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Semiconducting polymers for electronic and optoelectronic applications prepared by surface-confined polymerization

Mardi 09 juillet 2019 à 11:00
Salle de séminaires C5.421A, ​CEA-Grenoble
Publié le 9 juillet 2019

​Par le Pr Evgueni E. NESTEROV
Department of Chemistry & Biochemistry, Northern Illinois University, and Department of Chemistry, Louisiana State University

An ability to control nanoscale morphology and molecular organization in organic semiconducting polymer thin films is an important prerequisite for enhancing efficiency of organic thin-film devices including organic light-emitting and photovoltaic devices.  A promising approach toward such polymer films is surface-confined polymerization of small-molecule monomers.  In this presentation, we describe development of an efficient method to prepare bulk semiconducting polymer thin films as well as nanoscale organic/inorganic hybrid materials utilizing surface-confined Kumada catalyst transfer polymerization.  Extensive structural studies of such materials using X-ray and neutron scattering methods revealed detailed information on their molecular organization and bulk morphology, and enabled further optimization of the polymerization protocol.  Overall, the surface-confined polymerization provided an efficient tool to prepare structurally defined and highly stable semiconducting polymer films and hybrid nanoscale systems with tunable spectroscopic characteristics and electronic properties.

Contact : Said SADKI

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