Abstract: Novel imidazolium salts of formula (I) are described in which R is a C1-C14 alkyl group, optionally substituted by one or more fluorine atoms, or a C2-C18 alkoxyalkyl group, R? is an alkyl group containing at least 8 carbon atoms, at least 6 of which are partially or entirely fluorinated, R? is hydrogen or C1-C3 alkyl, Z is an organic or inorganic anion, and Q is further defined. The compounds of formula (I) are liquid crystals over a wide temperature range, and are characterized by high conductivity, hydrophobicity and stability. These properties made them ideally suitable for use in devices based on electrochemical reactions, such as solar cells, fuel cells, electrochemical sensors, lithium batteries and capacitors, etc.
Type:
Grant
Filed:
June 10, 2010
Date of Patent:
April 3, 2018
Assignee:
DAUNIA SOLAR CELL S.R.L.
Inventors:
Giuseppe Resnati, Pierangelo Metrangolo, Antonio Abate, Francesco Matteucci
Abstract: The present invention relates to a process for the preparation of materials with nanometric dimensions and controlled shape, based on titanium dioxide. The invention also relates to a process for the preparation of titanium dioxide nanorods and nanocubes with anatase phase composition, which are highly suitable for photocatalytic use, in particular for applications involving photovoltaic cells, for example Dye Sensitized Solar Cells (DSSC), photoelectrolysis cells and tandem cells for the conversion of solar energy and the production of hydrogen.
Type:
Grant
Filed:
July 15, 2010
Date of Patent:
July 21, 2015
Assignee:
DAUNIA SOLAR CELL S.R.L.
Inventors:
Isabella Zama, Francesco Matteucci, Christian Martelli, Giuseppe Ciccarella
Abstract: The invention includes a composition for sealing agent, generally in the form of glass frit, lead-free, comprising by weight over the total weight of the composition: 30-80% Bi2O3; 2-10% ZnO; 2-10% B2O3; 0-5% Na2O; 1-10% SiO2; 1-8% Al2O3; 0-7% BaO; and 0-8% MgO. The composition for sealing agent as defined above can be added with a filler in a quantity up to 20% by weight over the total weight of the resulting mixture. The invention also includes a sealing paste containing the composition for sealing agent, the optional filler, an organic binder and optionally an organic solvent. The invention also includes methods for producing and using the composition for sealing agent and the sealing paste, as well as an electronic device sealed with the sealing paste.
Abstract: The invention includes a composition for sealing agent, generally in the form of glass frit, lead-free, comprising by weight over the total weight of the composition: 30-80% Bi2O3; 2-10% ZnO; 2-10% B2O3; 0-5% Na2O; 1-10% SiO2; 1-8% Al2O3; 0-7% BaO; and 0-8% MgO. The composition for sealing agent as defined above can be added with a filler in a quantity up to 20% by weight over the total weight of the resulting mixture. The invention also includes a sealing paste containing the composition for sealing agent, the optional filler, an organic binder and optionally an organic solvent. The invention also includes methods for producing and using the composition for sealing agent and the sealing paste, as well as an electronic device sealed with the sealing paste.
Abstract: The present invention relates to an industrial applicable process for the preparation of materials with nanometric dimensions and controlled shape, based on titanium dioxide. The invention also relates to a process for the preparation of titanium dioxide nanorods with anatase phase composition, which are highly suitable for applications involving photovoltaic cells, particularly Dye Sensitized Solar Cells (DSSC), photoelectrolysis cells and tandem cells for the conversion of solar energy and the production of hydrogen.
Type:
Grant
Filed:
February 11, 2008
Date of Patent:
December 11, 2012
Assignee:
Daunia Solar Cell, S.r.l.
Inventors:
Giuseppe Ciccarella, Roberto Cingolani, Luisa De Marco, Giuseppe Gigli, Giovanna Melcarne, Francesca Martina, Francesco Matteucci, Jolanda Spadavecchia
Abstract: The present invention relates to a process for the preparation of materials with nanometric dimensions and controlled shape, based on titanium dioxide. The invention also relates to a process for the preparation of titanium dioxide nanorods and nanocubes with anatase phase composition, which are highly suitable for photocatalytic use, in particular for applications involving photovoltaic cells, for example Dye Sensitized Solar Cells (DSSC), photoelectrolysis cells and tandem cells for the conversion of solar energy and the production of hydrogen.
Type:
Application
Filed:
July 15, 2010
Publication date:
July 5, 2012
Applicant:
DAUNIA SOLAR CELL S.R.L.
Inventors:
Isabella Zama, Francesco Matteucci, Christian Martelli, Giuseppe Ciccarella
Abstract: Novel imidazolium salts of formula (I) are described in which R is a C1-C14 alkyl group, optionally substituted by one or more fluorine atoms, or a C2-C18 alkoxyalkyl group, R? is an alkyl group containing at least 8 carbon atoms, at least 6 of which are partially or entirely fluorinated, R? is hydrogen or C1-C3 alkyl, Z is an organic or inorganic anion, and Q is further defined. The compounds of formula (I) are liquid crystals over a wide temperature range, and are characterised by high conductivity, hydrophobicity and stability. These properties made them ideally suitable for use in devices based on electrochemical reactions, such as solar cells, fuel cells, electrochemical sensors, lithium batteries and capacitors, etc.
Type:
Application
Filed:
June 10, 2010
Publication date:
May 31, 2012
Applicant:
DAUNIA SOLAR CELL S.R.L.
Inventors:
Giuseppe Resnati, Pierangelo Metrangolo, Antonio Abate, Francesco Matteucci
Abstract: The present invention relates to an industrial applicable process for the preparation of materials with nanometric dimensions and controlled shape, based on titanium dioxide. The invention also relates to a process for the preparation of titanium dioxide nanorods with anatase phase composition, which are highly suitable for applications involving photovoltaic cells, particularly Dye Sensitized Solar Cells (DSSC), photoelectrolysis cells and tandem cells for the conversion of solar energy and the production of hydrogen.
Type:
Application
Filed:
February 11, 2008
Publication date:
December 16, 2010
Applicant:
DAUNIA SOLAR CELL S.r.l.
Inventors:
Giuseppe Ciccarella, Roberto Cingolani, Luisa De Marco, Giuseppe Gigli, Giovanna Melcarne, Francesca Martina, Francesco Matteucci, Jolanda Spadavecchia