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Fabrication of a Covalently Attached Self-Assembly Multilayer Film Based on CdTe Nanoparticles

✍ Scribed by Hao Zhang; Bai Yang; Ruibing Wang; Gang Zhang; Xueliang Hou; Lixin Wu

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
168 KB
Volume
247
Category
Article
ISSN
0021-9797

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✦ Synopsis

A precursor film has been fabricated from TGA (thiolglycolic acid)-stabilized CdTe nanoparticles and NDR (nitro-containing diazoresin) using electrostatic interactions and the standard layer-by-layer assembly method; covalent bonds are formed under ultraviolet irradiation. XPS provided evidence for the presence of CdTe nanoparticles within the polymer ultrathin films. UV-visible spectroscopy and FTIR spectroscopy provide evidence for the formation of a covalent linkage. Moreover, the UV-visible spectroscopy and AFM measurement support the improvement of the stability of the hybrid organic/inorganic film toward polar solvents when the linkages between the nanoparticles and polymer changed from ionic bonds to covalent bonds.

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