CN201887050U - Solar battery with laser-sintered electrodes - Google Patents
Solar battery with laser-sintered electrodes Download PDFInfo
- Publication number
- CN201887050U CN201887050U CN2010206665152U CN201020666515U CN201887050U CN 201887050 U CN201887050 U CN 201887050U CN 2010206665152 U CN2010206665152 U CN 2010206665152U CN 201020666515 U CN201020666515 U CN 201020666515U CN 201887050 U CN201887050 U CN 201887050U
- Authority
- CN
- China
- Prior art keywords
- laser
- battery
- main body
- passivation layer
- crystal silicon
- 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.)
- Expired - Fee Related
Links
- 239000013078 crystal Substances 0.000 claims abstract description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000002161 passivation Methods 0.000 claims abstract description 11
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 239000010703 silicon Substances 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 238000000608 laser ablation Methods 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000415 inactivating effect Effects 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
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- 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
- Y02E10/547—Monocrystalline silicon PV cells
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a solar battery with laser-sintered electrodes. The solar battery comprises a crystal silicon battery main body with an insulating passivation layer arranged on the surface, and is characterized in that laser-sintered electrodes are arranged on both the battery main body and the insulating passivation layer on the battery main body. In the utility model, as the back side of the battery adopts a point-contact structure, metal composition is considerably reduced, and the passivation performance of the back side of the battery is considerably improved. The technology overcomes the shortcoming that the composition of the back side of a traditional battery is high.
Description
Technical field
The utility model relates to the battery technology field, relates to a kind of solar cell more specifically.
Background technology
Solar cell is that a kind of photovoltaic effect of utilizing becomes the device of electric energy to transform light energy, is photovoltaic device again.Converting solar energy the solid semiconductor device of electric energy to, claim solar cell or photocell again, is the critical elements of solar battery array power-supply system.Solar cell mainly contains monocrystalline silicon battery and monocrystalline GaAs battery etc.The stock of single crystal silicon solar cell is that purity reaches 0.999999, the p type single crystal silicon of resistivity more than 10 Europe centimetre; comprise parts such as p-n junction, electrode and antireflective coating; be subjected to plane of illumination to add printing opacity cover plate (as quartzy or ooze cerium glass) protection, prevent that battery is subjected to the radiation damage of high energy electron and proton in the Van Allen belt of outer space.But conventional batteries has the compound high shortcoming in the back side.
Summary of the invention
The purpose of this utility model is exactly that a kind of simple and reasonable, the metal composite that provide for the deficiency that solves prior art reduce the solar cell of the laser sintered electrode that the inactivating performance of back side battery increases considerably significantly.
The utility model is to adopt following technical solution to realize above-mentioned purpose: a kind of solar cell of laser sintered electrode, comprise the crystal silicon battery main body, the crystal silicon battery body surfaces is provided with insulating passivation layer, it is characterized in that, described battery main body and on insulating passivation layer be provided with the electrode that is carved into by laser.
As further specifying of such scheme, described crystal silicon battery body surfaces forms low series resistance, and the ohmic contact of low series resistance is to utilize the yag crystal laser ablation deposition at silica or the thin film aluminum metal above the silicon nitride.
The beneficial effect that the utility model adopts above-mentioned technical solution to reach is:
The utility model utilizes the yag crystal laser ablation deposition at silica or the thin film aluminum metal above the silicon nitride, realizes the ohmic contact of low series resistance.Because back side battery has adopted the some contacting structure, metal composite reduces significantly, and the inactivating performance of back side battery increases considerably, this technology has solved the compound high defective in the conventional batteries back side, utilize this technology on P type substrate, cell thickness reduces, and transfer ratio reaches more than 19%.
Description of drawings
Fig. 1 is the utility model structural representation;
Description of reference numerals: 1, crystal silicon battery main body 2, insulating passivation layer 3, electrode.
Embodiment
As shown in Figure 1, the solar cell of a kind of laser sintered electrode of the utility model comprises crystal silicon battery main body 1, and crystal silicon battery main body 1 surface is provided with insulating passivation layer 2, battery main body and on insulating passivation layer 2 be provided with the electrode 3 that is carved into by laser.In the present embodiment, use laser that the insulating passivation layer between silicon chip and aluminium antapex hit is punctured, simultaneously aluminium is melted to form and reflux, constitute current paths thereby form a large amount of fine and close via holes.
Above-described only is preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (2)
1. the solar cell of a laser sintered electrode comprises the crystal silicon battery main body, and the crystal silicon battery body surfaces is provided with insulating passivation layer, it is characterized in that, described battery main body and on insulating passivation layer be provided with the electrode that is carved into by laser.
2. the solar cell of laser sintered electrode according to claim 1, it is characterized in that, described crystal silicon battery body surfaces forms low series resistance, and the ohmic contact of low series resistance is to utilize the yag crystal laser ablation deposition at silica or the thin film aluminum metal above the silicon nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206665152U CN201887050U (en) | 2010-12-18 | 2010-12-18 | Solar battery with laser-sintered electrodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206665152U CN201887050U (en) | 2010-12-18 | 2010-12-18 | Solar battery with laser-sintered electrodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201887050U true CN201887050U (en) | 2011-06-29 |
Family
ID=44184599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206665152U Expired - Fee Related CN201887050U (en) | 2010-12-18 | 2010-12-18 | Solar battery with laser-sintered electrodes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201887050U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104704639A (en) * | 2012-10-04 | 2015-06-10 | 信越化学工业株式会社 | Solar cell manufacturing method |
| CN111554755A (en) * | 2020-03-27 | 2020-08-18 | 天津爱旭太阳能科技有限公司 | Method for metalizing electrode of solar cell |
-
2010
- 2010-12-18 CN CN2010206665152U patent/CN201887050U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104704639A (en) * | 2012-10-04 | 2015-06-10 | 信越化学工业株式会社 | Solar cell manufacturing method |
| CN104704639B (en) * | 2012-10-04 | 2017-02-22 | 信越化学工业株式会社 | Manufacturing method of solar cell |
| CN111554755A (en) * | 2020-03-27 | 2020-08-18 | 天津爱旭太阳能科技有限公司 | Method for metalizing electrode of solar cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |