Patents by Inventor Sylvain De Vecchi
Sylvain De Vecchi 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).
-
Patent number: 11424378Abstract: A photovoltaic device is provided that comprises a photovoltaic active zone being formed of a stack of thin films comprising a first electrode, an absorber film and a metallic electrode. A collection gate is arranged in contact with the first electrode to reduce its electrical resistance and avoid direct physical or electrical contact with the metallic electrode. The photovoltaic active zone includes a plurality of channels, made in the metallic electrode and the absorber film. The collection gate is separated from the metallic electrode and from the absorber film by a dielectric material.Type: GrantFiled: July 10, 2020Date of Patent: August 23, 2022Inventors: Philippe Gilbert Frederic Cardi, Sylvain De Vecchi
-
Publication number: 20220085233Abstract: A method for optimizing the electrical performance of all or part of a photovoltaic module (11) through breakdown at the metal/oxide/metal interface. The method may include: —Step 1: Illuminating all or part of said photovoltaic module with a luminous flux controlled by a control module (14); —Step 2: Reverse-biasing said photovoltaic module: by subjecting it to a voltage sweep ranging from ?Voc/2, Voc being the open-circuit voltage, to a limit bias voltage VL whose value depends on the mode of interconnection and on the number (NB) of cells forming all or part of said photovoltaic module.Type: ApplicationFiled: November 22, 2021Publication date: March 17, 2022Inventors: Sylvain De Vecchi, Brice Arrazat
-
Publication number: 20200343395Abstract: A photovoltaic device is provided that comprises a photovoltaic active zone being formed of a stack of thin films comprising a first electrode, an absorber film and a metallic electrode. A collection gate is arranged in contact with the first electrode to reduce its electrical resistance and avoid direct physical or electrical contact with the metallic electrode. The photovoltaic active zone includes a plurality of channels, made in the metallic electrode and the absorber film. The collection gate is separated from the metallic electrode and from the absorber film by a dielectric material.Type: ApplicationFiled: July 10, 2020Publication date: October 29, 2020Inventors: Philippe Gilbert Frederic Cardi, Sylvain De Vecchi
-
Patent number: 10770608Abstract: The invention relates to a photovoltaic mono cell that is semi-transparent to light, comprising a plurality of active photovoltaic zones that are separated by transparent zones, said active photovoltaic zones being formed from a stack of thin films arranged on a substrate that is transparent to light, said stack of thin films consisting at least of a transparent electrode, an absorber layer and a metal electrode, said transparent zones being apertures produced at least in the metal electrode and in the absorber layer in order to allow as much light as possible to pass, characterized in that it furthermore comprises an electrically conductive collecting gate arranged either making contact with the front electrode in order to decrease the electrical resistance of the transparent electrode, or making contact with the absorber in order to facilitate collection of the electrical current generated by said mono cell.Type: GrantFiled: May 22, 2014Date of Patent: September 8, 2020Assignee: Garmin Switzerland GmbHInventors: Philippe Gilbert Frederic Cardi, Sylvain De Vecchi
-
Patent number: 10461861Abstract: A coded-light communication device is described, in which the communication has an initial signal-to-noise ratio, which varies according to the lighting conditions. The device comprises at least one photodetector-type light receiver comprising an anode and a cathode and having an initial shunt resistance. The receiver is capable of being simultaneously exposed to a coded light source carrying a signal and a non-coded light source. The anode and cathode are short-circuited by at least one short-circuit resistance arranged inside the photodetector, having a value selected so that the new value of the shunt resistance of the photodetector resulting from the connection of the initial shunt resistance and the short-circuit resistance gives the communication device a new resultant signal-to-noise ratio which remains substantially independent of the intensity of the non-coded light.Type: GrantFiled: December 30, 2016Date of Patent: October 29, 2019Assignee: Garmin Switzerland GmbHInventors: Brice Arrazat, Emilie Bialic, Sylvain de Vecchi
-
Publication number: 20190028194Abstract: A coded-light communication device is described, in which the communication has an initial signal-to-noise ratio, which varies according to the lighting conditions. The device comprises at least one photodetector-type light receiver comprising an anode and a cathode and having an initial shunt resistance. The receiver is capable of being simultaneously exposed to a coded light source carrying a signal and a non-coded light source. The anode and cathode are short-circuited by at least one short-circuit resistance arranged inside the photodetector, having a value selected so that the new value of the shunt resistance of the photodetector resulting from the connection of the initial shunt resistance and the short-circuit resistance gives the communication device a new resultant signal-to-noise ratio which remains substantially independent of the intensity of the non-coded light.Type: ApplicationFiled: December 30, 2016Publication date: January 24, 2019Applicant: Sunpartner TechnologiesInventors: Brice Arrazat, Emilie Bialic, Sylvain de Vecchi
-
Patent number: 9711673Abstract: A display device comprising at least: (a) a plurality of photovoltaic active areas and a plurality of holes, two neighboring photovoltaic active areas forming an opening; (b) one or more artificial light sources; (c) a plurality of light concentrators and reflective opaque disposed between said light sources and said photovoltaic active areas. This device wherein said hubs of light are arranged so that the light emitted from artificial light sources is directed by the light concentrators through the holes.Type: GrantFiled: October 31, 2014Date of Patent: July 18, 2017Assignee: SUNPARTNER TECHNOLOGIESInventors: Badre Kerzabi, Cyril Chappaz, Alain Cenne, Sylvain De Vecchi
-
Publication number: 20160126407Abstract: The invention relates to a photovoltaic mono cell that is semi-transparent to light, comprising a plurality of active photovoltaic zones that are separated by transparent zones, said active photovoltaic zones being formed from a stack of thin films arranged on a substrate that is transparent to light, said stack of thin films consisting at least of a transparent electrode, an absorber layer and a metal electrode, said transparent zones being apertures produced at least in the metal electrode and in the absorber layer in order to allow as much light as possible to pass, characterized in that it furthermore comprises an electrically conductive collecting gate arranged either making contact with the front electrode in order to decrease the electrical resistance of the transparent electrode, or making contact with the absorber in order to facilitate collection of the electrical current generated by said mono cell.Type: ApplicationFiled: May 22, 2014Publication date: May 5, 2016Applicant: SUNPARTNER TECHNOLOGIESInventors: Philippe Gilbert Frederic CARDI, Sylvain DE VECCHI
-
Publication number: 20150311373Abstract: A display device comprising at least: (a) a plurality of photovoltaic active areas and a plurality of holes, two neighboring photovoltaic active areas forming an opening; (b) one or more artificial light sources; (c) a plurality of light concentrators and reflective opaque disposed between said light sources and said photovoltaic active areas. This device wherein said hubs of light are arranged so that the light emitted from artificial light sources is directed by the light concentrators through the holes.Type: ApplicationFiled: October 31, 2014Publication date: October 29, 2015Inventors: Badre KERZABI, Cyril Chappaz, Alain Cenne, Sylvain De Vecchi
-
Publication number: 20150243833Abstract: A method for producing an electrical contact of a semiconductor device, including: depositing an optically transparent electrically conductive layer on a face of the device; depositing first and second dielectric layers on the layer, in which the second dielectric layer can be selectively laser etched; selectively laser etching the second dielectric layer, forming a first opening; producing a second opening aligned with the first opening in the first dielectric layer; depositing an electrically conductive material on the optically transparent electrically conductive layer through the second opening such that portions of the electrically conductive material are deposited on the second dielectric layer, around the first opening; and etching parts of the second dielectric layer which are not covered with portions of the electrically conductive material.Type: ApplicationFiled: August 22, 2013Publication date: August 27, 2015Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALTInventors: Thibaut Desrues, Sylvain De Vecchi, Fabien Ozanne, Florent Souche
-
Publication number: 20140373919Abstract: A photovoltaic cell including a semiconductor substrate of a first conductivity type provided with a main surface, a first layer made from amorphous semiconductor material of first conductivity type in contact with the main surface of the substrate, a first electric contact formed on the first amorphous layer, a second layer of amorphous semiconductor material of a second conductivity type in contact with the main surface of the substrate, a second electric contact formed on the second amorphous layer and an electrically insulating layer, a cell wherein the electrically insulating layer is formed completely on the first amorphous layer and the first and second contacts extend on the electrically insulating layer.Type: ApplicationFiled: January 3, 2013Publication date: December 25, 2014Inventors: Thibaut Desrues, Sylvain De Vecchi, Florent Souche