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MOLECULAR SELF-ASSEMBLY OF CHICAGO SKY BLUE ONTO SOLID SUBSTRATE

MOLECULAR SELF-ASSEMBLY OF CHICAGO SKY BLUE ONTO SOLID SUBSTRATE
Md. N. Islam, D. Dey, D. Bhattacharjee, S. A. Hussain
International Journal of Modern Physics B 25 (2011)1905-1914.

Abstract:

Self-assembled films of organic dye Chicago Sky Blue 6B (CSB) have been fabricated onto solid substrate by electrostatic alternate adsorption of polycation ploy(allylamine hydrochloride) (PAH) and CSB. UV–Vis absorption spectroscopic studies reveal the successful incorporation of CSB molecules into Layer-by-Layer (LbL) films and consequent formation of aggregates. This view is supported by FTIR spectroscopic studies. Scanning electron microscope picture confirms the formation of nanocrystalline aggregates in the LbL films. About 15 min is required to complete the electrostatic interaction between PAH and CSB molecules in one bilayer LbL film.

Keywords:      Layer-by-layer (LbL) self-assembled films; adsorption; multilayer; FTIR; SEM

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