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Electrochemical fabrication and study of polymer-modified STM tips

✍ Scribed by G.A. Tsirlina; O.A. Petrii; S.Yu. Vassiliev

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
336 KB
Volume
41
Category
Article
ISSN
0013-4686

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✦ Synopsis

A method was developed for fabricating the tips with double tunneling (DTT) which is based on the successive electrodeposition of polyaniline films and Cu or Tl,O, clusters on a Pt-lr-tip-ultramicroelectrode (UME). Specific features of Cu crystallization and STM behaviour of modified tips demonstrate continuity of the polymer film. The presence of junctions metal/insulator/metal (semiconductor) at the end of the prepared tip is also proved by STM experiments.

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## Abstract We have used scanning tunnelling microscopy (STM) to study the surface topography of several materials in the nanometre range. In order to solve some problems of STM, we have integrated it with a conventional scanning electron microscopy (SEM). The aim of this paper is to analyse critic