The synthesis of a new nanostructured supramolecular europium complex supported by graphene oxide (GO) as a structure-forming site is herein presented. The bonding of Eu ions to the GO surface is proven by energy dispersive X-ray spectroscopy and photoluminescence mapping, as well as scanning electron microscopy (SEM), spectroscopic, Fourier transform infrared spectroscopy, Raman, and luminescence measurements. Though GO is one of the ligands and absorbs light strongly, the energy transfer from GO to Eu ion is weak. The splitting of D-5(0)-> F-7(2) peak and three-component luminescence decay means that there are several emitting centers in this composite. The obtained data are the first proof of concept for a stable, highly luminescent, and electrically conductive hybrid nanocomposite based on polystyrene added with 2% (w/w) of the obtained Eu-GO complex. The simple and reliable proposed procedure is prone to be easily scaled up and open the route for the commercialization of this nanomaterial.

Conductive Luminescent Material Based on Polymer-Functionalized Graphene Composite

Patrizia Lamberti;Paolo Ciambelli
2021

Abstract

The synthesis of a new nanostructured supramolecular europium complex supported by graphene oxide (GO) as a structure-forming site is herein presented. The bonding of Eu ions to the GO surface is proven by energy dispersive X-ray spectroscopy and photoluminescence mapping, as well as scanning electron microscopy (SEM), spectroscopic, Fourier transform infrared spectroscopy, Raman, and luminescence measurements. Though GO is one of the ligands and absorbs light strongly, the energy transfer from GO to Eu ion is weak. The splitting of D-5(0)-> F-7(2) peak and three-component luminescence decay means that there are several emitting centers in this composite. The obtained data are the first proof of concept for a stable, highly luminescent, and electrically conductive hybrid nanocomposite based on polystyrene added with 2% (w/w) of the obtained Eu-GO complex. The simple and reliable proposed procedure is prone to be easily scaled up and open the route for the commercialization of this nanomaterial.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/4800951
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact