Novel carbon nanospheres and poly(9-vinylcarbazole) composites: Synthesis, structural and photo-physical properties of films elaboration

The photophysical and structural properties of poly(9-vinylcarbazole) and carbon nanospheres (CNS) based composites are investigated. The effect of CNS on the optical and vibrational properties of the new synthesized composite with several concentration weights (1.7, 3 and 5%) and also charge transf...

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Bibliographic Details
Published in:Materials chemistry and physics 2018-06, Vol.211, p.399-405
Main Authors: Mbarek, M., Ghnimi, M., Abbassi, F., Alimi, K.
Format: Article
Language:English
Subjects:
Carbon
Charge transfer
CNS
Composite
Composite materials
Dynamic stability
Graphitization
Morphology
Nanocomposites
Nanospheres
Optical properties
Photoluminescence
Physical properties
Polyvinyl carbazole
Raman
Raman spectra
Scanning electron microscopy
Scattering
Transmission electron microscopy
Vibration analysis
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Summary:The photophysical and structural properties of poly(9-vinylcarbazole) and carbon nanospheres (CNS) based composites are investigated. The effect of CNS on the optical and vibrational properties of the new synthesized composite with several concentration weights (1.7, 3 and 5%) and also charge transfer process were examined by various optical and structural characterizations. Scanning and transmission electron microscopy were indented to show the morphology of CNS and their distribution on PVK matrix. States and time resolved photoluminescence decays of composites were used to evidence the charge transfer and dynamical properties of their excited states. The stability and the graphitized degree of CNS were found by Raman scattering analysis. [Display omitted] •Film composites morphology and CNSs dispersity are determined by SEM and TEM.•Raman analysis was used to study stability and the degree of graphitized of CNSs.•Vibrational analysis was used to examine the functionalization of CNS with PVK.•Charge transfer was studied by stationary and transient photoluminescence.•The non-radiative pathway is the preferred one of photo-generated excitons.
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2018.03.006