Advanced Scanning Electrochemical Microscope System for High-Resolution imaging and Electrochemical Applications
نویسندگان
چکیده
منابع مشابه
Scanning Electrochemical Microscope
A scanning electrochemical microscope (SECM) was used as an analytical tool to study the etching of GaAs surfaces. Hole injection from several eledrogenerated oxidants to n-type, p-type, and undoped GaAs was examined by the feedback mode of the SECM. Assignment of the process as a hole injection from the oxidized form of the redox couple into the valence band and assignment of the energy of the...
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We have combined a novel low temperature positioning mechanism with a single-chip miniature superconducting quantum interference device ~SQUID! magnetometer to form an extremely sensitive new magnetic microscope, with a demonstrated spatial resolution of ;10 mm. The design and operation of this scanning SQUID microscope will be described. The absolute calibration of this instrument with an idea...
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Here we report on the unprecedentedly high resolution imaging of ion transport through single nanopores by scanning electrochemical microscopy (SECM). The quantitative SECM image of single nanopores allows for the determination of their structural properties, including their density, shape, and size, which are essential for understanding the permeability of the entire nanoporous membrane. Nanos...
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The design of a combined scanning electrochemical microscope-quartz crystal microbalance (SECM-QCM) with separate potential control of the tip and substrate is described. Both lateral and vertical tip movements near the substrate affect the QCM resonant frequency because of perturbations of the longitudinal and shear waves of the quartz crystal (QC) acoustic wave sensor. The SECM-QCM was used t...
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The first papers related to the scanning electrochemical microscopy (SECM) were published in the nineties of the 20th century [1, 2]. This technique is based on the scanning of the studied surface by ultramicroelectrode (UME) and electrochemical analysis of surface [1]. Such technique gives us an electrochemical picture of the surface. SECM employs an UME probe (tip) to induce chemical changes ...
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ژورنال
عنوان ژورنال: Electrochemistry
سال: 2017
ISSN: 1344-3542,2186-2451
DOI: 10.5796/electrochemistry.85.319