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VANDANA1, PRAVEEN KUMAR2,* , M. MIAN1, R. THANGARAJ1
The present work reports the amorphization of polymer matrix with the nanocrystals formation in in-situ synthesized PEI/Ag nanocomposite films, where polyethyleneimine acts both as the reducing and stabilizing agent for the Ag nanoparticles. The fading of the diffraction halo characteristic of polymer along with the growth of cubic Ag phase in these nanocomposites has been observed from the x-ray diffraction studies. The intensity and position of the surface plasmon resonance (SPR) band strongly depends on the Ag salt concentration. The size of the nanoparticles was calculated using the Mie’s theory and depends on the Ag content in these nanocomposites. The PEI/Ag films exhibits two luminescence bands (326 and 357 nm for sample A6) with small change in peak position with the Ag content. The optical gap and tailing parameter were also calculated for the discussion of the structure-property relationship in the nanocomposite films..
PEI/Ag nanocomposites, Spin coating, XRD, Optical absorption, Surface plasmons.
VANDANA, PRAVEEN KUMAR, M. MIAN, R. THANGARAJ, Amorphization of polymer matrix with nanoparticle formation in spin coated PEI/Ag nanocomposites, Optoelectronics and Advanced Materials - Rapid Communications, 8, 3-4, March-April 2014, pp.238-241 (2014).
Submitted at: Sept. 3, 2012
Accepted at: March 13, 2014
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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