Covalent attachment of chiral alkaloids onto silicon surfaces

H. Wang, H. L. Zhang, Y. Guo, F. Y. Qiao, Q. Y. Sun

Research output: Contribution to journalArticleResearchpeer-review


In this work, we report the covalent attachment of a chiral molecule onto a hydrogen-terminated Si(Si-H) surface by using an extremely mild approach. Cinchonine, a chiral alkaloid was self-assembled onto a Si-H surface via a photochemistry method at room temperature. The self-assembled monolayers (SAMs) obtained were characterized by means of ellipsometry, XPS and wettability studies. The film formation kinetics was monitored by ellipsometry and XPS, which indicated that a full monolayer was formed within 15 h. Contact angle titration data revealed that the surface of cinchonine underwent a transition around pH 10.

Original languageEnglish
Pages (from-to)e19-e22
Number of pages4
JournalCurrent Applied Physics
Issue numberSUPPL.1
Publication statusPublished - Apr 2007
Externally publishedYes


  • Alkaloids
  • Chirality
  • Self-assembled monolayers (SAMs)
  • Si-H surface

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