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Real‐time scanning tunnelling microscopy of surfaces under active electrochemical control
Author(s) -
Robinson R. S.
Publication year - 1988
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1988.tb01419.x
Subject(s) - quantum tunnelling , scanning tunneling microscope , electrochemistry , electrode , microscopy , microscope , electrochemical scanning tunneling microscope , electrolyte , materials science , optoelectronics , analytical chemistry (journal) , optics , nanotechnology , chemistry , physics , scanning tunneling spectroscopy , chromatography
SUMMARY A scanning tunnelling microscope has been designed which allows tunnelling microscopy to be performed in the presence of an externally applied electrochemical current. Separate, isolated electrodes were used for electrochemical control, and up to 1 mA was passed during real‐time, video‐rate, in situ STM observation of the surfaces, without interfering with the operation of the STM. The noise level of these STM images is only slightly higher than images taken with the electrochemical circuitry disconnected. Surfaces were observed during the formation of surface films in aqueous electrolytes.