Surface conductivity in methyl-monolayer/Si heterojunction structure in the presence of water

Daisuke Niwa, Hiroshi Fukunaga, Takayuki Homma, Tetsuya Osaka

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The heterojunction between Si(111) semiconductor and the well-ordered methyl monolayer was formed to investigate the channel conduction at the surface in the heterojunction structure. With the presence of water, the methyl monolayer/Si heterojunction structure showed switching action with a high trance-conductance of 2.8 × 10-3 A/V under the application of bias voltage, while without the presence of water, such a switching behavior was not observed. The methyl monolayer/Si heterojunction structure worked as a p-type mode with the presence of water at the modified surface.

Original languageEnglish
Pages (from-to)520-521
Number of pages2
JournalChemistry Letters
Issue number4
Publication statusPublished - 2005 Apr 5


ASJC Scopus subject areas

  • Chemistry(all)

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