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- W1995450168 abstract "Abstract Surface enhanced Raman scattering (SERS) has been observed from α-bithiophene (2T) and α-quaterthiophene (4T) adsorbed on Ag sols. Experimental results suggest that the adsorbed oligothiophene molecules are anti but twisted and the twist angle is smaller in the surface adsorbed state than in solution. It has been observed that the enhancement factor decreases with the increase of the chain length and maximum enhancement is obtained at a higher concentration for the longer oligomer. The Raman excitation frequency dependence of the enhancement suggests a significant classical electromagnetic contribution to the SERS of oligothiophenes in Ag sols" @default.
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- W1995450168 date "1992-11-01" @default.
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- W1995450168 title "Surface enhanced Raman spectroscopic study of α-bithiophene and α-quaterthiophene molecules adsorbed on silver sols" @default.
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- W1995450168 doi "https://doi.org/10.1016/0584-8539(92)80236-p" @default.
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