Abstract
A very interesting challenge concerns the elaboration of nanowires from organic polymers with the aim to design novel nanoelectronic devices. The new VK-Stilbene copolymer based on organic nanowires was developed and characterized in this context. The VK-Stilbene nanowires were made with a template method by filling nanopores of AOO membranes. The prepared nanowires wereinvestigated by morphological spectroscopy and micro-Raman Rinshaw analysis. The modifications of photoemissive properties from microscopy film to nanowires were described by steady-state optical techniques combinedwith time-resolved photoluminescence spectroscopy. A blue shift of the luminescence are observed in the case of nanowires proceed from structural order and shortening of effective conjugation lengths. Therefore, VK-Stilbene nanowires exhibit a remarkably quasi-exponential long-lived and blue-shifted ascribed to a confinement-effect of intra-chain singlet excitons. Additionally, these nano-objects show an increase in the quantum yield with respect to bulk samples. The acquired optical data confirm that VK-Stilbene nanomaterials may be suitable for nanotechnologies.
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•Engineering of the VK-Stilbene in nanowires through hard template method for tuning the photoluminescence.•Photoluminescence properties of the nanowires can be explained by the new arrangement of chains copolymer by confinement.•A high quantum yields of photoluminescence and good luminescence efficiency in VK-Stilbene nanowires.