity
luminescence
injection
electric potential
decay

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Vibrationally Resolved Fluorescence from Organic Molecules near Metal Surfaces in a Scanning Tunneling Microscope. / Dong, Z. C.; Guo, X. L.; Trifonov, A. S.; Dorozhkin, P. S.; Miki, K.; Kimura, K.; Yokoyama, Shiyoshi; Mashiko, S.

In: Physical Review Letters, Vol. 92, No. 8, 01.01.2004.

Research output: Contribution to journalArticle

Dong, Z. C. ; Guo, X. L. ; Trifonov, A. S. ; Dorozhkin, P. S. ; Miki, K. ; Kimura, K. ; Yokoyama, Shiyoshi ; Mashiko, S. / Vibrationally Resolved Fluorescence from Organic Molecules near Metal Surfaces in a Scanning Tunneling Microscope. In: Physical Review Letters. 2004 ; Vol. 92, No. 8.
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