germanium and allyl-alcohol

In this paper, two simple cyanine dyes were synthesized through allyl alcohol monomer, and were bound to the polished monocrystalline germanium surface using a new chemical method. Raman spectra and X-ray photoelectron spectra (XPS) were used to analyze the dye-binding germanium wafers. In comparison with the contrast germanium wafer, the dye-binding germanium wafers showed that the intensity of the first grade Raman peak of the germanium substrate was reduced and some new Raman peaks corresponding to the dyes appeared from 600 to 3,200 cm-1. And from XPS, C-N, S-C, C-O bonds were proved to have been bound to the germanium surface. In conclusion, the two dyes were bound covalently to germanium wafers through Ge-O bond.

Topics: Carbocyanines; Chemical Phenomena; Chemistry, Physical; Crystallization; Electric Conductivity; Fluorescent Dyes; Germanium; Light; Propanols; Semiconductors; Spectrometry, X-Ray Emission; Spectrum Analysis, Raman