Photoactive Hybrid Polyoxometallates

Rémi Dessapt (MC), Hélène Serier-Brault (MC), Patricia Bolle

We are specialized in designing new photochromic and/or photoluminescent hybrid organic-inorganic materials based on polyoxometalates (POMs) which are anionic molecular transition metal-oxide clusters (Mo, W, V). These innovative smart systems exhibit remarkable photophysical properties in the solid state that are highly tunable by varying the nature of the inorganic and inorganic components, and their degree of interaction in the hybrid frameworks. These materials have potential technological and marketable applications such as ophthalmic lenses, smart pigments for paints and windows, optical switches, photoswitchable receptors, high-density optical data storage, and chemosensors.

Involved people

• Rémi Dessapt (MC)
• Hélène Serier-Brault (MC)
• Patricia Bolle (doctorante), ("Nouveaux matériaux hybrides photoactifs à l'état solide pour la réalisation de mémoires optiques à haute densité de stockage").

Defended PhD thesis

• Khadija Hakouk, Synthèse, caractérisation et photo-réactivité de polyoxométallates inorganiques et hybrides organique-inorganique, thèse soutenue le 5 décembre 2013
• Mathieu Collet, Synthèse, caractérisation et étude cinétique de coloration de composés hybrides organiques-inorganiques photochromes à base de polyoxomolybdates, thèse soutenue le 16 juin 2010
• Violaine Coué, Etude de Matériaux Hybrides Organique-Inorganique Photochromiques à Base de Polyoxomolybdates, thèse soutenue le 10 octobre 2008

Collaborators

• Pierre Mialane, Anne Dolbecq, Olivier Oms Institut Lavoisier (ILV), Université de Versailles Saint-Quentin en Yvelines (France)
• Véronique Guerchais, Hubert Le Bozec, Julien Boixel, Institut des Sciences Chimiques de Rennes, Université de Rennes
• Myung-Hwan Whangbo, Department of Chemistry, North Carolina State University, Raleigh (USA)

Financial supports

• ANR-11-BS07-011-01 BIOOPOM 2012-2015
• Projet HYPODS 2015-2017, financé par la Région Pays de la Loire – RFI LUMOMAT (Thèse Patricia Bolle)

 

Photochromic hybrid polyoxometalates Hélène Serier-Brault (Associate Professor), Rémi Dessapt (Associate Professor) We design new solid-state photochromic materials that exhibit reversible light-induced color changes. These systems are of great interest in a wide range of marketable applications (pigments for paints and windows, cosmetics, UV sensors), and other promising technological applications in photonic (optical switches, 3D high-density optical data storage). Read more...

Photoluminescent hybrid polyoxometalates Hélène Serier-Brault (Associate Professor), Rémi Dessapt (Associate Professor) We design new photoluminescent hybrid organic-inorganic materials in which POMs are used as efficient redox and optically active co-factors to tune the energy or the emission intensity of exogenous organic molecules in the solid state. Read more...