Scanning tunneling microscopy: a natural for electrochemistry - реферат по английскому языку

 

Тезисы:

  • The basic principles of scanning tunneling microscopy are simple.
  • In means, that electron tunneling can also occur in electrolytes.
  • The tunneling current is the function of the gap between the tip and the surface.
  • The feedback system applies voltage pulses to the Z part to keep the tunneling current constant.
  • Electrolytes, though ionic conductors, are insulators as far as electron flow is concerned.
  • The whole system is controlled with a special computer program.
  • STM is capable of giving images that appear to be simply topographs of surfaces.
  • There has been a tendency to simplification of STMs since the time of their initial development.
  • The first one is vibration isolation.
  • The second point is STM’s ability to aquire images rapidly.
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