EP4449506A1 - Elément de cellule photovoltaïque, cellule photovoltaïque et procédés de fabrication de tels élément et cellule - Google Patents
Elément de cellule photovoltaïque, cellule photovoltaïque et procédés de fabrication de tels élément et celluleInfo
- Publication number
- EP4449506A1 EP4449506A1 EP22823603.0A EP22823603A EP4449506A1 EP 4449506 A1 EP4449506 A1 EP 4449506A1 EP 22823603 A EP22823603 A EP 22823603A EP 4449506 A1 EP4449506 A1 EP 4449506A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- substrate
- trench
- internal
- separation
- photovoltaic cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
- H10F71/121—The active layers comprising only Group IV materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/10—Semiconductor bodies
- H10F77/14—Shape of semiconductor bodies; Shapes, relative sizes or dispositions of semiconductor regions within semiconductor bodies
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/10—Semiconductor bodies
- H10F77/14—Shape of semiconductor bodies; Shapes, relative sizes or dispositions of semiconductor regions within semiconductor bodies
- H10F77/147—Shapes of bodies
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P52/00—Grinding, lapping or polishing of wafers, substrates or parts of devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Definitions
- the present invention relates to the field of photovoltaic cells. It finds a particularly advantageous application for the production of photovoltaic cells having unconventional geometric shapes such as shapes having a hollowed-out internal part, for example rings.
- a photovoltaic cell converts part of the light radiation into electrical energy.
- a photovoltaic cell comprises a substrate configured to generate electrons upon reception of light radiation, a first electrically conductive structure on a first surface of the substrate and a second electrically conductive structure on a second surface of the substrate, opposite the first surface.
- Each surface layer generally allowing the privileged collection of a type of carrier (electrons or holes).
- the substrate mainly used comprises silicon.
- a cell of the HET type is a cell comprising a layer of a crystalline substrate and at least one layer of hydrogenated amorphous silicon in contact with the layer of crystalline substrate.
- the devices integrating photovoltaic cells are very numerous, and require photovoltaic cells of very variable sizes and also of very variable shape.
- photovoltaic cell shapes are generally discs or squares, with raised or rounded edges.
- photovoltaic cells for various and varied devices, such as roller shutters or connected objects, in particular for small devices, such as calculators, etc.
- cutting leads to electrical losses, which are relatively high for high-efficiency cells. This is even more true for small cells, where the effect of the cut edge becomes very important with respect to the total surface of the cell. Indeed, it is observed that the more the size of a cell obtained by cutting decreases, the more the electrical losses increase. Moreover, the greater the incident energy of the laser used for cutting, the more the final performance of the cell is degraded. Indeed, the impact of the temperature generated by the laser is significant, and the use of a high-power laser, necessary to ensure good cutting, does not make it possible to obtain cells with sufficient electrical performance. Cutting optimization can consist of using successive passes to reduce the impact of each laser shot. Nevertheless, a final degradation is observed, all the more important as the trench to be generated for a clean cut will have to be deep.
- An object of the invention consists in proposing means for providing a photovoltaic cell element exhibiting satisfactory performance.
- Another object consists in providing means for providing a photovoltaic cell element adapted to be integrated within a device of small size.
- a method for manufacturing at least one photovoltaic cell element comprising:
- the method further comprises:
- a so-called internal separation comprising a mechanical separation of the second part with the third part so as to obtain at least one photovoltaic cell element from the third part of the substrate.
- a method is provided that is particularly suitable for obtaining photovoltaic cell elements having complex shapes, in particular unconventional geometric shapes, such as of the round, triangle, ring, hexagon, etc. type.
- a method makes it possible to obtain elements having a hollow part of material, for example at the heart of the element.
- the proposed process makes it possible to obtain a possibly complex shape, for example hollowed out, with a considerably reduced risk of breakage.
- this process including a starter trench facilitates in particular the mechanical separation of the second and third part, and therefore allows a significant reduction in the depth of the trench necessary for the separation of the different parts of the substrate. Consequently, the incident laser power necessary to produce the internal and/or external trench(es) is also greatly reduced.
- the proposed method thus makes it possible to reduce the degradation of the substrate caused by the power of the laser. In the end, the proposed process thus makes it possible to improve the performance, in particular the yield, of photovoltaic cells with complex shapes.
- a method of manufacturing a cell photovoltaic comprising a manufacture of at least one photovoltaic cell element as defined above and at least one metallization, carried out before or after the internal separation, the metallization comprising a formation of a first electrically conductive structure on a first surface of the substrate and a second electrically conductive structure on a second surface of the substrate, opposite the first surface.
- a photovoltaic cell element comprising a photovoltaic cell substrate configured to generate electrons on reception of light radiation, an external contour and an internal contour delimiting the substrate, the element being devoid of material outside the outer contour and inside the inner contour and the substrate includes a leader trench formed at least partially on a surface of the substrate.
- a photovoltaic cell comprising a photovoltaic cell element as defined above, and a first electrically conductive structure located on a first surface of the substrate and a second electrically conductive structure located on a second surface of the substrate, opposite the first surface.
- Figures 1 to 9 schematically illustrate the main steps of a mode of implementation of a method of manufacturing a photovoltaic cell element
- Figures 10 to 18 schematically illustrate other modes of implementation of a method of manufacturing a photovoltaic cell element.
- the initiator trench emerges in a main zone of the internal trench and the internal separation comprises a generation of a crack which propagates along the initiator trench and along the internal trench.
- the starter trench extends into the third part of the substrate, opening into the outer trench.
- the starter trench is partially formed in the second and third parts of the substrate.
- the starter trench extends in the second part of the substrate from the main zone towards a secondary zone of the internal trench, the starter trench also opening out into the secondary zone.
- the starter trench extends in the second and third parts of the substrate from a first zone of the outer trench towards a second zone of the outer trench, the starter trench also opening out into the first and second zones.
- the internal separation comprises a mechanical separation of the third part of the substrate into at least two distinct portions of the substrate so as to obtain at least two photovoltaic cell elements respectively from said at least two distinct portions of the substrate.
- the method comprises a connection between at least two distinct portions of the substrate to provide the same photovoltaic cell element.
- the initiating trench is partially formed in the third part of the substrate by opening into the outer trench and the internal separation includes generation of a crack which propagates along the inner trench.
- At least one trench among the external, internal and primer trenches is a trench made in a non-through manner within the substrate.
- the generation of the internal trench forms a closed internal contour.
- the generation of the outer trench forms a closed outer contour.
- the generation of the seed trench creates a partly straight seed trench.
- the method comprises, after the generation of the external trench and before the generation of the starter trench, a so-called external separation, comprising a mechanical separation of the first part with the third part.
- the method comprises, after the internal separation, a so-called external separation, comprising a mechanical separation of the first part with the third part.
- the method comprises, before the external separation, a generation of an initial trench on the surface of the substrate, in the first part of the substrate and opening into the external trench.
- the method comprises, after the supply of the substrate and before the internal separation, a generation of an additional trench on the surface of the substrate and in the second part of the substrate to form an additional contour delimiting a fourth part of the substrate inside the additional contour, and a mechanical separation of the fourth part with the second part.
- the starter trench emerges in the internal trench and in the additional trench.
- FIGS. 1 to 18 the main steps of a method for manufacturing at least one photovoltaic cell element 1 to 3 have been represented.
- a cell element 1 to 3 is intended to manufacture a photovoltaic cell 30, in particular a very high efficiency cell of the HET or TOPCon type.
- the method comprises a supply of a photovoltaic cell substrate 4 configured to generate electrons on reception of light radiation, illustrated in FIG. 1.
- the dimensions of the substrate 4, in length along an axis X, and in width along a Y axis perpendicular to the X axis, are at least greater than those of the elements 1 to 3 to be manufactured.
- the substrate 4 can come from a "wafer", in English, that is to say a slice or a plate of a monocrystalline semiconductor material, preferably silicon, used to manufacture microelectronic components. After a cleaning step, layers of amorphous silicon can be deposited on each surface of the wafer. For example, the thickness of the substrate 4, along an axis Z perpendicular to the axes X and Y, is between 70 and 200 ⁇ m.
- the method includes generation of a so-called external trench 10 and a generation of a so-called internal trench 11, as shown in Figure 2.
- the outer trench 10 is made on a first surface 5 of the substrate 4 to form an outer contour delimiting a first part 20 of the substrate 4 outside the outer contour.
- the internal trench 11 is made on the first surface 5 of the substrate 4 to form an internal contour delimiting a second part
- the internal trench 11 can be made after, or before, the making of the external trench 10.
- FIG. 2 an example has been shown in which several internal trenches 11 and several external trenches 10 are generated, so as to generate several third parts 22 from the same substrate 4.
- the method comprises a generation of a seed trench 12 on the first surface 5 of the substrate 4, as illustrated in FIGS. 8 and 10 to 15, the seed trench 12 being formed at least partially in at least a part of the substrate 4 among the second and third parts 21, 22 of the substrate 4.
- the starter trench 12 is intended to facilitate mechanical separation of the second and third parts 21, 22.
- the starter trench 12 can be made before or after the outer 10 and inner 11 trenches have been made, or after one of the outer 10 or inner 11 trenches.
- the method further comprises a so-called internal separation S1, as illustrated in FIG. 9.
- the internal separation S1 comprises a mechanical separation of the second part 21 with the third part 22 so as to obtain at least one photovoltaic cell element 1 at 3 from the third part 22 of the substrate 4.
- the internal separation S1 comprises a generation of a crack which propagates at least along the internal trench 11 and causes the physical separation of the second part 21 with the third part 22.
- a mechanical separation leads to a physical separation of two elements.
- a physical separation of two elements makes it possible to obtain two elements distinct from each other.
- the internal separation S1 therefore causes a physical separation of the second part 21 with the third part 22 so as to obtain a third part
- the starter trench 12 makes it possible to facilitate the internal separation S1. More particularly, the starter trench 12 makes it possible to limit the formation of cracks at the level of the third part 22, also denoted the active part, that is to say the part of the substrate 4 intended to manufacture the photovoltaic cell element 1 to 3.
- One cracking corresponds to an untimely cracking on the surface of the substrate 4, can greatly reduce the capacities of the third part 22 or break the photovoltaic cell 1 to 3 in the case where the cracks are too great. Indeed, during the internal separation S1 and in the absence of the starter trench 12, cracks can spread at the level of the third part 22.
- the starter trench 12 thus makes it possible to limit the rate of breakage of the third part 22 during the internal separation S1.
- an element 1 to 3 which may have an unconventional geometric shape, such as of the round, triangle, ring, hexagon type, etc., as illustrated in FIG. 18.
- an unconventional geometric shape such as of the round, triangle, ring, hexagon type, etc.
- a quadrilateral shape such as a square, rectangle, or diamond.
- an element having a recessed part that is to say a free space devoid of material, in the heart of element 1 to 3.
- At least one trench among the external 10, internal 11 and primer 12 trenches is a trench made in a non-through manner within the substrate 4.
- the trenches 10 to 12 are non-through within the substrate.
- non-through trench is meant a trench having a depth within the substrate 4, along the Z axis, of between 1/3 and % of the thickness of the substrate 4, preferably of between 14 and % of the thickness of the substrate 4.
- a width of a trench 10 to 12, taken along the X axis can be between 5 ⁇ m and 50 ⁇ m, preferably between 10 ⁇ m and 25 ⁇ m.
- the starter trench 12 makes it possible to avoid making internal and external trenches 10, 11 crossing, or more generally makes it possible to reduce the depth of the internal and external trenches 10 and 11 necessary for an easier separation of the second and third parts 21 and 22 while minimizing the generation of cracks or untimely breakage and the degradation of the performance of the photovoltaic cells by the method of generating the trenches.
- trenches 10 to 12 are made from a laser. The starter trench 12 therefore makes it possible to reduce the energy of the laser used to produce the trenches 10 to 12 and to limit the associated degradation.
- the internal and external trenches 10, 11 are made from a laser whose wavelength is green, for example the wavelength is equal to 532 nm, the speed is included between 10 and 25 mm/s and the power is between 2.2 and 2.8 W.
- the outer and inner trenches 10, 11 are generated using four to eight successive passes of the laser.
- the seed trench 12 it is possible to use a laser whose wavelength is green, for example the wavelength is equal to 532 nm, the speed is between 20 and 25 mm/s, the power is between 2.9 and 3.1 W, with two to three successive passages of the laser.
- the primer trench 12 makes it possible to limit the number of passes of the laser to make the trenches 10 to 12 to limit untimely degradations on the substrate 4. It is possible, for example, to use laser powers greater than 3 W.
- the generation of the seed trench 12 also makes it possible to reduce the depth of the outer 10 and inner 11 trenches, and also of the seed trench 12 itself, and therefore to reduce the energy of the laser used in reducing the number of passes.
- the leader trench 12 therefore makes it possible to reduce the energy of the laser used, in particular by reducing the number of passages and by increasing the speed of passages, while preserving the electrical performance of the third part 22.
- the generation of the internal trench 11 forms a closed internal contour.
- the generation of the outer trench 10 forms a closed outer contour.
- the generation of the seed trench 12 creates a partly rectilinear seed trench 12.
- the starter trench 12 is straight. Thus, it is not necessary to stop the firing of the laser to change direction.
- FIGS. 8 and 11 to 15 various embodiments of a starter trench 12 have been shown, in which the starter trench 12 opens out into a main zone 13 of the internal trench 11 and the internal separation S1 comprises generation of a crack which propagates along the initiator trench 12 and along the internal trench 11.
- the generation of the initiator trench 12 can be carried out between the step of generation of several third parts 22 from the same substrate 4, as illustrated in FIG. 2, and the so-called external separation step, illustrated in FIG. 7.
- the primer trench 12 is partially formed in the second and third parts 21, 22 of the substrate 4.
- the starter trench 12 extends in the second part of the substrate from the main zone 13 towards a secondary zone 14 of the internal trench 11, the starter trench 12 also opening out into the secondary zone 14.
- the primer trench 12 is partially formed in the third part 22 of the substrate 4 by opening out into the outer trench 10 and the internal separation S1 comprises a generation of a crack which propagates along the internal trench 11.
- the primer trench 12 also opening out into the first and second zones 15, 16.
- the internal separation S1 comprises a mechanical separation of the third part 22 of the substrate 4 into at least two distinct portions 23, 24 of the substrate 4 so as to obtain at least two photovoltaic cell elements 2, 3 respectively from said at least least two distinct portions 23, 24 of the substrate 4.
- the method can further comprise a connection S3 between at least two distinct portions 23, 24 of the substrate 4 to provide the same photovoltaic cell element 1.
- a so-called external separation S2 comprising a mechanical separation of the first part 20 with the third part 22.
- the external separation S2 comprises a generation of a crack which propagates at least the along the outer trench 10 and causes the physical separation of the first part 20 with the third part 22.
- the external separation S2 therefore causes a physical separation of the first part 20 with the third part 22 so as to obtain a third part 22 distinct of the first part 20.
- the external separation S2 is carried out after the generation of the external trench 11.
- the external separation S2 is carried out before the generation of the primer trench 12. In order to facilitate the physical separation of the first part 20 with the third part
- the method may comprise, before the external separation S2, a generation of an initial trench 17 on the first surface 5 of the substrate 4, in the first part 20 of the substrate 4 and opening into the external trench 11, as illustrated in the Figures 3 and 18.
- the initial trench 17 provides a local fracture initiation to facilitate the propagation of the crack along the initial trench 17.
- the initial trench 17 therefore facilitates the physical separation of the first part 20 of substrate 4, for example to obtain a sample comprising a substrate 4, several internal trenches 11 and several external trenches 10, as illustrated in FIG. 4.
- the generation of the initial trench 17 can be carried out before, or after, the generation of the trench internal 11.
- the generation of the internal trench 11 is performed after the external separation S2. Indeed, this makes it possible to limit the propagation of untimely cracks and to facilitate the internal separation S1.
- Figure 5 there is shown an embodiment, in which the method comprises a generation of additional trenches 60 to facilitate the separation of the substrate 4 into several devices, each device comprising at least a third part 22.
- the generation of the seed trench 12 is carried out during the step of obtaining a sample, as illustrated in FIG. 4, or during the step of generating additional trenches 60, illustrated in Figure 5.
- the method comprises, after the supply of the substrate 4 and before the generation of the primer trench 12, a generation of a trench additional 18 on the surface 5 of the substrate 4 and in the second part 21 of the substrate 4 to form an additional contour delimiting a fourth part 25 of the substrate 4 inside the additional contour, and a mechanical separation S4 of the fourth part 25 with the second part 21.
- the crack can propagate inside the free space left after the removal of the fourth part 25.
- the initiating trench 12 opens out into the internal trench 11 and into the additional trench 18, as illustrated in FIG. 14. This promotes the propagation of the crack in the free space which does not correspond not to an area of interest to manufacture a photovoltaic cell element 1 to 3.
- the method for manufacturing a photovoltaic cell element 1 to 3 makes it possible to manufacture an element 1 to 3 comprising a photovoltaic cell substrate 4 configured to generate electrons on reception of light radiation, an external contour and an internal contour delimiting the substrate 4, in particular a surface 5 of the substrate 4, so that the element 1 to 3 is devoid of material outside the external contour and inside the internal contour and the substrate comprises a trench of primer 12 formed at least partially on the surface 5 of the substrate.
- Such an element 1 to 3 makes it possible to provide a method for manufacturing a photovoltaic cell 30.
- the method for manufacturing the cell 30 comprises manufacturing at least one photovoltaic cell element 1 to 3 and metallization, after supplying of the substrate 4, the metallization comprising a formation of a first electrically conductive structure on a first surface 5 of the substrate 4 and of a second electrically conductive structure on a second surface 50 of the substrate 4, opposite to the first surface 5.
- the first and second electrically conductive structures are not shown for the purposes of simplification.
- the metallization can be carried out before the generation of the internal 11 and external 10 trenches, or after the manufacture of the photovoltaic cell element 1 to 3.
- the first electrically conductive structure can be made based on silver, printed on the first surface 5, by screen printing.
- the second electrically conductive structure may be a transparent conductive layer on the second surface 50.
- photovoltaic cell elements having unconventional shapes, in particular hollow ones.
- Such elements are particularly suitable for manufacturing photovoltaic cells, in particular with very high yields, intended to be integrated into small devices, such as smart portable telephones, etc.
Landscapes
- Photovoltaic Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2113566A FR3130451B1 (fr) | 2021-12-15 | 2021-12-15 | élément de cellule photovoltaïque, cellule photovoltaïque et procédés de fabrication de tels élément et cellule |
| PCT/EP2022/084601 WO2023110540A1 (fr) | 2021-12-15 | 2022-12-06 | Elément de cellule photovoltaïque, cellule photovoltaïque et procédés de fabrication de tels élément et cellule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4449506A1 true EP4449506A1 (fr) | 2024-10-23 |
Family
ID=81581278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22823603.0A Pending EP4449506A1 (fr) | 2021-12-15 | 2022-12-06 | Elément de cellule photovoltaïque, cellule photovoltaïque et procédés de fabrication de tels élément et cellule |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250048770A1 (fr) |
| EP (1) | EP4449506A1 (fr) |
| FR (1) | FR3130451B1 (fr) |
| TW (1) | TW202333388A (fr) |
| WO (1) | WO2023110540A1 (fr) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7170001B2 (en) * | 2003-06-26 | 2007-01-30 | Advent Solar, Inc. | Fabrication of back-contacted silicon solar cells using thermomigration to create conductive vias |
| GB0807211D0 (en) * | 2008-04-21 | 2008-05-28 | Univ Denmark Tech Dtu | Photvolotaic device |
| KR101103706B1 (ko) * | 2009-12-23 | 2012-01-11 | 주식회사 효성 | 후면접합 태양전지의 제조방법 |
| CN107845688A (zh) * | 2016-09-19 | 2018-03-27 | 联相光电股份有限公司 | 太阳能电池镂空电路及太阳能电池显示装置 |
| US11145774B2 (en) * | 2018-05-30 | 2021-10-12 | Solar Inventions Llc | Configurable solar cells |
| CN110176506B (zh) * | 2019-05-31 | 2024-05-07 | 信利半导体有限公司 | 薄膜光伏电池串联结构及薄膜光伏电池串联的制备工艺 |
-
2021
- 2021-12-15 FR FR2113566A patent/FR3130451B1/fr active Active
-
2022
- 2022-12-06 EP EP22823603.0A patent/EP4449506A1/fr active Pending
- 2022-12-06 US US18/719,589 patent/US20250048770A1/en active Pending
- 2022-12-06 WO PCT/EP2022/084601 patent/WO2023110540A1/fr not_active Ceased
- 2022-12-14 TW TW111147893A patent/TW202333388A/zh unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US20250048770A1 (en) | 2025-02-06 |
| WO2023110540A1 (fr) | 2023-06-22 |
| TW202333388A (zh) | 2023-08-16 |
| FR3130451B1 (fr) | 2025-03-14 |
| FR3130451A1 (fr) | 2023-06-16 |
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