TWI505484B - Solar cell and module comprising the same - Google Patents

Description

Solar cell and its module

The invention relates to a solar cell and a module thereof, in particular to a twin solar cell and a module thereof.

Referring to Figures 1 and 2 (for the sake of convenience, the back side of the solar cell of Figure 2 is drawn upwards), the conventional twinned solar cell mainly comprises: a substrate 81 having an opposite light-receiving front surface 811 and a back surface 812 of a backlight, A front surface electrode 82 on the front surface 811, a plurality of bus electrodes 83 on the back surface 812, and a back surface electrode 84 on the back surface 812 and connecting the plurality of bus electrodes 83. In general, the aluminum back electrode 84 of the conventional battery is not effective for soldering, and the bus electrode 83 of a silver-aluminum mixed material is usually used for soldering to the ribbon.

Referring to Figures 3 and 4 (for convenience of illustration, the back side of the solar cell of Figure 4 is drawn upwards), in order to improve battery performance, there is currently a solar cell of improved structure comprising: a front surface 911 having a light receiving surface and a back surface of a backlight a substrate 91 of 912, a front electrode 92 on the front surface 911, a plurality of local back surface fields (LBSF) 98 on the back surface 912, and a plurality of aluminum-bismuth alloy structures 93, one on the back surface 912 a passivation layer 94 thereon, and a plurality of passivation layers 94 A linear opening 95, a back electrode 96, and a plurality of electrode groups 97 connecting the back electrode 96.

The back electrode 96 includes a plurality of first conductive portions 961 that can contact the plurality of aluminum-bismuth alloy structures 93 via the plurality of linear openings 95, and a surface of the passivation layer 94 is attached and connected The second conductive portion 962 of the first conductive portion 961. The plurality of electrode groups 97 are arranged at intervals, and each electrode group 97 includes a plurality of electrode portions 971 spaced apart from each other.

The surface of the substrate 91 is repaired and reduced by the passivation layer 94, thereby reducing the recombination rate of the carrier at the back surface 912 of the substrate 91 to improve the conversion efficiency of the battery. The plurality of partial back surface electric fields 98 and the aluminum-bismuth alloy structure 93 respectively correspond to the plurality of linear openings 95 at the back surface 912, and the doping concentration of the partial back surface electric field 98 is greater than the doping concentration of the substrate 91. It can help improve carrier collection efficiency and photoelectric conversion efficiency.

Therefore, the batteries of Figures 3 and 4 have higher conversion efficiencies than the conventional batteries of Figures 1 and 2. The carriers of the batteries of FIGS. 3 and 4 passing through the respective aluminum-bismuth alloy structures 93 can be conducted to the outside through the back electrode 96 and the plurality of electrode portions 971, wherein most of the linear openings 95 and the number are Since the positions of the electrode portions 971 are partially overlapped, the path of the carriers at the aluminum-bismuth alloy structure 93 corresponding to these portions to be conducted to the electrode portion 971 is short (as indicated by an arrow A in Fig. 4), and the conductivity is good. However, in fact, the battery structure is still missing, because the arrangement relationship between the plurality of electrode portions 971 and the plurality of linear openings 95 is not specially designed, and there are often some positions of the linear openings 95 and the electrode portion 971. The overlapping, for example, the first linear opening 95 and the most linear opening 95 shown in FIG. 3 do not correspond to the position of the electrode portion 971. The two alloy structures 93 corresponding to the first linear opening 95 and the last linear opening 95 are not in contact with the electrode portion 971, so that the carrier must pass through the aluminum-bismuth alloy structure 93. The outer first conductive portion 961 and the second conductive portion 962 can be transmitted to the electrode portion 971, so that the conduction path of the carrier will increase (as shown by the arrow B in FIG. 4), affecting the electrical effect of the battery; The material of the electrode 96 is a combination of aluminum and some mixtures, and its electrical resistance is much higher than that of the aluminum-bismuth alloy structure 93. Therefore, if the electrical conduction needs to pass through the first conductive portion 961 and the second conductive portion 962 on the back surface electrode 96, It is easy to cause current loss, resulting in poor current collection efficiency and reduced photoelectric conversion efficiency.

Accordingly, it is an object of the present invention to provide a solar cell and a module thereof which can enhance carrier conduction capability and increase current collection efficiency and photoelectric conversion efficiency.

Therefore, the solar cell of the present invention comprises: a substrate, an emitter layer, a front electrode, a passivation layer, a plurality of first linear openings, a plurality of first conductive portions, a plurality of alloy structures, and a plurality of electrodes unit.

The substrate includes a light-receiving front side and a back side opposite the front side. The emitter layer is disposed at the front side. The front electrode is disposed at the front surface and contacts the emitter layer. The passivation layer is disposed at the back surface. The plurality of first linear openings are located on the passivation layer, and the plurality of first linear openings extend in a first direction and are spaced apart in a second direction. The plurality of first conductive portions are respectively located in the plurality of first linear openings and extend in the first direction. The plurality of alloy structures are formed on the back surface and respectively correspond to a plurality of first lines Opening and extending along the first direction, wherein each of the alloy structures is located between each of the first conductive portions and the substrate, and contacts each of the first conductive portions. The plurality of electrode portions are disposed on the passivation layer and spaced apart along the second direction, wherein each of the alloy structures is in contact with at least one of the plurality of electrode portions.

The present invention also provides another solar cell, which mainly changes the structure of the electrode portion. The other solar cell includes an electrode portion disposed on the passivation layer and extending along the second direction, the two ends of the electrode portion are respectively adjacent to two opposite sides of the substrate, and the electrode portion and the plurality of electrodes Each alloy structure in the alloy structure is in contact.

The solar cell module of the present invention comprises: a first plate and a second plate disposed oppositely, at least one solar cell arranged in any one of the above and arranged between the first plate and the second plate, and a The first plate and the second plate are in contact with the packaging material of the solar cell.

The effect of the invention: by making each alloy structure contact with the electrode portion, a perfect conductive network can be formed to shorten the path length of the carrier conduction, thereby reducing current loss, improving current collection efficiency and photoelectric conversion efficiency.

1‧‧‧ first plate

36‧‧‧First Conductive Department

2‧‧‧Second plate

37‧‧‧Connecting the conductive part

3‧‧‧Solar battery

380‧‧‧electrode group

30‧‧‧Local back surface electric field

38‧‧‧Electrode

31‧‧‧Substrate

39‧‧‧Second Conductive Department

311‧‧‧ positive

4‧‧‧Package

312‧‧‧ back

51‧‧‧First direction

313‧‧ ‧ emitter layer

52‧‧‧second direction

314‧‧‧ side

61‧‧‧Connecting the opening

32‧‧‧ front electrode

62‧‧‧ Third Conductive Department

33‧‧‧ Passivation layer

71‧‧‧Second linear opening

34‧‧‧ alloy structure

72‧‧‧4th Conductive Department

35‧‧‧First linear opening

8‧‧‧welding tape

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is a schematic view of a rear view of a known solar cell; FIG. 2 is a cross-sectional view taken along line A-A of FIG. 3 is a schematic side view of another known solar cell; FIG. 4 is a partial perspective cross-sectional view of the solar cell of FIG. 3; FIG. 5 is a partial cross-sectional view showing a first preferred embodiment of the solar cell module of the present invention; 6 is a rear view of a solar cell of the first preferred embodiment; FIG. 7 is a cross-sectional view taken along line BB of FIG. 6; FIG. 8 is a cross-sectional view taken along line CC of FIG. A top perspective view of a back side of the solar cell of a preferred embodiment, the arrows in the figure indicate the direction of carrier conduction; and FIG. 10 is a solar cell of a second preferred embodiment of the solar cell module of the present invention. FIG. 11 is a schematic rear view of a solar cell according to a third preferred embodiment of the solar cell module of the present invention; FIG. 12 is a solar cell of a fourth preferred embodiment of the solar cell module of the present invention. FIG. 13 is a schematic rear view of a solar cell according to a fifth preferred embodiment of the solar cell module of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIGS. 5 and 6, a first preferred embodiment of the solar cell module of the present invention comprises: a first plate 1 and a second plate 2 disposed opposite to each other, and a plurality of arrays arranged on the first plate 1 and the first Two plates 2 The solar cell 3, and at least one encapsulant 4 located between the first plate 1 and the second plate 2 and contacting the plurality of solar cells 3. The module may include at least one solar cell 3, and it is absolutely unnecessary to use a plurality of solar cells 3.

The first plate 1 and the second plate 2 are not particularly limited in implementation, and a glass or plastic plate may be used, and the plate on one side of the light receiving surface of the battery must be permeable to light. In the case of a double-sided light-receiving solar cell, both the first plate 1 and the second plate 2 must be transparent. The material of the encapsulant 4 is, for example, a light transmissive ethylene vinyl acetate copolymer (EVA), or other related materials that can be used for solar cell module packaging.

The plurality of solar cells 3 are electrically connected through a ribbon strip 8. The structures of the plurality of solar cells 3 are the same, and only one of them will be described below as an example. However, the structure of several batteries in a module is not absolutely necessary.

Referring to FIGS. 6, 7, 8, and 9, the solar cell 3 includes a substrate 31, a front electrode 32, a passivation layer 33, a plurality of aluminum alloy structures 34, a plurality of first linear openings 35, and a plurality of The first conductive portion 36, one connecting conductive portion 37, and a plurality of electrode groups 380.

The substrate 31 includes a light-receiving front surface 311 and a back surface 312 opposite to the front surface 311. The substrate 31 is, for example but not limited to, a germanium substrate, and the front surface 311 is provided with an emitter layer 313. The conductivity of the substrate 31 is reversed, one of which is a p-type semiconductor and the other is an n-type semiconductor. In addition, the front surface 311 of the substrate 31 can also be provided with an anti-reflection layer not shown, which can increase the amount of light entering the battery.

The front surface electrode 32 is disposed on the front surface 311 and contacts the emitter layer 313. The front surface electrode 32 cooperates with the plurality of first conductive portions 36, the connecting conductive portion 37 and the plurality of electrode groups 380 to output electrical energy of the battery. .

The passivation layer 33 is disposed on the back surface 312 of the substrate 31 for passivating and repairing the back surface 312, thereby reducing the Surface Recombination Velocity (SRV). The material of the passivation layer 33 is, for example, an oxide, a nitride, a combination of an oxide and a nitride, or other dielectric material that can be used to passivate and repair the surface of the substrate 31.

The plurality of alloy structures 34 are located at the back surface 312 of the substrate 31 and respectively correspond to the positions of the plurality of first linear openings 35 and extend along a first direction 51. And each of the alloy structure 34 and the interior of the substrate 31 has a partial back surface electric field (LBSF) 30 having the same conductivity as the substrate 31, and the doping concentration of the partial back surface electric field 30 is greater than the doping concentration of the substrate 31. The electric field of the partial back surface electric field 30 blocks the movement of electrons toward the back surface 312, so that electrons are collected in the emitter layer 313 to improve carrier collection efficiency and conversion efficiency. Moreover, the alloy structure 34 is referred to as an aluminum-bismuth alloy structure in which the germanium content is about 12.6%, and the aluminum content in the partial back surface electric field 30 is about 1% and 99%, which is only an example but not This is limited to this.

The plurality of first linear openings 35 are spaced apart from each other on the passivation layer 33. The plurality of first linear openings 35 extend along the first direction 51 and along a second direction perpendicular to the first direction 51. 52 intervals. In practice, other openings may be provided between any two of the first linear openings 35 to connect the first linear openings 35.

The plurality of first conductive portions 36 are respectively located in the first linear opening 35 and extend along the first direction 51 and contact the plurality of alloy structures 34 of the back surface 312 of the substrate 31 . Each of the first conductive portions 36 is partially filled in the first linear opening 35 corresponding thereto and partially exposed outside the first linear opening 35. The connection conductive portion 37 is located on the surface of the passivation layer 33 and connects the plurality of first conductive portions 36 and the plurality of electrode portions 38. The material of the plurality of first conductive portions 36 and the connecting conductive portion 37 is, for example but not limited to, aluminum, and is a mixture of aluminum of the same material.

The plurality of electrode groups 380 are disposed on the passivation layer 33, and the plurality of electrode groups 380 are spaced apart from each other along the first direction 51. Each electrode set 380 includes a plurality of electrode portions 38 spaced apart along the second direction 52. The material of the electrode portion 38 is, for example, but not limited to, silver, and in practice, is a mixture comprising silver. At least one of the plurality of electrode portions 38 in each electrode group 380 contacts at least one of the plurality of alloy structures 34, preferably each electrode portion 38 contacts at least one alloy structure 34. Further, each of the alloy structures 34 is in contact with at least one of the plurality of electrode portions 38. Specifically, the plurality of electrode portions 38 in each electrode group 380 of the embodiment are in a one-to-one contact relationship with the plurality of alloy structures 34, and each of the alloy structures 34 is located in each of the electrode groups 380. The first conductive portion 38 is between the substrate 31 and the substrate 31.

It should be noted that the number of the electrode groups 380 of the present invention may also be one. In addition, a second conductive portion 39 is disposed between each of the electrode portions 38 of the embodiment and the back surface 312 of the substrate 31. The second conductive portion 39 is located in one of the plurality of first linear openings 35. Inside, where current is self After the alloy structure 34 is transferred to the second conductive portion 39, it is directly conducted to the plurality of electrode portions 38. The material of the second conductive portion 39 may be a mixture of silver or/and aluminum, and the second conductive portion 39 and the electrode portion 38 may be simultaneously formed by one screen printing operation (in this case, there is no boundary between the second conductive portion 39 and the electrode portion 38). At this time, the material of the electrode portion 38 and the second conductive portion 39 is, for example, a mixture of silver and aluminum (wherein the ratio of silver is much higher than that of aluminum, so commonly referred to as back silver paste), and then the number of screens is printed on the alignment screen. A conductive portion 36 and the connecting conductive portion 37, wherein the material of the first conductive portion 36 and the connecting conductive portion 37 is, for example, a mixture of aluminum. Therefore, when the second conductive portion 39 is made of aluminum, the second conductive portion 39, the first conductive portion 36, and the connecting conductive portion 37 can be simultaneously formed by a single screen printing operation, and then the plurality of electrode portions are formed by screen printing. 38; Of course, the second conductive portion 39 printed on the screen can be thinner than the first conductive portion 36 and the connecting conductive portion 37 by adjusting the thickness of the screen emulsion layer, thereby making the screen printed later. The height of the electrode portion 38 does not cause an excessive difference between the heights of the first conductive portion 36 and the connection conductive portion 37. In addition, in practice, the second conductive portion 39 and the electrode portion 38, which are commonly referred to as back silver, and the first printed portion 36 and the connecting conductive portion 37 are sequentially screen printed to form a back electrode, which is commonly referred to as a back aluminum. Among them, the surrounding silver is usually covered by the back aluminum and overlaps, that is, the two will have contact.

In addition, in the present invention, it is not necessary to provide the second conductive portion 39. When the second conductive portion 39 is not provided, the portion of the passivation layer 33 corresponding to the plurality of electrode portions 38 may not need to form a hole. The electrode portion 38 is located on the surface of the passivation layer 33. At this time, the conduction of current can be transmitted to the overlap of the back aluminum and the back silver in the alloy structure 34, and further Directly transferred to the electrode portion 38 described above.

In summary, since the plurality of alloy structures 34 of the present invention have an upper and lower corresponding relationship with the electrode portion 38, it is designed to have direct contact with each other, or the second conductive portion 39 is not provided as described above. At the same time, the conduction effect of the current transfer effect can still be transmitted. In addition, under the special arrangement relationship between the alloy structure 34 and the electrode portion 38 of the present invention, a perfect conductive network can be formed, and the path length of the carrier conduction can be shortened, so that the positions of the plurality of alloy structures 34 can be The position of at least one electrode portion 38 corresponds to. In this way, the carrier generated in the substrate 31 can be conducted to the electrode portion 38 in contact with the alloy structure 34 via the alloy structure 34 during conduction without the need for the first through the external portion. The conductive portion 36 and the connecting conductive portion 37 can be conducted to the electrode portion 38, thereby reducing current loss (refer to the description of the prior art of the present invention, because the first conductive portion 36 and the connecting conductive portion 37 are electrodes of an aluminum mixture, and the resistance thereof Compared with the (aluminum bismuth) alloy structure 34, it is high, which hinders current conduction), thereby improving the current collecting efficiency and photoelectric conversion efficiency of the battery.

When the plurality of alloy structures 34 are in direct contact with the plurality of second conductive portions 39, the carriers at the plurality of alloy structures 34 are respectively transmitted to the plurality of electrodes through the plurality of second conductive portions 39. When the second conductive portion 39 and the electrode portion 38 are formed by using a silver paste screen, each of the corresponding second conductive portions 39 and the electrode portion 38 can be regarded as a whole. The alloy structure 34 is equivalent to directly contacting the plurality of conductive portions 38 to achieve a more direct and better carrier conduction effect.

Referring to FIG. 10, a second preferred embodiment of the solar cell module of the present invention The embodiment is different from the first preferred embodiment in that each electrode portion 38 of the solar cell 3 of the present embodiment contacts two alloy structures 34, and in practice, each electrode portion 38 can also contact three. Four or more alloy structures 34.

Referring to FIG. 11, a third preferred embodiment of the solar cell module of the present invention is different from the first preferred embodiment in that the solar cell 3 of the present embodiment further includes a plurality of cells located on the passivation layer. The second direction 52 extends into the opening 61, and the plurality of engaging openings 61 are respectively connected to the same side of any two adjacent first linear openings 35 of the plurality of first linear openings 35. Between one end, and the plurality of engaging openings 61 are not connected to each other. Each of the connecting openings 61 has a third conductive portion 62 connected to the two first conductive portions 36 of the two adjacent first linear openings 35, wherein the first conductive portion 36 corresponds to the first conductive portion 36. An aluminum alloy structure 34 is formed on the back surface of the substrate of the third conductive portion 62, that is, the plurality of first conductive portions 36 are connected by the third conductive portion 62 to form a continuous aluminum crucible. The conductive network of alloy structure 34 enhances current collection efficiency. In practice, the plurality of connection openings 61 and the corresponding plurality of third conductive portions 62 are generally located at opposite side edges of the substrate 31.

Specifically, the plurality of connection openings 61 can be divided into two groups, wherein the plurality of connection openings 61 of the group are respectively connected to one ends of the nth and n+1th first linear openings 35. And an odd number such as n=1, 3, 5, etc.; the plurality of connection openings 61 of the other group are respectively connected between one ends of the mth and m+1th first linear openings 35, m =2, 4, 6... and even numbers.

Referring to FIG. 12, a fourth preferred embodiment of the solar cell module of the present invention The embodiment is different from the first preferred embodiment in that the solar cell 3 of the present embodiment further includes two second linear openings 71 located in the passivation layer and extending along the second direction 52. Two second linear openings 71 are spaced apart along the first direction 51 and connected to opposite ends of the plurality of first linear openings 35. Each of the second linear openings 71 has a fourth conductive portion 72 connected to the plurality of first conductive portions 36 of the plurality of first linear openings 35, wherein the fourth conductive portion 72 corresponds to The back surface of the substrate also has an aluminum alloy structure 34, which is designed to form a fully continuous conductive network, thereby improving current collection efficiency.

Referring to Figure 13, a fifth preferred embodiment of the solar cell module of the present invention differs from the first preferred embodiment in the design of the electrode portion 38. The embodiment includes a plurality of electrode portions 38 extending in the second direction 52 and spaced apart along the first direction 51. Each of the electrode portions 38 of the present embodiment is an integrated continuous extending strip shape, and two ends of each electrode portion 38 are respectively adjacent to two opposite sides of the substrate 31 which are arranged along the second direction 52. 314. Each electrode portion 38 contacts each alloy structure 34. Of course, this embodiment can also provide only one elongated electrode portion 38 as long as the electrode portion 38 can contact all of the alloy structures 34 to achieve the object of the present invention. In addition, in the case of improving the structure of the electrode portion 38, the embodiment can also be matched with the design of the engaging opening 61 and the third conductive portion 62 of the third preferred embodiment (FIG. 11) and the corresponding alloy structure 34 thereof. Or with the design of the second linear opening 71 and the fourth conductive portion 72 of the fourth preferred embodiment (FIG. 12) and the corresponding alloy structure 34 thereof. In addition, a plurality of second guides are disposed between the electrode portion 38 of the embodiment and the substrate 31. The electric parts (not shown in FIG. 13 , please refer to FIG. 9 ), each of the second conductive portions are respectively located in each of the first linear openings 35 .

In summary, the spirit of the present invention mainly connects the respective alloy structures 34 by the electrode portions 38 to shorten the carrier conduction path, thereby improving current collection efficiency and photoelectric conversion efficiency. In the implementation, the design of the shape and connection relationship of the plurality of electrode portions 38 and the alloy structure 34 is not limited, and the above-described structural arrangement relationship is the protection scope of the present invention. Of course, in practice, the use of the plurality of spaced electrode portions 38 of the first to fourth preferred embodiments can also effectively save the cost of materials.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

3‧‧‧Solar battery

37‧‧‧Connecting the conductive part

31‧‧‧Substrate

380‧‧‧electrode group

34‧‧‧ alloy structure

38‧‧‧Electrode

35‧‧‧First linear opening

51‧‧‧First direction

36‧‧‧First Conductive Department

52‧‧‧second direction

Claims (11)

A solar cell comprising: a substrate comprising a light-receiving front surface and a back surface opposite to the front surface; an emitter layer disposed at the front surface; a front electrode disposed at the front surface and contacting the emitter layer; a passivation layer disposed at the back surface; a plurality of first linear openings located on the passivation layer, the plurality of first linear openings extending along a first direction and spaced along a second direction; The first conductive portions are respectively located in the plurality of first linear openings and extend along the first direction; a plurality of alloy structures are formed on the back surface and respectively correspond to the plurality of first linear openings along the first a direction extending, wherein each of the alloy structures is located between each of the first conductive portions and the substrate, and contacts each of the first conductive portions; and a plurality of electrode portions disposed on the passivation layer and spaced along the second direction Arranged, wherein each of the alloy structures is in contact with at least one of the plurality of electrode portions. The solar cell of claim 1, wherein each electrode portion contacts at least one of the plurality of alloy structures. The solar cell of claim 1, wherein a second conductive portion is disposed between each of the electrode portions and the substrate, and the second conductive portion is located in one of the plurality of first linear openings. The solar cell of claim 1, further comprising a plurality of connection openings on the passivation layer, wherein the plurality of connection openings are respectively connected to any two adjacent ones of the plurality of first linear openings Between at least one end of the same side of the linear opening, each of the connecting openings has a third conductive portion respectively connected to the two first conductive portions of the two adjacent first linear openings . The solar cell of claim 1, further comprising a connecting conductive portion on the surface of the passivation layer and connecting the plurality of electrode portions and the plurality of first conductive portions. A solar cell module comprising: a first plate and a second plate disposed oppositely; at least one solar cell according to any one of claims 1 to 5, arranged on the first plate and the second plate And a package material between the first plate and the second plate and contacting the solar cell. A solar cell comprising: a substrate comprising a light-receiving front surface and a back surface opposite to the front surface; an emitter layer disposed at the front surface; a front electrode disposed at the front surface and contacting the emitter layer; a passivation layer disposed at the back surface; a plurality of first linear openings located on the passivation layer, the plurality of first linear openings extending along a first direction and spaced apart along a second direction; a plurality of first conductive portions respectively located in the plurality of first linear openings and extending along the first direction; a plurality of alloy structures formed on the back surface and respectively corresponding to the plurality of first linear openings a first direction extending, wherein each of the alloy structures is located between each of the first conductive portions and the substrate, and contacts each of the first conductive portions; and an electrode portion disposed on the passivation layer and extending along the second direction The two ends of the electrode portion are respectively adjacent to two opposite sides of the substrate, and the electrode portion is in contact with each of the plurality of alloy structures. The solar cell of claim 7, wherein a plurality of second conductive portions are disposed between the electrode portion and the substrate, and each of the second conductive portions is located in each of the first linear openings. The solar cell of claim 7, further comprising a plurality of connection openings on the passivation layer, wherein the plurality of connection openings are respectively connected to any two adjacent ones of the plurality of first linear openings Between at least one end of the same side of the linear opening, each of the connecting openings has a third conductive portion respectively connected to the two first conductive portions of the two adjacent first linear openings . The solar cell of claim 7, further comprising a connecting conductive portion on the surface of the passivation layer and connecting the electrode portion and the plurality of first conductive portions. A solar cell module comprising: a first plate and a second plate disposed opposite each other; At least one solar cell according to any one of claims 7 to 10, arranged between the first plate and the second plate; and a package material between the first plate and the second plate, And contact the solar cell.