CN203118959U - Solar cell - Google Patents
Solar cell Download PDFInfo
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- CN203118959U CN203118959U CN 201320016236 CN201320016236U CN203118959U CN 203118959 U CN203118959 U CN 203118959U CN 201320016236 CN201320016236 CN 201320016236 CN 201320016236 U CN201320016236 U CN 201320016236U CN 203118959 U CN203118959 U CN 203118959U
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- 239000000758 substrate Substances 0.000 claims abstract description 22
- 239000004065 semiconductor Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
An embodiment of the present invention discloses a solar cell, including a semiconductor substrate, a plurality of finger electrodes and a plurality of bus electrodes. The plurality of finger electrodes are disposed on one side surface of the semiconductor substrate. The plurality of bus electrodes are arranged on the surface at intervals, and at least one bus electrode comprises a plurality of conducting blocks. The conductive blocks are independent of each other and arranged on the surface along a first direction. Each conducting block is electrically connected with at least one of the plurality of finger electrodes. Therefore, the utility model discloses solar cell's manufacturing cost can be reduced.
Description
[technical field]
The utility model is relevant for a kind of solar cell, and particularly has at least a bus electrode to include the solar cell of several conductive area relevant for a kind of, and described a plurality of conductive area are arranged along first direction and arranged.
[background technology]
In recent years, because oil production rate reduces gradually and environmental consciousness is surging, in response to soaring oil prices and carbon reduction, countries in the world are looked for various possible alternative energy sources invariably energetically.For instance, solar power generation is a kind of transform light energy to be become the technology of electric energy, has safety, clean, can not threaten human and destroys the characteristic of environment, is used widely by the whole world at present.
Traditionally, solar cell is to connect face at p/n of sensitive surface formation of semiconductor substrate, and produces electron stream when sensitive surface receives luminous energy.In addition, solar cell can be formed with electrode respectively at sensitive surface and the shady face of substrate, and from the sensitive surface with shady face on electrode with output voltage, electric current.In general, when making solar cell, the electrode of sensitive surface is to form with the elargol printing, and the manufacturing cost of the use amount number of elargol and solar cell has very high relevance.
Accordingly, industry need design a kind of new solar cell, and the electrode pattern on the improvement sensitive surface with under the situation of the overall efficiency that does not influence solar cell, can reduce the use amount of elargol again.
[summary of the invention]
The purpose of this utility model is to propose a kind of solar cell, changed the electrode pattern on the sensitive surface, make a bus electrode to be made up of several conductive area separated from one another, described a plurality of conductive area are arranged along first direction and are arranged, thereby can reduce the use amount of elargol.
For reaching aforementioned purpose, the utility model provides a kind of solar cell, comprises semiconductor substrate, several finger electrodes and several bus electrodes.Described a plurality of finger electrode is arranged on the side surface of semiconductor substrate.Described a plurality of bus electrodes compartment of terrain is arranged at described surface, and at least one bus electrode includes several conductive area.Described a plurality of conductive area is independent mutually, and is arranged at described surface along the first direction arrangement.Each conductive area electrically connects one of them of described a plurality of finger electrodes at least.
In an example embodiment, described a plurality of bus electrodes have the first identical width, and described a plurality of bus electrode is of similar shape.In addition, described a plurality of conductive area is successively arranged along first direction and is arranged at described surface.In addition, at least one bus electrode, interval first distance between at least one conductive area and the adjacent conductive block, described first distance is greater than 0cm and less than 15cm.
In another example embodiment, at least one bus electrode has redundant electrode, and at least one conductive area electrically connects at least one redundant electrode.On the other hand, in another example embodiment, described redundant electrode does not connect described a plurality of conductive area.In addition, described a plurality of conductive area are arranged side by side along the some rows of first direction and are arranged at described surface, and second distance at interval between the parallel conductive area of adjacent two rows, second distance is greater than 0mm and less than 2mm.Wherein, described a plurality of bus electrodes are parallel to each other, and first direction is parallel to the bearing of trend of bus electrode.
In sum, solar cell of the present utility model wherein has at least a bus electrode to be made up of several conductive area separated from one another, and described a plurality of conductive area are arranged along first direction and arranged.Except the overall efficiency that does not influence solar cell, for the manufacturer of follow-up reprocessing, the course of processing of installing bus is also unaffected.Accordingly, the utility model has been by having changed the electrode pattern on the sensitive surface, thereby can reduce the use amount of elargol, just reduced the manufacturing cost of solar cell.
For enabling further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, but these explanations with appended graphic only be that the utility model is described, but not interest field of the present utility model is done any restriction.
[description of drawings]
Fig. 1 is the schematic top plan view that illustrates according to the solar cell of the utility model one example embodiment.
Fig. 2 is the partial schematic diagram that illustrates according to the solar cell of the utility model one example embodiment.
Fig. 3 is the partial schematic diagram that illustrates according to the solar cell of another example embodiment of the utility model.
Fig. 4 illustrates according to the utility model partial schematic diagram of the solar cell of an example embodiment again.
Fig. 5 is the partial schematic diagram that illustrates according to the solar cell of the another example embodiment of the utility model.
Fig. 6 illustrates according to the utility model partial schematic diagram of the solar cell of an example embodiment again.
[embodiment]
See also Fig. 1, Fig. 1 is the schematic top plan view that illustrates according to the solar cell of the utility model one example embodiment.As shown in Figure 1, solar cell 1 is to have semiconductor substrate 10, several finger electrodes 12 and several bus electrodes 14.Described finger electrode 12 and bus electrode 14 are to utilize wire mark printing or other suitable mode to be arranged on the side surface 10a of semiconductor substrate 10.In general, described surperficial 10a is the sensitive surface for solar cell 1, and semiconductor substrate 10 should be formed with p/n in surperficial 10a side and connect face, can produce voltage, electric current when making the surperficial 10a of semiconductor substrate 10 accept irradiation of sunlight.
What deserves to be mentioned is that though in the solar cell 1 that Fig. 1 illustrates, finger electrode 12 all is to be arranged in parallel to each other on the surperficial 10a, the utility model does not limit shape and the arrangement mode of finger electrode 12.For instance, finger electrode 12 must not be straight line (rectangular) shape, and can be designed to the inhomogeneous triangle of width, rhombus or have other that shape of radian is arranged.In addition, finger electrode 12 must not be to be arranged in parallel to each other on the surperficial 10a, for example can be arranged on the surperficial 10a with intermeshing yet, or use other nonparallel arrangement mode.As long as each finger electrode 12 is electrically connected to a bus electrode 14 at least, then should all belong to scope disclosed in the utility model.In addition, the utility model does not limit the width of each bus electrode 14, the width or the shape that also do not limit each bus electrode 14 are all identical, and only otherwise influence the overall efficiency of solar cell, affiliated technical field person should select the width of suitable bus electrode 14 voluntarily.
In several bus electrodes 14 that the compartment of terrain arranges on surperficial 10a, should there be a bus electrode 14 to have plural conductive area 142 at least.Though note that the conductive area 142 that Fig. 1 illustrates is structures of strip, the utility model is not as limit.On the practice, conductive area 142 can be designed to the inhomogeneous triangle of width, rhombus, polygon or have other that shape of radian is arranged.Preferably, the shape of each conductive area 142 is roughly the same.In addition, though the conductive area 142 that Fig. 1 illustrates is to be arranged in serial more closely, the feasible ground finger electrode 12 that is arranged in parallel all can be electrically connected at least one conductive area 142 just, but the utility model is not limited, and for example in fact finger electrode 12 may need bending or be electrically connected to conductive area 142 via other line design.
In an illustrative example, no matter whether bus electrode 14 has conductive area 142, wantonly two bus electrodes 14 all are arranged in parallel.That is to say that if wherein a bus electrode 14 does not have conductive area 142, then described bus electrode 14 is an entity electrode, and extend (as the longitudinal direction of Fig. 1) towards a specific direction haply.If bus electrode 14 has plural conductive area 142, then described bus electrode 14 is actually the set of a plurality of conductive area 142, and conductive area 142 also can be arranged (as the longitudinal direction of Fig. 1) towards described specific direction haply.
Though it should be noted that Fig. 1 for convenience of description, and only illustrated several conductive area 142, the utility model should not be limited with the conductive area 142 of specific quantity.Based on the content of the utility model institute teaching and possible change type thereof, be familiar with the person skilled in art and can optionally design more or less conductive area 142.Specifically, in fact do not electrically connect between each conductive area 142, but need just can electrically conduct by the following process (as the installing of bus) of solar cell 1.
Please in the lump referring to Fig. 1 and Fig. 2, Fig. 2 is the partial schematic diagram that illustrates according to the solar cell of the utility model one example embodiment.For convenience of description, for wide, some finger electrodes 12 need just can be electrically connected to conductive area 142 through suitable bending the distance between the conductive area 142 that Fig. 2 illustrates compared to Fig. 1.As shown in the figure, finger electrode 12 is the dual-sides that are electrically connected at conductive area 142, and between adjacent two conductive area 142, is to have a predeterminable range d1, and predeterminable range d1 should be greater than 0cm and less than 15cm.In other words, as long as adjacent conductive block 142 is electrical independence (separation), and the spacing of adjacent conductive block 142 then should all belong to scope disclosed in the utility model haply less than 15cm.
At this, the utility model does not limit the width (for example described width is laterally calculating with Fig. 2) of each conductive area 142, is familiar with the person skilled in art and can decides in its sole discretion.Preferably, the width of each conductive area 142 in the same bus electrode 14 is all identical.If all have conductive area 142 in the different bus electrode 14, then preferably, the width of all conductive area 142 is all identical.Establish a capital when having conductive area 142 if differ in the different bus electrodes 14, and the width of aforesaid conductive area 142 should be identical with the width of the bus electrode 14 that does not have conductive area 142.
In another example embodiment of the utility model, see also Fig. 3, Fig. 3 is the partial schematic diagram that illustrates according to the solar cell of another example embodiment of the utility model.As shown in Figure 3, solar cell 2 is to have semiconductor substrate (not indicating), several finger electrodes 22, several conductive area 242 and redundant electrode 26.Identical with Fig. 2 embodiment is, described finger electrode 22, several conductive area 242 are arranged on the semiconductor substrate, and a plurality of conductive area 242 is combined and can be regarded as a bus electrode (indicating).In addition, finger electrode 22 can be electrically connected to the dual-side of conductive area 242 equally.Different with Fig. 2 embodiment is that redundant electrode 26 is to electrically connect conductive area 242, makes conductive area 242 unfixing with the global shape of redundant electrode 26.
With function, redundant electrode 26 is to electrically connect finger electrode 22 for convenience and make things convenient for the purpose of solar cell 2 following process designed haply.On practice, the manufacturer of modular solar power battery 2 also can be in conjunction with bus above bus electrode.If conductive area 242 areas in the bus electrode are too little or too far away at interval, might be unfavorable for the installing of bus.Accordingly, for the installing better effects if that makes bus, more firm, redundant electrode 26 can be looked actual needs and optionally be arranged on the semiconductor substrate.
For another example, see also Fig. 4, Fig. 4 illustrates according to the utility model partial schematic diagram of the solar cell of an example embodiment again.As shown in Figure 4, solar cell 3 is to have semiconductor substrate (not indicating), several finger electrodes 32, several conductive area 342 and redundant electrode 36.Identical with Fig. 3 embodiment is, described finger electrode 32, several conductive area 342 and redundant electrode 36 are arranged on the semiconductor substrate, and a plurality of conductive area 342 is combined and can be regarded as a bus electrode (indicating).In addition, finger electrode 22 can be electrically connected to the dual-side of conductive area 242 equally.Different with Fig. 3 embodiment is that the redundant electrode 36 of present embodiment can not be electrically connected to any conductive area 342.
The purpose of design of the redundant electrode 36 of present embodiment, incomplete same with the purpose of last example.Main, the redundant electrode 36 of present embodiment need not electrically connect finger electrode 32 haply, and just the purpose of solar cell 3 following process is designed for convenience.Note that the utility model arranges position or shape what this did not limit redundant electrode 36, as long as help the following process (as the installing of bus) of solar cell 3, is familiar with position and shape that the person skilled in art can optionally design redundant electrode 36.Preferably, redundant electrode 36 continues between the conductive area 342 of arranging before and after can be arranged on.
In another example, several conductive area can be arranged the surface that is arranged at semiconductor substrate side by side along the some rows of specific direction.See also Fig. 5, Fig. 5 is the partial schematic diagram that illustrates according to the solar cell of the another example embodiment of the utility model.As shown in Figure 5, solar cell 5 is to have semiconductor substrate (not indicating), several finger electrodes 42 and several conductive area 442.Identical with Fig. 2 embodiment is, described finger electrode 42 and several conductive area 442 are arranged on the semiconductor substrate, and a plurality of conductive area 442 is combined and can be regarded as a bus electrode (indicating).
Different with Fig. 2 embodiment is that conductive area 442 is not just arranged and formed a serial, forms plural serial but can arrange.From macroscopic, the set of the conductive area 442 of each serial can be regarded as a branch electrodes (not indicating), and the bearing of trend of described branch electrodes is the orientation of the conductive area 442 of described serial.From microcosmic, conductive area 442 in the same serial does not electrically connect, and in fact same not electric connection between the conductive area 442 in the different serials all is to need just can electrically conduct by the following process (as the installing of bus) of solar cell 4.At this, between the two adjacent row conductive area 442, should have one fixing apart from d2, the utility model is the numerical value of limiting distance d2 not, is familiar with the person skilled in art and can designs voluntarily.Preferably, described apart from d2 greater than 0mm and less than 2mm.
Dual-side that it should be noted that the disclosed conductive area 442 of present embodiment can't electrically connect finger electrode 42 simultaneously.Accordingly, not limit also that finger electrode 42 closes with the electric connection of conductive area 442 be as long as conductive area 442 electrically connects a finger electrode 42 at least, namely should belong to scope disclosed in the utility model to the utility model.
In another example embodiment, more can have redundant electrode between the conductive area of some row.See also Fig. 6, Fig. 6 illustrates according to the utility model partial schematic diagram of the solar cell of an example embodiment again.As shown in Figure 6, solar cell 5 is to have semiconductor substrate (not indicating), several finger electrodes 52, several conductive area 542 and redundant electrode 56.Identical with Fig. 5 embodiment is, described finger electrode 52, several conductive area 542 are arranged on the semiconductor substrate, and a plurality of conductive area 542 is combined and can be regarded as a bus electrode (indicating).Different with Fig. 5 embodiment is, the position that arranges of redundant electrode 56 can be between the conductive area of adjacent two serials, and helps the following process (as the installing of bus) of solar cell 3.
In sum, solar cell of the present utility model wherein has at least a bus electrode to be made up of several conductive area separated from one another, and described a plurality of conductive area are arranged along first direction and arranged.Except the overall efficiency that does not influence solar cell, for the manufacturer of follow-up reprocessing, the course of processing of installing bus is also unaffected.Accordingly, the utility model has been by having changed the electrode pattern on the sensitive surface, thereby can reduce the use amount of elargol, just reduced the manufacturing cost of solar cell.
The above only is embodiment of the present utility model, and it is not in order to limit to claim of the present utility model.
Claims (8)
1. solar cell, it is characterized in that: it comprises:
The semiconductor substrate;
Several finger electrodes are arranged at a surface of this semiconductor substrate; And
Several bus electrodes, the compartment of terrain is arranged at this surface, at least one this bus electrode includes several conductive area, those conductive area are independent mutually, those conductive area are arranged along a first direction and are arranged at this surface, and each this conductive area electrically connects those finger electrodes one of them at least.
2. solar cell as claimed in claim 1, it is characterized in that: those conductive area are successively arranged along this first direction and are arranged at this surface.
3. solar cell as claimed in claim 2 is characterized in that: at least one this bus electrode, and one first distance at interval between at least one this conductive area and adjacent this conductive area, this first distance is greater than 0cm and less than 15cm.
4. solar cell as claimed in claim 1 is characterized in that: at least one this bus electrode, have more a redundant electrode, at least one this conductive area electrically connects at least one should the redundancy electrode.
5. solar cell as claimed in claim 1, it is characterized in that: at least one this bus electrode, have more a redundant electrode, this redundancy electrode does not connect those conductive area.
6. solar cell as claimed in claim 1, it is characterized in that: those conductive area are arranged side by side along the some rows of this first direction and are arranged at this surface.
7. solar cell as claimed in claim 6 is characterized in that: between parallel those conductive area of adjacent two rows, and a second distance at interval, this second distance is greater than 0mm and less than 2mm.
8. solar cell as claimed in claim 1, it is characterized in that: those bus electrodes are parallel to each other, and this first direction is parallel to the bearing of trend of those bus electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320016236 CN203118959U (en) | 2013-01-11 | 2013-01-11 | Solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320016236 CN203118959U (en) | 2013-01-11 | 2013-01-11 | Solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203118959U true CN203118959U (en) | 2013-08-07 |
Family
ID=48899278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320016236 Expired - Fee Related CN203118959U (en) | 2013-01-11 | 2013-01-11 | Solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203118959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611007A (en) * | 2019-05-14 | 2019-12-24 | 友达光电股份有限公司 | Solar battery |
-
2013
- 2013-01-11 CN CN 201320016236 patent/CN203118959U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611007A (en) * | 2019-05-14 | 2019-12-24 | 友达光电股份有限公司 | Solar battery |
| CN110611007B (en) * | 2019-05-14 | 2021-10-22 | 友达光电股份有限公司 | Solar battery |
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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: 20130807 Termination date: 20180111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |