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Novel STM‐EC center for in situ imaging under potentiostatic/galvanostatic control: Electrodeposition of copper and cadmium on carbon substrates
Author(s) -
Yaniv Daphna R.,
McCormick Larry D.
Publication year - 1991
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140030206
Subject(s) - glassy carbon , highly oriented pyrolytic graphite , scanning tunneling microscope , electroplating , materials science , copper , graphite , electrochemistry , cyclic voltammetry , in situ , pyrolytic carbon , carbon fibers , analytical chemistry (journal) , nanotechnology , chemical engineering , electrode , chemistry , metallurgy , composite material , organic chemistry , layer (electronics) , pyrolysis , composite number , engineering
Abstract An electrochemical (EC) system, designed and incorporated into a scanning tunneling microscope (STM), is described. It has potentiostatic/galvanostatic capabilities for the sample and potentiostatic capabilities for the STM tip. The system permits imaging under potentiostatic (or galvanostatic) control. The STM‐EC center has been utilized to deposit metal films (Cu, Cd) on carbon substrates such as highly oriented pyrolytic graphite (HOPG) and glassy carbon (GC), and then used for in situ imaging under potentiostatic control. Tip‐induced electroplating on HOPG and its correlation to the bare graphite surface properties are also explored. Experimental considerations for in situ imaging under potentiostatic control are discussed.