CN202695467U - Solar assembly with low cost - Google Patents
Solar assembly with low cost Download PDFInfo
- Publication number
- CN202695467U CN202695467U CN201220413180.2U CN201220413180U CN202695467U CN 202695467 U CN202695467 U CN 202695467U CN 201220413180 U CN201220413180 U CN 201220413180U CN 202695467 U CN202695467 U CN 202695467U
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- layer
- type silicon
- electrode layer
- solar components
- anodal
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Abstract
The utility model relates to a solar assembly with low cost. The solar assembly comprises a negative electrode layer, an N type silicon layer, a P type silicon layer, and a positive electrode layer, wherein the above-mentioned layers are successively stacked. A plurality of small holes are uniformly arranged on the positive electrode layer; and silver layers are arranged inside all the small holes. According to the utility model, the positive electrode layer is an aluminium oxide layer and the multiple small holes are uniformly arranged on the positive electrode layer, wherein the silver layers are arranged inside the all the small holes. Besides, the aluminium oxide is employed to form the positive electrode layer and the small holes with silvers are uniformly arranged on the collection layer, so that the conductivity is improved and the silver paste usage can also be saved to reduce the manufacturing cost.
Description
Technical field
The utility model relates to technical field of solar batteries, particularly a kind of cheaply solar components.
Background technology
Solar module also is solar panel, is the core in the solar power system, also is most important part in the solar power system.Solar cell is the device that directly light energy conversion is become electric energy by photoelectric effect or Photochemical effects.Solar cell more and more receives people's concern as green energy resource.The positive electrode of traditional solar module adopts silver or aluminium to print grid line, and cost is higher, and uses the electric conductivity of aluminium oxide not good.
The utility model content
The purpose of this utility model is to overcome the defective that prior art exists, and a kind of cheaply solar components simple for production is provided.
The technical scheme that realizes the utility model purpose is: a kind of cheaply solar components has the negative electrode layer, N-type silicon layer, P type silicon layer and the anodal layer that stack gradually; Described anodal layer is alumina layer, is evenly equipped with some apertures on the anodal layer; Described each aperture is built-in with silver layer.
Also be provided with the first silicon nitride anti-reflecting film layer between the described negative electrode layer of technique scheme and the N-type silicon layer.
Also be provided with the silicon dioxide passivation film between the described silicon nitride anti-reflecting film layer of technique scheme and the N-type silicon layer.
Also be provided with the second silicon dioxide passivation film between technique scheme described P type silicon layer and the anodal layer.
The described negative electrode layer of technique scheme is silver layer.
The surface of the described negative electrode layer of technique scheme is provided with main grid and the secondary grid vertical with main grid and that equidistantly distribute that form by the half tone graphic printing.
Have back electrode and back of the body electric field on the described anodal layer of technique scheme.
After adopting technique scheme, the utlity model has following positive effect:
(1) anodal layer of the present utility model is alumina layer, is evenly equipped with some apertures on the anodal layer; Described each aperture is built-in with silver layer; Adopting aluminium oxide is anodal layer, and all arranges the aperture of silver on the collection layer, has not only improved conductivity, has saved simultaneously the use of silver-colored slurry, has reduced cost of manufacture.
(2) the utility model adopts the PECVD silicon nitride film as the antireflection film layer of solar components, Main Function is to reduce reflection of light, and silicon nitride film contains a large amount of hydrogen, the surperficial dangling bonds in can well passivation silicon, thus improved carrier mobility; Simultaneously, deposition of silica film between silicon nitride film and N-type silicon, can more effective minimizing incident light in the reflection loss of solar cell surface, improve the amount that solar components absorbs sunlight, and can allow solar components absorb whole sunlight spectrum from all angles, thereby the economic benefit of solar power station is greatly improved.
(3) be provided with the second silicon dioxide passivation film between anodal layer of the present utility model and the P type silicon layer; Silicon dioxide has the effect of gettering, passivation, can improve reflection efficiency.
Description of drawings
Content of the present utility model is easier to be expressly understood in order to make, and the below is described in further detail the utility model, wherein according to specific embodiment also by reference to the accompanying drawings
Fig. 1 is structural representation of the present utility model;
1. negative electrode layers among the figure, 11. main grids, 12. secondary grid, 2.N type silicon layer, 3.P type silicon layer, 4. anodal layer, 41. back electrodes, 42. back of the body electric field, 5. silicon nitride anti-reflecting film layer, 6. the first silicon dioxide passivation film, 7. the second silicon dioxide passivation films.
Embodiment
(embodiment 1)
See Fig. 1, the utlity model has the negative electrode layer 1, N-type silicon layer 2, P type silicon layer 3 and the anodal layer 4 that stack gradually; Negative electrode layer 1 is silver layer, and the surface of negative electrode layer 1 is provided with the main grid 11 that forms by the half tone graphic printing and and the equidistantly secondary grid 12 of distribution vertical with main grid 11; Also be provided with silicon nitride anti-reflecting film layer 5 between negative electrode layer 1 and the N-type silicon layer 2; Be provided with the first silicon dioxide passivation film 6 between silicon nitride anti-reflecting film layer 5 and the N-type silicon layer 2; Anodal layer 1 is alumina layer, has back electrode 41 and back of the body electric field 42 on the anodal layer 4; Be evenly equipped with some apertures on the anodal layer 1; Each aperture is built-in with silver layer; Be provided with the second silicon dioxide passivation film 7 between P type silicon layer 3 and the anodal layer 4.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. a solar components cheaply has the negative electrode layer (1), N-type silicon layer (2), P type silicon layer (3) and the anodal layer (4) that stack gradually; It is characterized in that: described anodal layer (1) is alumina layer, is evenly equipped with some apertures on the anodal layer (1); Described each aperture is built-in with silver layer.
2. cheaply solar components according to claim 1 is characterized in that: also be provided with silicon nitride anti-reflecting film layer (5) between described negative electrode layer (1) and the N-type silicon layer (2).
3. cheaply solar components according to claim 1 is characterized in that: also be provided with the first silicon dioxide passivation film (6) between described silicon nitride anti-reflecting film layer (5) and the N-type silicon layer (2).
4. cheaply solar components according to claim 1 is characterized in that: also be provided with the second silicon dioxide passivation film (7) between described P type silicon layer (3) and the anodal layer (4).
5. according to claim 1 to 4 arbitrary described cheaply solar components, it is characterized in that: described negative electrode layer (1) is silver layer.
6. cheaply solar components according to claim 5 is characterized in that: the surface of described negative electrode layer (1) is provided with the main grid (11) that forms by the half tone graphic printing and and the equidistantly secondary grid (12) of distribution vertical with main grid (11).
7. cheaply solar components according to claim 6 is characterized in that: have back electrode (41) and back of the body electric field (42) on the described anodal layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413180.2U CN202695467U (en) | 2012-08-20 | 2012-08-20 | Solar assembly with low cost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413180.2U CN202695467U (en) | 2012-08-20 | 2012-08-20 | Solar assembly with low cost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695467U true CN202695467U (en) | 2013-01-23 |
Family
ID=47551041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220413180.2U Expired - Lifetime CN202695467U (en) | 2012-08-20 | 2012-08-20 | Solar assembly with low cost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695467U (en) |
-
2012
- 2012-08-20 CN CN201220413180.2U patent/CN202695467U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |