Identification of Allylamine and Allylalcohol Adsorbate on Hydrogen-terminated Si(111)

Autor: Yamada, Taro, Yokomori, Ryo, Shirasaka, Kaoru, Kato, Hiroyuki S., Kawai, Maki
Zdroj: ECS Transactions; September 2007, Vol. 3 Issue: 34 p15-23, 9p
Abstrakt: The adsorbates formed by ultraviolet photo-assisted adsorption of allylamine (CH2=CHCH2-NH2) and allylalcohol (CH2=CHCH2- OH) on hydrogen-terminated Si(111) surfaces were examined by vibrational analysis using high-resolution electron energy loss spectroscopy (HREELS). The spectra exhibit the stretching signals for N-H and O-H, indicating the survival of functional groups -NH2 and -OH within the precursor molecules on the adsorbed layers. For the allylamine adsorbate, delivery of gaseous ketene (CH2=C=O) resulted in formation of amide (CH3CONH-) adsorbate. The allylamine adsorbate was evidently functional for peptide-bond formation. These monolayers are prospective materials for usage in nanometer-scale fabrication, chemical functionalization and biochemical analysis.
Databáze: Supplemental Index