Patents by Inventor Joel Dufourcq
Joel Dufourcq has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10038133Abstract: Sensor including a substrate, an assembly of thermoelectric layers including at least one first and one second junction of a thermocouple, at least one first and one second connection pads arranged to transfer heat respectively to each first and each second junction, a support member (2) of the substrate (3) intended to be connected to the hot source (Sc) and to the cold source (Sf), first and second metal connectors arranged to electrically connect the support member (2) respectively to each first and each second connection pad, the support member (2) including a thermal conductor configured to transfer heat from the hot source (Sc) to the first metal connector, and to transfer heat from the second metal connector to the cold source (Sf).Type: GrantFiled: December 18, 2015Date of Patent: July 31, 2018Assignees: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, HOTBLOCK ONBOARDInventors: Guillaume Savelli, Joël Dufourcq
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Patent number: 9502597Abstract: The invention relates to a method for manufacturing a photovoltaic module comprising a plurality of solar cells in a thin-layer structure, in which the following are consecutively formed: an electrode on the rear surface (41), a photovoltaic layer (46) obtained by depositing a layer (42) of precursors and by annealing such as to convert the precursors into a semiconductor material, and another semiconductor layer (43) in order to create a pn junction with the photovoltaic layer (46); characterized in that the layer (42) is deposited in a localized manner, such as to leave free at least one area (410) of the electrode on the rear surface (41) placed between two adjacent cells, wherein the annealing step modifies said area (410) which has higher resistivity than the rest of the electrode on the rear surface (41), such as to provide electric insulation between two adjacent cells.Type: GrantFiled: January 9, 2013Date of Patent: November 22, 2016Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Joel Dufourcq, Sevak Amtablian, Nicolas Karst, Frederic Roux
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Patent number: 9461231Abstract: This sensor (1) includes an assembly of thermoelectric layers, a support member (2) including at least one first and one second metallic connector pins (30, 31), first and second metal connectors arranged to electrically connect the support member (2) respectively to a first connection pad and a second connection pad, an external package (8) including a first surface (8a) and a second opposite surface (8b) intended to be respectively connected to a hot source and to a cold source, a first via (80) connecting the first surface (8a) to each first connector pin (30), a second via (81) connecting the second surface (8b) to each second connector pin (31), and the support member (2) includes thermal conductors between the connector pins (30, 31) and the metal connectors.Type: GrantFiled: December 18, 2015Date of Patent: October 4, 2016Assignees: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, HOTBLOCK ONBOARDInventors: Guillaume Savelli, Joël Dufourcq
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Publication number: 20160181502Abstract: Sensor including a substrate, an assembly of thermoelectric layers including at least one first and one second junction of a thermocouple, at least one first and one second connection pads arranged to transfer heat respectively to each first and each second junction, a support member (2) of the substrate (3) intended to be connected to the hot source (Sc) and to the cold source (Sf), first and second metal connectors arranged to electrically connect the support member (2) respectively to each first and each second connection pad, the support member (2) including a thermal conductor configured to transfer heat from the hot source (Sc) to the first metal connector, and to transfer heat from the second metal connector to the cold source (Sf).Type: ApplicationFiled: December 18, 2015Publication date: June 23, 2016Applicants: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, HOTBLOCK ONBOARDInventors: Guillaume SAVELLI, Joël DUFOURCQ
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Publication number: 20160181501Abstract: This sensor (1) includes an assembly of thermoelectric layers, a support member (2) including at least one first and one second metallic connector pins (30, 31), first and second metal connectors arranged to electrically connect the support member (2) respectively to a first connection pad and a second connection pad, an external package (8) including a first surface (8a) and a second opposite surface (8b) intended to be respectively connected to a hot source and to a cold source, a first via (80) connecting the first surface (8a) to each first connector pin (30), a second via (81) connecting the second surface (8b) to each second connector pin (31), and the support member (2) includes thermal conductors between the connector pins (30, 31) and the metal connectors.Type: ApplicationFiled: December 18, 2015Publication date: June 23, 2016Applicants: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, HOTBLOCK ONBOARDInventors: Guillaume SAVELLI, Joël DUFOURCQ
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Publication number: 20160163946Abstract: The thermoelectric device includes a first duct housed in a second duct in tightly sealed manner. The first and second ducts extend along a longitudinal axis. The device further includes a thermocouple extending along a transverse axis. The thermocouple is interposed between the first and second ducts which are shaped in such a way that the thermocouple undergoes a compressive stress, in the transverse direction.Type: ApplicationFiled: July 15, 2014Publication date: June 9, 2016Applicants: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, HOTBLOCK ONBOARDInventors: Sébastien VESIN, Joël DUFOURCQ
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Patent number: 9343604Abstract: A method for manufacturing two series-connected photovoltaic cells includes: forming an insulating substrate; forming a stack including; a first conductive layer formed on the substrate; a semiconductor layer comprising a first absorption layer and a second semiconductor layer forming a junction with the first absorption layer; and a second transparent conductive layer, formed on the absorption layer; forming an area dividing the stack into two cells series-connected by an electric path. The forming of said path comprises: forming a first trench all the way to the substrate; forming a second trench all the way to the first conductive layer; and depositing a conductive solution on the first trench and at last a portion of the second trench, so that the solution does not penetrate into the first trench all the way to the first conductive layer and penetrates into the second trench all the way to the first conductive layer.Type: GrantFiled: August 15, 2013Date of Patent: May 17, 2016Assignee: Commissariat A L'Energie Atomique Et Aux Energies AlternativesInventors: Anne-Laure Seiler, Philippe Coronel, Joël Dufourcq
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Patent number: 9076918Abstract: The present invention relates to a process for selective wet chemical etching of a thin-film substrate comprising a CIGS surface layer. The present invention also relates to a process for producing cells in series for thin-film photovoltaic modules, which process implements the selective wet chemical etching process according to the invention. The present invention furthermore relates to a process for creating small patterns, such as for example monolithic interconnects, in thin-film photovoltaic devices, which process implements the selective wet chemical etching process according to the invention.Type: GrantFiled: March 1, 2012Date of Patent: July 7, 2015Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Dario Rapisarda, Joël Dufourcq, Simon Perraud, Olivier Poncelet
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Publication number: 20150020864Abstract: The invention relates to a method for manufacturing a photovoltaic module comprising a plurality of solar cells in a thin-layer structure, in which the following are consecutively formed: an electrode on the rear surface (41), a photovoltaic layer (46) obtained by depositing a layer (42) of precursors and by annealing such as to convert the precursors into a semiconductor material, and another semiconductor layer (43) in order to create a pn junction with the photovoltaic layer (46); characterised in that the layer (42) is deposited in a localised manner, such as to leave free at least one area (410) of the electrode on the rear surface (41) placed between two adjacent cells, wherein the annealing step modifies said area (410) which has higher resistivity than the rest of the electrode on the rear surface (41), such as to provide electric insulation between two adjacent cells.Type: ApplicationFiled: January 9, 2013Publication date: January 22, 2015Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Joël Dufourcq, Sévak Amtablian, Nicolas Karst, Frédéric Roux
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Publication number: 20140302633Abstract: The present invention relates to a process for selective wet chemical etching of a thin-film substrate comprising a CIGS surface layer. The present invention also relates to a process for producing cells in series for thin-film photovoltaic modules, which process implements the selective wet chemical etching process according to the invention. The present invention furthermore relates to a process for creating small patterns, such as for example monolithic interconnects, in thin-film photovoltaic devices, which process implements the selective wet chemical etching process according to the invention.Type: ApplicationFiled: March 1, 2012Publication date: October 9, 2014Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUET ET AUX ENERGIES ALTERNATIVESInventors: Dario Rapisarda, Joël Dufourcq, Simon Perraud, Olivier Poncelet
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Publication number: 20140147959Abstract: The invention relates to a liquid metal emulsion. The emulsion according to the invention includes a liquid metal selected from among gallium, indium, and the alloys thereof, and a solvent that is an alkanethiol. The invention is useful in particular in the field of manufacturing thin films.Type: ApplicationFiled: August 24, 2011Publication date: May 29, 2014Applicant: Commissariat A L'Energie Atomique Et Aux Energies AlternativesInventors: Olivier Raccurt, Joel Dufourcq, Julien Jouhannaud, Olivier Poncelet, Flore Sonier, Maryline Roumanie
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Publication number: 20140014156Abstract: A method for manufacturing two series-connected photovoltaic cells includes: forming an insulating substrate; forming a stack including; a first conductive layer formed on the substrate; a semiconductor layer comprising a first absorption layer and a second semiconductor layer forming a junction with the first absorption layer; and a second transparent conductive layer, formed on the absorption layer; forming an area dividing the stack into two cells series-connected by an electric path. The forming of said path comprises: forming a first trench all the way to the substrate; forming a second trench all the way to the first conductive layer; and depositing a conductive solution on the first trench and at last a portion of the second trench, so that the solution does not penetrate into the first trench all the way to the first conductive layer and penetrates into the second trench all the way to the first conductive layer.Type: ApplicationFiled: August 15, 2013Publication date: January 16, 2014Applicant: Commissariat A L'Energie Atomique Et Aux Energies AlternativesInventors: Anne-Laure SEILER, Philippe CORONEL, Joël DUFOURCQ
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Publication number: 20090246510Abstract: A device and method include forming a mask on a substrate supporting a plurality of metallic nanocrystals such that a portion of the metallic nanocrystals is exposed. Protective shells are formed about the exposed metallic nanocrystals. Unprotected metallic nanocrystals are removed.Type: ApplicationFiled: March 25, 2008Publication date: October 1, 2009Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE, ATMEL ROUSSETInventors: Joel Dufourcq, Laurent Vandroux, Pierre Mur, Sylvie Bodnar
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Publication number: 20090243048Abstract: A method of forming a device includes forming protective shells about metallic nanocrystals supported by a substrate. The metallic nanocrystals having protective shells are encapsulated with a layer formed with process parameters that are not compatible with the integrity of unprotected metallic nanocrystals.Type: ApplicationFiled: March 25, 2008Publication date: October 1, 2009Inventors: Joel Dufourcq, Laurent Vandroux, Pierre Mur, Sylvie Bodnar