Alternating Current Scanning Tunneling Spectroscopy of Self-Assembled Monolayers on Gold

S. J. Stranick, P. S. Weiss’, A. N. Parikh

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We demonstrate the spectroscopic capabilities of an ac scanning tunneling microscope. This ac scanning tunneling microscope has a bias voltage modulation frequency tunable over the range dc-20 GHz and is thus capable of recording images and local spectra of insulating as well as conducting substrates. In this article we detail the spectral sensitivity and the tip-sample separation dependence of the spectra recorded by simultaneously tuning the modulation and detection frequencies. Spectra of an evaporated gold film and of self-assembled monolayers of CH3(CH2)J5SH and of CH3O2C(CH2)j5SH on gold are presented.

Original languageEnglish (US)
Pages (from-to)739-741
Number of pages3
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume11
Issue number4
DOIs
StatePublished - 1993
Externally publishedYes

Fingerprint

Self assembled monolayers
Gold
alternating current
Microscopes
Image recording
Spectroscopy
gold
Scanning
scanning
Frequency modulation
Bias voltage
microscopes
spectroscopy
Tuning
Modulation
spectral sensitivity
frequency modulation
Substrates
recording
tuning

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

Alternating Current Scanning Tunneling Spectroscopy of Self-Assembled Monolayers on Gold. / Stranick, S. J.; Weiss’, P. S.; Parikh, A. N.

In: Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, Vol. 11, No. 4, 1993, p. 739-741.

Research output: Contribution to journalArticle

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