CN203503665U - Solar cell glass cover plate - Google Patents
Solar cell glass cover plate Download PDFInfo
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- CN203503665U CN203503665U CN201320473722.XU CN201320473722U CN203503665U CN 203503665 U CN203503665 U CN 203503665U CN 201320473722 U CN201320473722 U CN 201320473722U CN 203503665 U CN203503665 U CN 203503665U
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- magnesium fluoride
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Abstract
The utility model relates a solar cell glass cover plate. The glass cover plate comprises a magnesium fluoride film on the side of a glass substrate, and is characterized in that a nanoscale ITO film is vapor plated and sintered on the magnesium fluoride film, multi-layer structure electrodes are vapor plated at two corners of the ITO film. According to the utility model, by an automatic electron beam heating vacuum vapor plating machine, the ITO film with a nanoscale thickness is vapor plated on the magnesium fluoride film, having an average spectrum transmitance of near 93% within a wave band of 400-1,800nm, so that the cell array is prevented from damage of severe environment, and an anti-irradiation effect is obtained without reducing the photoelectric conversion efficiency of the cell array; the ITO film is annealed by sintering, being prevented from shedding; and a titanium-palladium-silver multilayer metalized electrode structure is adopted, so that the tension strength of the electrode is greatly increased, and the reliability of the solar cell working in various complex environments is ensured.
Description
Technical field
The utility model belongs to technical field of solar cells, particularly relates to a kind of solar cell cover glass.
Background technology
Solar cell is transform light energy to be become to the power supply of electric energy, can be widely used in each field, has reliability Gao ﹐ life-span Chang ﹐ conversion efficiency advantages of higher.In order to guarantee that solar cell light receiving surface avoids the infringement of extraneous adverse circumstances, and play the effect of anti-irradiation, conventionally at solar cell light receiving surface, be covered with cover glass.
At present, cover the cover glass of solar cell light receiving surface, mostly adopt the borosilicate of doping 5% ceria as glass substrate, because its refractive index is 1.526, the reflection loss of incident sunlight at interface is 4%, at glass substrate surface deposition one deck, play the magnesium fluoride film of anti-reflection effect, make incident sunlight be reduced to 1% in the reflection loss at interface.But because magnesium fluoride film is non-conductive, make solar cell have the inhomogeneous problem of charging, for this reason at magnesium fluoride film surface evaporation one deck electric conductivity and good tin indium oxide (ITO) film of transparency.And ITO material exist at visible light wave range, sunlight is had absorb and and magnesium fluoride material between there is matching problem, when evaporation is in the blocked up absorption efficiency of battery to light that can reduce of the ITO on magnesium fluoride film surface film, and affect the photoelectric conversion efficiency of battery battle array; ITO is lepthymenia easily to come off on magnesium fluoride film, has reduced the reliability of solar cell work.
Summary of the invention
The utility model provides a kind of photoelectric conversion efficiency, ITO film that does not affect battery battle array not come off for solving the technical problem existing in known technology, guarantees a kind of solar cell cover glass that solar cell can reliably working in adverse circumstances.
The technical scheme that the present invention takes is:
A solar cell cover glass, comprises that evaporation, at the magnesium fluoride film of glass substrate one side, is characterized in: on magnesium fluoride film, evaporation sintering has nanoscale ito thin film, and two jiaos of place's evaporations of ito thin film have sandwich construction electrode; The thickness of described nanoscale ito thin film is 8-15nm; Described sandwich construction electrode is titanium-palladium-silver electrode; In described titanium-palladium-silver electrode, the thickness of titanium is that the thickness of 300nm, palladium is that 100nm, silver-colored thickness are 5000nm; The thickness of described magnesium fluoride film is 50nm; Described glass substrate is rectangle glass substrate.
Advantage and the good effect that the utlity model has are:
1, the utility model adopts full-automatic electronic bundle heating, vacuum evaporator, on magnesium fluoride film, evaporation goes out the nanoscale ito thin film that thickness is 8-15nm, in 400nm-1800nm wavelength band, averaged spectrum transmitance approaches 93%, both protected battery battle array, make it not be subject to the infringement of adverse circumstances, effectively play the effect of anti-irradiation, can not cause again because affecting battery and the absorption efficiency of light be reduced to the photoelectric conversion efficiency of battery battle array;
2, the utility model carries out annealing in process by sintering to ito thin film, guarantees the binding ability between ito thin film and magnesium fluoride film, and ito thin film does not come off, and has improved the firmness of ito thin film.
3, the utility model adopts titanium-palladium-Yin multilevel metallization electrode structure, has improved the adhesive ability between electrode and ito thin film, has significantly improved the Tensile strength of electrode, has guaranteed the reliability that solar cell is worked in various complex environments.
Accompanying drawing explanation
Fig. 1 is a kind of solar cell cover glass of the utility model structural representation;
Fig. 2 is the schematic top plan view of Fig. 1.
In figure, 1-glass substrate, 2-magnesium fluoride film, 3-ITO film, 4-electrode.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
A solar cell cover glass, comprises that evaporation is at the magnesium fluoride film of glass substrate one side.
Innovative point of the present utility model is:
On magnesium fluoride film, evaporation sintering has nanoscale ito thin film, and two jiaos of place's evaporations of ito thin film have sandwich construction electrode.
Innovative point of the present utility model also comprises:
The thickness of described nanoscale ito thin film is 8-15nm.
Described sandwich construction electrode is titanium-palladium-silver electrode.
In described titanium-palladium-silver electrode, the thickness of titanium is that the thickness of 300nm, palladium is that 100nm, silver-colored thickness are 5000nm.
The thickness of described magnesium fluoride film is 50nm.
Embodiment:
Manufacturing process of the present utility model:
On rectangle borosilicate glass substrate 1, evaporation goes out the magnesium fluoride film 2 of 50nm, then carries out the making of following steps:
(1) evaporation ito thin film
By indium sesquioxide (In
2o
3) powder Uniform Doped 5% tin oxide (SnO
2) powder formation tin indium oxide (ITO) material, ITO material is put into clean crucible, crucible is inserted in evaporator, heating-up temperature 250-300 ℃, evaporation rate 0.5-0.8nm/s, oxygenation content 30-50mbar that evaporator is set, ITO material goes out with electron beam form evaporation on magnesium fluoride film the ito thin film 3 that 12nm is thick;
(2) ito thin film annealing in process
There is the glass substrate of ito thin film to be placed in the pallet of heating furnace evaporation, in atmosphere, carry out 200-350 ℃, the annealing in process of 30-40min, naturally cool to after room temperature, complete the annealing in process process of ito thin film;
(3) electrode evaporation
By putting into vacuum chamber through the glass substrate of ito thin film annealing in process, Titanium, Metal Palladium, argent are put into crucible; Adopt automatic evaporator to locate two jiaos of the ito thin films of glass substrate Titanium, the Metal Palladium of 100nm and the argent of 5000nm that evaporation thickness is 300nm successively, two jiaos of ito thin films are made metallization titanium-palladium-Yin sandwich construction electrode 4, make solar cell cover glass as shown in Figure 1.
Proving test:
1, spectral transmittance test
With spectrophotometer, by adjusting wavelength, the spectral transmittance test of a kind of solar cell cover glass that the ito thin film thickness that the utility model is made is 12nm shown in carry out table 1:
Table 1: spectral transmittance test data
| Wavelength (nm) | 400 | 500 | 600 | 900 | 1100 | 1200-1800 |
| Transmitance (%) | 88.96 | 92.32 | 93.14 | 94.36 | 94.41 | 94.21 |
Result of the test shows: in 400nm-1800nm wavelength band, averaged spectrum transmitance approaches 93%, has significantly improved the absorption efficiency of battery to light.
2, ito thin film firmness test
The good ITO film glass cover plate of evaporation is placed in to boiling water and boils 10-15min, after taking-up, dry up, with rubber wiping film surface 30-50 time repeatedly, the situation of then observing ITO film, finds the phenomenon that ITO film does not have peeling and comes off.
Result of the test shows: the adhesion between ito thin film and magnesium fluoride film is strong, and ito thin film does not come off, and has effectively improved the firmness of ito thin film.
Although by reference to the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not departing from the scope situation that the utility model aim and claim protect, can also make a lot of forms, within these all belong to protection range of the present utility model.
Claims (1)
1. a solar cell cover glass, comprises that evaporation, at the magnesium fluoride film of glass substrate one side, is characterized in that: on magnesium fluoride film, evaporation sintering has nanoscale ito thin film, and two jiaos of place's evaporations of ito thin film have sandwich construction electrode; The thickness of described nanoscale ito thin film is 8-15nm; Described sandwich construction electrode is titanium-palladium-silver electrode; In described titanium-palladium-silver electrode, the thickness of titanium is that the thickness of 300nm, palladium is that 100nm, silver-colored thickness are 5000nm; The thickness of described magnesium fluoride film is 50nm; Described glass substrate is rectangle glass substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473722.XU CN203503665U (en) | 2013-08-05 | 2013-08-05 | Solar cell glass cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473722.XU CN203503665U (en) | 2013-08-05 | 2013-08-05 | Solar cell glass cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203503665U true CN203503665U (en) | 2014-03-26 |
Family
ID=50334619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320473722.XU Expired - Fee Related CN203503665U (en) | 2013-08-05 | 2013-08-05 | Solar cell glass cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203503665U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741915A (en) * | 2014-12-08 | 2016-07-06 | 天津恒电空间电源有限公司 | Multilayer metal electrode capable of being firmly combined with glass |
| CN105742167A (en) * | 2014-12-08 | 2016-07-06 | 天津恒电空间电源有限公司 | Preparation method of multilayer metal electrode capable of being firmly combined with glass |
-
2013
- 2013-08-05 CN CN201320473722.XU patent/CN203503665U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741915A (en) * | 2014-12-08 | 2016-07-06 | 天津恒电空间电源有限公司 | Multilayer metal electrode capable of being firmly combined with glass |
| CN105742167A (en) * | 2014-12-08 | 2016-07-06 | 天津恒电空间电源有限公司 | Preparation method of multilayer metal electrode capable of being firmly combined with glass |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20170805 |
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| CF01 | Termination of patent right due to non-payment of annual fee |