Eni S.p.a.

Riccardo Po′

Giuliana Schimperna

Maria Caldararo

Andrea Pellegrino

Alessandra Cominetti

Cecilia Querci

Matteo Russo

Maria Anna Cardaci

Hole transporting material obtained through a process comprising:

Hole transporting material and photovoltaic device that uses it

Monomers having formula (I) and process for their synthesis which comprises the etherification reaction of a halogen-derivative (Z&#x2550;Cl, Br, I) having formula (III) with the hydroxyl group of the glycerol derivative (IV), according to the following scheme: 

Aromatic monomers deriving from glycerol units, process for their preparation and use thereof for the preparation of water-soluble conjugated polymers

The present invention relates to copolymers for solar cells based on acridonic units comprising: a monomeric unit (A) having general formula (I) wherein X is S or Se, Y is 0, S or NR' and R, R&#x2032;, the same or different, are C-Calkyl groups, aryl groups optionally substituted with other functional groups, acyl groups or thioacyl groups; at least one monomer unit (B) having general formula (II) wherein Z is 0, S, Se or N&#x2014;R&#x2033;, wherein R&#x2033; is a C-Calkyl group, an aryl group optionally substituted with other functional groups, an acyl group or thioacyl group, said monomeric unit (B) being connected to any position available of a hetero-aromatic side ring of the unit (A) through one of the two positions indicated by the dashed lines in general formula (II). Photovoltaic devices comprising said alternating &#x3c0;-conjugated polymers are also described. 

Copolymers for solar cells based on acridonic units

Copolymers of acrylamide or methacrylamide, suitably modified with appropriate percentages of units deriving from comonomers of a hydrophobic nature and comonomers containing a positively charged ionic group, which are capable of effectively reducing the water permeability of a porous medium.

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Novara, Italy

Riccardo Po′