WO/2015/071708 PHOTOVOLTAIC DEVICE AND METHOD OF MANUFACTURING SAME||WO||21.05.2015|
||PCT/IB2013/060215||ROTH & RAU AG||LACHENAL, Damien|
device comprising a crystalline semiconductor body (2); a front passivation layer (3); an emitter (4); a front-sided transparent conductive material stack (TC1, TC2); and a front grid metallization (7). The object of the present invention is to provide a decrease of optical and electrical losses in hetero-junction solar cells
caused by the transparent conductive material (TCM). The front-sided TCM stack comprises: a front-sided first and second transparent conductive layer consisting of a first or second base material with a first or second doping and having a non-stoichiometric composition with a first and second deviation from stoichiometry. The average carrier concentration of the whole front-sided transparent conductive material stack is between 1 x 1020 cm-3 and 2 x 1020 cm-3; the refractive indices (n > 2 at a wavelength of about 550 nm); and the carrier mobility in the font-sided first transparent conductive layer is higher than the carrier mobility in the front-sided second transparent conductive layer or structure if the layers have a comparable thickness.
WO/2015/071992 APPARATUS AND METHOD FOR BONDING INTERCONNECTOR AND SOLAR CELL ELEMENT||WO||21.05.2015|
||PCT/JP2013/080793||ECO. & ENGINEERING CO., LTD.||YAMAGUCHI Fumio|
Provided are an apparatus (1) for bonding together an interconnector (I) and a solar cell
element (P), and a bonding method using the bonding apparatus. The apparatus is characterized in being configured such that: the apparatus includes a main heating means (3) employing an induction heating system, said main heating means being capable of heating, from below a supporting table (2), a workpiece (W) on the supporting table (2), and a pressing means (4) that presses the workpiece (W) to the supporting table (2) from above the workpiece; and the apparatus pinches the workpiece (W) between the supporting table (2) and the pressing means (4) at the time of heating the interconnector (I) by means of the main heating means (3). The apparatus is also characterized in that the supporting table is configured such that there is no non-permeable material in a region (2a), which is provided between the interconnector and the main heating means, and which has, at the center, a position where at least a solar cell
element (P) and the interconnector (I) are bonded together, said region having a width that is equal to or more than a width of a moving track of the main heating means (3) that heats the interconnector.
The present invention provides the apparatus and method for bonding together the interconnector and the solar cell
element, said apparatus and method making it possible to manufacture a solar cell
panel with excellent operation efficiency at high yield and low cost.
WO/2015/070295 APPARATUS AND METHOD FOR INCREASING THE EFFICIENCY OF PHOTOVOLTAIC SYSTEMS THROUGH EVAPORATION COOLING||WO||21.05.2015|
||PCT/BG2013/000051||MITEV, Gancho||MITEV, Gancho|
The invention refers to the field of photovoltaic
(PV) systems for direct transformation of solar energy into electrical. The invention increases the efficiency of photovoltaic
systems through controlling the working temperature of the modules (1). Continuous cooling is achieved through evenly moisturising the heated surface of the photovoltaic
modules. A layer of felt or other textile (2) is used to transfer and evenly distribute the moisture over the entire surface of the module. They are either firmly pressed to the surface of the module by a net (3) or attached in an alternative way. Water is supplied to the layer of felt or other textile by a drop irrigation system with a reservoir (4) and compensated irrigation emitters with a fixed outflow. It periodically adds the appropriate quantities of water for achieving permanent working temperature of the photovoltaic
WO/2015/071256 SEALANT COMPOSITION, SOLAR CELL MODULE SEALANT PREPARED BY HARDENING THE SAME, AND METHOD FOR PRODUCING SOLAR CELL MODULE USING THE SAME||WO||21.05.2015|
||PCT/EP2014/074263||BAYER MATERIALSCIENCE AG||MITOBE, Hisao|
[Problems] Provided is the use of a composition as a solar cell
module sealant which is superior in weather resistance, vibration resistance, and productivity. [Solution] A solar cell
module 5 is sealed with a sealant composition comprising a polyol component (component A) and at least either one of aliphatic and alicyclic isocyanates (component B), wherein 93 to 100 wt % of the component A is the following poly ether polyol (X): (X) a polyether polyol prepared by ring-opening addition polymerization of a compound having an average functionality of 2 to 4 and containing at least either one of hydroxyl and amino groups with an alkylene oxide.
WO/2015/071425 DEVICE FOR TESTING A CONCENTRATED PHOTOVOLTAIC MODULE||WO||21.05.2015|
||PCT/EP2014/074635||SOITEC SOLAR GMBH||GASTALDO, Philippe|
The invention relates to a device for testing a concentrated photovoltaic
module (1) comprising at least one assembly of a photovoltaic
cell and of a concentrator, said device being characterised in that it comprises: a light source (2); a parabolic mirror (4) coupled to said source (2) so as to reflect the light emitted by said source in an almost collimated light beam toward the module (1) to be tested, in a direction perpendicular to the surface of said module; and an intensity filter (11) interposed on the path of the almost collimated beam upstream of the module (1) to be tested, said filter (11) comprising at least partially absorbent regions that have a neutral spectral density with respect to the light beam, said at least partially absorbent regions being arranged facing higher intensity zones of the beam, so as to attenuate differences in the intensity of the beam.
WO/2015/071420 DEVICE AND METHOD FOR TESTING A CONCENTRATED PHOTOVOLTAIC MODULE||WO||21.05.2015|
||PCT/EP2014/074626||SOITEC SOLAR GMBH||GASTALDO, Philippe|
The invention relates to a device and method for testing a concentrated photovoltaic
module (1) comprising a plurality of submodules (10), which comprises: light sources (2); and parabolic mirrors (4) coupled with the sources (2) so as to reflect the light from each source (2) in quasi-collimated light beams towards the module to be tested, perpendicular to said module (1). Each light source (2) comprises: an optical system comprising two parallel lenses (21, 22) on either side of a diaphragm (23); a lamp (24) on the optical axis (X) of said system; a reflector (25) arranged on said axis, on the side opposite the optical system (21, 22, 23) relative to the lamp (24), and translatably movable along said axis; and a housing (26) containing the optical system (21, 22, 23), the lamp (24) and the reflector (25) and including an outlet opening (27) for the light beam on said axis.
WO/2015/071423 METHOD FOR TESTING A CONCENTRATED PHOTOVOLTAIC MODULE||WO||21.05.2015|
||PCT/EP2014/074632||SOITEC SOLAR GMBH||BLANCHARD, Rémi|
The invention relates to a method for testing a concentrated photovoltaic
module (1) comprising a plurality of submodules (10) each containing a plurality of assemblies of a photovoltaic
cell (101) and of a concentrator (102) arranged relative to the cell in order to concentrate on said cell radiation arriving at normal incidence, in which: a plurality of almost collimated light beams are transmitted toward said module by means of a plurality of light sources (2) coupled to respective parabolic mirrors (4), each light source (2) comprising a lamp suitable for emitting a light pulse and a supply device suitable for supplying said lamp electrically, there being a turn-on delay between the triggering of the supply device and the emission of the pulse, and the supply device of each lamp is triggered at a respective instant set depending on the turn-on delay of said lamp so that the pulses of the pulses of all the lamps are emitted simultaneously and received simultaneously by the submodules.
WO/2015/071285 PHOTOVOLTAIC CELL WITH SILICON HETEROJUNCTION||WO||21.05.2015|
||PCT/EP2014/074325||COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES||BUCKLEY, Julien|
The invention relates to a photovoltaic
cell with silicon heterojunction comprising a doped crystalline silicon substrate (1), in which: - a first face of the substrate (1) is successively covered with a passivation layer (2), an amorphous or p or p+ doped microcrystalline silicon layer (3) and a layer (6) of a transparent conducting material, - the second face of the substrate is successively covered with an amorphous or n or n+ doped microcrystalline silicon layer (5) and a layer (7) of a transparent conducting material. Between the substrate (1) and the amorphous or n or n+ doped microcrystalline silicon layer (5), the cell comprises a layer (10) of a crystalline semi-conducting material selected from gallium nitride or indium gallium nitride and having a conduction band that is sensitively aligned with the conduction band of the silicon and a band gap greater than that of silicon, in such a way as to promote an electron current while limiting a hole current in the substrate (1) towards the amorphous or n or n+ doped microcrystalline silicon layer (5).
WO/2015/073415 METHOD FOR DELIVERING FLEXIBLE SOLAR CELLS INTO A ROLL-TO-ROLL MODULE ASSEMBLY PROCESS||WO||21.05.2015|
||PCT/US2014/064975||DOW GLOBAL TECHNOLOGIES LLC||TSAI, Szu-Ting|
Methods and systems for forming and packaging a roll of photovoltaic
cells are provided. A string of photovoltaic
cells is incrementally formed such that the photovoltaic
cells in the string extend from a leading edge of the string, where incrementally forming the string comprises sequentially connecting successive photovoltaic
cells, and where sequentially connecting successive photovoltaic
cells comprises connecting each successive photovoltaic
cell to a respective, previously-connected photovoltaic
cell that is farthest from the leading edge. Bypass diodes are electrically connected to successive portions of the string as the string is being formed. The string is wound with the bypass diodes connected thereto into a roll by rotating the leading edge of the string about a take-up roller as the string is being formed. In response to the string reaching a second predetermined number of photovoltaic
cells, the roll is completed and packaged.
WO/2015/073586 SOLAR ENERGY COLLECTION SYSTEMS UTILIZING HOLOGRAPHIC OPTICAL ELEMENTS USEFUL FOR BUILDING INTEGRATED PHOTOVOLTAICS||WO||21.05.2015|
||PCT/US2014/065303||SIMAVORYAN, Sergey||SIMAVORYAN, Sergey|
Described herein are transparent solar energy collection systems that comprise at least one holographic optical element, a transparent waveguide concentrator, and at least one solar energy conversion device.