TWI553890B - Photovoltaic cell module - Google Patents
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- TWI553890B TWI553890B TW100108115A TW100108115A TWI553890B TW I553890 B TWI553890 B TW I553890B TW 100108115 A TW100108115 A TW 100108115A TW 100108115 A TW100108115 A TW 100108115A TW I553890 B TWI553890 B TW I553890B
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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
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Description
本發明是有關於一種太陽電池模組，且特別是有關於一種具有高光電轉換效率之太陽電池模組(photovoltaic cell module)。The present invention relates to a solar cell module, and more particularly to a photovoltaic cell module having high photoelectric conversion efficiency.
太陽能是一種乾淨無污染且取之不盡、用之不竭的能源，在解決目前石化能源所面臨的污染與短缺的問題時，太陽能一直是最受矚目的焦點。由於太陽電池可直接將太陽能轉換為電能，因此已成為目前產業界相當重要的研究課題之一。矽基太陽電池(silicon-based solar cell)以及有機太陽電池(OPV cell)為目前業界常見的一種太陽電池。Solar energy is a clean, pollution-free and inexhaustible source of energy. Solar energy has been the focus of attention in addressing the current pollution and shortages facing petrochemical energy. Since solar cells can directly convert solar energy into electrical energy, it has become one of the most important research topics in the industry. Silicon-based solar cells and organic solar cells (OPV cells) are common solar cells in the industry.
一般而言，傳統太陽電池是於基板上形成第一電極層、主動層以及第二電極層。當光線照射至太陽電池時，主動層會吸收光線而產生電子-電洞對，且兩電極層之間的電場會驅使電子與電洞會分別往兩電極層移動，而產生光電流。此時，若將太陽電池耦接至外加負載電路或電子裝置，太陽電池便可提供電能至外加負載電路或電子裝置。然而，目前太陽電池所面臨的最大問題之一就是其光電轉換效率不足。因此，如何提高太陽電池之光電轉換效率已成為研發者亟欲解決的問題之一。In general, a conventional solar cell has a first electrode layer, an active layer, and a second electrode layer formed on a substrate. When the light is irradiated to the solar cell, the active layer absorbs the light to generate an electron-hole pair, and the electric field between the two electrode layers drives the electron and the hole to move to the two electrode layers, respectively, to generate a photocurrent. At this time, if the solar cell is coupled to an external load circuit or an electronic device, the solar cell can supply power to the external load circuit or the electronic device. However, one of the biggest problems facing solar cells today is the lack of photoelectric conversion efficiency. Therefore, how to improve the photoelectric conversion efficiency of solar cells has become one of the problems that developers are trying to solve.
本發明提供一種太陽電池模組，其具有高光電轉換效率。The invention provides a solar cell module having high photoelectric conversion efficiency.
本發明提供一種太陽電池模組，其包括結晶矽太陽電池、第一密封材料層、透光基板、第二密封材料層以及薄膜太陽電池。結晶矽太陽電池具有第一表面以及與第一表面相對之第二表面。第一密封材料層配置於結晶矽太陽電池的第一表面上。透光基板配置於第一密封材料層上，其中第一密封材料層位於透光基板與結晶矽太陽電池之間。第二密封材料層配置於結晶矽太陽電池的第二表面上。薄膜太陽電池配置於第二密封材料層上，其中第二密封材料層位於薄膜太陽電池與結晶矽太陽電池之間。The invention provides a solar cell module comprising a crystalline germanium solar cell, a first sealing material layer, a light transmissive substrate, a second sealing material layer and a thin film solar cell. The crystalline germanium solar cell has a first surface and a second surface opposite the first surface. The first sealing material layer is disposed on the first surface of the crystalline germanium solar cell. The transparent substrate is disposed on the first sealing material layer, wherein the first sealing material layer is located between the transparent substrate and the crystalline germanium solar cell. The second sealing material layer is disposed on the second surface of the crystalline germanium solar cell. The thin film solar cell is disposed on the second sealing material layer, wherein the second sealing material layer is located between the thin film solar cell and the crystalline germanium solar cell.
本發明提供另一種太陽電池模組，其包括背板、第一結晶矽太陽電池、第一密封材料層、第一透光基板、第二密封材料層、第二結晶矽太陽電池、第三密封材料層、第二透光基板以及第四密封材料層。第一結晶矽太陽電池配置於背板的一側，第一結晶矽太陽電池具有第一表面以及與第一表面相對之第二表面。第一密封材料層配置於第一結晶矽太陽電池的第一表面上。第一透光基板配置於第一密封材料層上，其中第一密封材料層位於第一透光基板與第一結晶矽太陽電池之間。第二密封材料層配置於第一結晶矽太陽電池的第二表面上。第二結晶矽太陽電池配置於背板的另一側，第二結晶矽太陽電池具有第三表面以及與第三表面相對之第四表面。第三密封材料層配置於第二結晶矽太陽電池的第三表面上。第二透光基板配置於第三密封材料層上，其中第三密封材料層位於第二透光基板與第二結晶矽太陽電池之間。第四密封材料層配置於第二結晶矽太陽電池的第四表面上，其中第一結晶矽太陽電池透過第二密封材料層與背板接觸，而第二結晶矽太陽電池透過第四密封材料層與背板接觸。The present invention provides another solar cell module including a back plate, a first crystalline germanium solar cell, a first sealing material layer, a first transparent substrate, a second sealing material layer, a second crystalline germanium solar cell, and a third sealing a material layer, a second light transmissive substrate, and a fourth sealing material layer. The first crystalline germanium solar cell is disposed on one side of the backing plate, and the first crystalline germanium solar cell has a first surface and a second surface opposite the first surface. The first sealing material layer is disposed on the first surface of the first crystalline germanium solar cell. The first transparent substrate is disposed on the first sealing material layer, wherein the first sealing material layer is located between the first transparent substrate and the first crystalline germanium solar cell. The second sealing material layer is disposed on the second surface of the first crystalline germanium solar cell. The second crystalline germanium solar cell is disposed on the other side of the backing plate, and the second crystalline germanium solar cell has a third surface and a fourth surface opposite the third surface. The third sealing material layer is disposed on the third surface of the second crystalline germanium solar cell. The second transparent substrate is disposed on the third sealing material layer, wherein the third sealing material layer is located between the second transparent substrate and the second crystalline germanium solar cell. The fourth sealing material layer is disposed on the fourth surface of the second crystalline germanium solar cell, wherein the first crystalline germanium solar cell contacts the backing plate through the second sealing material layer, and the second crystalline germanium solar cell passes through the fourth sealing material layer Contact with the backing plate.
在本發明的一實施例中，前述之結晶矽太陽電池包括p-n接合半導體層、保護層以及多個電極。保護層配置於p-n接合半導體層上。多個電極與p-n接合半導體層電性連接。In an embodiment of the invention, the aforementioned crystalline germanium solar cell includes a p-n junction semiconductor layer, a protective layer, and a plurality of electrodes. The protective layer is disposed on the p-n junction semiconductor layer. A plurality of electrodes are electrically connected to the p-n junction semiconductor layer.
在本發明的一實施例中，前述之保護層之外表面上具有多個光學微結構。In an embodiment of the invention, the outer surface of the protective layer has a plurality of optical microstructures.
在本發明的一實施例中，前述之第一密封材料層之材質、第二密封材料層之材質、第三密封材料層之材質、第四密封材料層之材質包括乙酸乙烯酯(Ethylene Vinyl Acetate，EVA)、矽(Silicon)、低密度聚乙稀(Low density polyethylene，LDPE)、熱塑性安甲酸酯(Thermoplastic Urethane，TPU)，。In an embodiment of the invention, the material of the first sealing material layer, the material of the second sealing material layer, the material of the third sealing material layer, and the material of the fourth sealing material layer include vinyl acetate (Ethylene Vinyl Acetate). , EVA), Silicon (Silicon), Low Density Polyethylene (LDPE), Thermoplastic Urethane (TPU).
在本發明的一實施例中，前述之透光基板、第一透光基板、第二透光基板包括玻璃基板以及塑膠基板。In an embodiment of the invention, the transparent substrate, the first transparent substrate, and the second transparent substrate comprise a glass substrate and a plastic substrate.
在本發明的一實施例中，前述之太陽電池模組可進一步包括外框，其中結晶矽太陽電池、第一密封材料層、透光基板、第二密封材料層以及薄膜太陽電池係組裝於外框內。In an embodiment of the invention, the solar cell module may further include an outer frame, wherein the crystallization solar cell, the first sealing material layer, the transparent substrate, the second sealing material layer, and the thin film solar cell system are assembled Inside the box.
在本發明的一實施例中，前述之太陽電池模組可進一步包括反射器以及旋轉機構。旋轉機構連接於反射器與外框之間，以改變反射器與薄膜太陽電池之間的相對位置。In an embodiment of the invention, the solar cell module may further include a reflector and a rotating mechanism. A rotating mechanism is coupled between the reflector and the outer frame to change the relative position between the reflector and the thin film solar cell.
在本發明的一實施例中，前述之第一結晶矽太陽電池與第二結晶矽太陽電池具有相同結構，且第一結晶矽太陽電池包括p-n接合半導體層、配置於p-n接合半導體層上的保護層以及與p-n接合半導體層電性連接的多個電極。In an embodiment of the invention, the first crystalline germanium solar cell has the same structure as the second crystalline germanium solar cell, and the first crystalline germanium solar cell includes a pn junction semiconductor layer and is disposed on the pn junction semiconductor layer. a layer and a plurality of electrodes electrically connected to the pn junction semiconductor layer.
在本發明的一實施例中，前述之太陽電池模組可進一步包括外框，其中背板、第一結晶矽太陽電池、第一密封材料層、第二密封材料層、第一透光基板、第二結晶矽太陽電池、第三密封材料層、第四密封材料層以及第二透光基板係組裝於外框內。In an embodiment of the invention, the solar cell module may further include an outer frame, wherein the back plate, the first crystalline germanium solar cell, the first sealing material layer, the second sealing material layer, the first transparent substrate, The second crystallization solar cell, the third sealing material layer, the fourth sealing material layer, and the second transparent substrate are assembled in the outer frame.
在本發明的一實施例中，前述之太陽電池模組可進一步包括反射器以及旋轉機構。旋轉機構連接於反射器與外框之間，以改變反射器與第二結晶矽太陽電池之間的相對位置。In an embodiment of the invention, the solar cell module may further include a reflector and a rotating mechanism. A rotating mechanism is coupled between the reflector and the outer frame to change the relative position between the reflector and the second crystalline germanium solar cell.
基於上述，本發明之太陽電池模組能夠具有二用以分別接收外界光線之太陽電池，因此本發明之太陽電池模組具有高光電轉換效率。Based on the above, the solar cell module of the present invention can have two solar cells for respectively receiving external light, and thus the solar cell module of the present invention has high photoelectric conversion efficiency.
為讓本發明之上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。The above described features and advantages of the present invention will be more apparent from the following description.
圖1為本發明第一實施例之太陽電池模組剖面示意圖，而圖2A為本發明第一實施例之結晶矽太陽電池剖面示意圖。請參照圖1與圖2A，本實施例之太陽電池模組100包括結晶矽太陽電池110、第一密封材料層120、透光基板130、第二密封材料層140以及薄膜太陽電池150。舉例而言，本實施例之結晶矽太陽電池110包括p-n接合半導體層112、保護層114以及多個電極116。保護層114配置於p-n接合半導體層112上。多個電極116與p-n接合半導體層112電性連接。詳言之，本實施例之保護層114a、114b例如係分別配置於p-n接合半導體層112之上表面112a及p-n接合半導體層112之下表面112b。位於p-n接合半導體層112之上表面112a之保護層114可做為抗反射膜(Anti-reflection coating)，意即，位於p-n接合半導體層112之上表面112a之保護層114a可降低入射光線L被反射的機率，而將入射光線L有效地引導至p-n接合半導體層112中，進而提升結晶矽太陽電池110的光電轉換效率。透過材質(折射率)的選擇，位於p-n接合半導體層112之下表面112b之保護層114b可做為反射層，意即，位於p-n接合半導體層112之下表面112b之保護層114b可將穿出p-n接合半導體層112之部分光線L反射回p-n接合半導體層112中，而進一步提升結晶矽太陽電池110的光電轉換效率。本實施例之電極116可製作於保護層114a、114b之開口114’、114”中而與p-n接合半導體層112電性連接。詳言之，電極116與p-n接合半導體層112之間係形成良好的歐姆接觸(ohmic contact)。透過電極116可將p-n接合半導體層112中產生之光電流傳輸至結晶矽太陽電池110外部使用或儲存。在本實施例中，保護層114a之材質例如為氧化矽(SiOx)或其他介電材質，而保護層114b之材質例如為氧化矽(SiOx)或其他介電材質。 1 is a schematic cross-sectional view showing a solar cell module according to a first embodiment of the present invention, and FIG. 2A is a cross-sectional view showing a solar cell of a first embodiment of the present invention. Referring to FIG. 1 and FIG. 2A , the solar cell module 100 of the present embodiment includes a crystalline germanium solar cell 110 , a first sealing material layer 120 , a transparent substrate 130 , a second sealing material layer 140 , and a thin film solar cell 150 . For example, the crystalline germanium solar cell 110 of the present embodiment includes a pn junction semiconductor layer 112, a protective layer 114, and a plurality of electrodes 116. The protective layer 114 is disposed on the pn junction semiconductor layer 112. The plurality of electrodes 116 are electrically connected to the pn junction semiconductor layer 112. In detail, the protective layers 114a and 114b of the present embodiment are disposed, for example, on the upper surface 112a of the pn junction semiconductor layer 112 and the lower surface 112b of the pn junction semiconductor layer 112, respectively. The protective layer 114 located on the upper surface 112a of the pn junction semiconductor layer 112 can be used as an anti-reflection coating, that is, the protective layer 114a on the upper surface 112a of the pn junction semiconductor layer 112 can reduce incident light L The probability of reflection, while effectively guiding the incident light L into the pn junction semiconductor layer 112, thereby improving the photoelectric conversion efficiency of the crystalline germanium solar cell 110. Through the selection of the material (refractive index), the protective layer 114b located on the lower surface 112b of the pn junction semiconductor layer 112 can serve as a reflective layer, that is, the protective layer 114b located on the lower surface 112b of the pn junction semiconductor layer 112 can be passed through. Part of the light ray L of the pn junction semiconductor layer 112 is reflected back into the pn junction semiconductor layer 112 to further enhance the photoelectric conversion efficiency of the crystallization solar cell 110. The electrode 116 of the present embodiment can be formed in the openings 114', 114" of the protective layers 114a, 114b to be electrically connected to the pn junction semiconductor layer 112. In detail, the electrode 116 and the pn junction semiconductor layer 112 are well formed. The ohmic contact is transmitted through the electrode 116 to transmit or store the photocurrent generated in the pn junction semiconductor layer 112 to the outside of the crystallization solar cell 110. In this embodiment, the material of the protective layer 114a is, for example, yttrium oxide. (SiO x ) or other dielectric material, and the material of the protective layer 114b is, for example, yttrium oxide (SiO x ) or other dielectric material.
本發明之結晶矽太陽電池110可具有多種不同的型態，並不限於圖2A中所述之型態。圖2B為本發明另一實施例之結晶矽太陽電池110’。請參照圖2B，圖2B中的結晶矽太陽電池110’與圖2A中的結晶矽太陽電池110相似，惟二者主要差異之處在於：在結晶矽太陽電池110’中，保護層114a之一表面(與上表面114c相對的表面)上具有多個光學微結構114d。光學微結構114d可引導入射光線L以適當方向進入p-n接合半導體層112中，進而提高結晶矽太陽電池110的光電轉換效率。本實施例之光學微結構114d包括微透鏡(micro-lens)、微稜鏡(micro-prism)、凸塊(bump)等，但不以此為限。此外，光學微結構114d會被保護層114a所覆蓋，而p-n接合半導體層112之下表面112b例如係被一反射層114e所覆蓋。 The crystalline germanium solar cell 110 of the present invention can have a variety of different forms and is not limited to the type described in Figure 2A. Fig. 2B shows a crystalline germanium solar cell 110' according to another embodiment of the present invention. Referring to FIG. 2B, the crystalline germanium solar cell 110' of FIG. 2B is similar to the crystalline germanium solar cell 110 of FIG. 2A, but the main difference is that in the crystalline germanium solar cell 110', one of the protective layers 114a The surface (the surface opposite the upper surface 114c) has a plurality of optical microstructures 114d thereon. The optical microstructure 114d can direct the incident light L into the p-n junction semiconductor layer 112 in an appropriate direction, thereby improving the photoelectric conversion efficiency of the crystalline germanium solar cell 110. The optical microstructures 114d of the present embodiment include micro-lens, micro-prism, bumps, and the like, but are not limited thereto. In addition, the optical microstructures 114d are covered by the protective layer 114a, and the lower surface 112b of the p-n bonded semiconductor layer 112 is covered, for example, by a reflective layer 114e.
請參照圖1，本實施例之結晶矽太陽電池110具有第一表面110a以及與第一表面110a相對之第二表面110b。值得一提的是，本實施例之結晶矽太陽電池110的第一表面110a係為受光面，第一表面110a朝上以接收由太陽電池模組100上方入射之入射光線L。 Referring to FIG. 1, the crystalline germanium solar cell 110 of the present embodiment has a first surface 110a and a second surface 110b opposite to the first surface 110a. It is to be noted that the first surface 110a of the crystalline germanium solar cell 110 of the present embodiment is a light receiving surface, and the first surface 110a faces upward to receive the incident light L incident from above the solar cell module 100.
本實施例之第一密封材料層120係配置於結晶矽太陽電池110的第一表面110a上。在本實施例中，第一密封材料層120之材質包括乙酸乙烯酯(Ethylene Vinyl Acetate，EVA)、矽(Silicon)、低密度聚乙稀(Low density polyethylene，LDPE)、熱塑性安甲酸酯(Thermoplastic Urethane，TPU)，但不以此為限。本實施例之透光基板130配置於第一密封材料層120上，其中第一密封材料層120位於透光基板130與結晶矽太陽電池110之間。換言之，透過第一密封材料層120可將結晶矽太陽電池110與透光基板130緊密地接合在一起。在本實施例中，透光基板130包括玻璃基板以及塑膠基板，但不以此為限。 The first sealing material layer 120 of the present embodiment is disposed on the first surface 110a of the crystalline germanium solar cell 110. In this embodiment, the material of the first sealing material layer 120 includes Ethylene Vinyl Acetate (EVA), Silicon, Low Density Polyethylene (LDPE), and thermoplastic benzoate ( Thermoplastic Urethane, TPU), but not limited to this. The transparent substrate 130 of the present embodiment is disposed on the first sealing material layer 120 , wherein the first sealing material layer 120 is located between the transparent substrate 130 and the crystalline germanium solar cell 110 . In other words, the crystallization solar cell 110 and the transparent substrate 130 can be closely bonded together through the first sealing material layer 120. In this embodiment, the transparent substrate 130 includes a glass substrate and a plastic substrate, but is not limited thereto.
本實施例之第二密封材料層140配置於結晶矽太陽電池110的第二表面110b上。在本實施例中，第二密封材料層140之材質包括乙酸乙烯酯(Ethylene Vinyl Acetate，EVA)、矽(Silicon)、低密度聚乙稀(Low density polyethylene，LDPE)、熱塑性安甲酸酯(Thermoplastic Urethane，TPU)，但不以此為限。本實施例之薄膜太陽電池150配置於第二密封材料層140上，其中第二密封材料層140位於薄膜太陽電池150與結晶矽太陽電池110之間。換言之，透過第二密封材料層140可將結晶矽太陽電池110與薄膜太陽電池150緊密地接合在一起。值得一提的是，由於本實施例之太陽電池模組100除了包括受光面朝上之結晶矽太陽電池110外，還包括受光面150a朝下之薄膜太陽電池150。因此，本實施例之太陽電池模組100除了可利用結晶矽太陽電池110吸收由太陽電池模組100上方入射之入射光線L外，更可利用薄膜太陽電池150吸收由其他方向入射至太陽電池模組100中的光線L’，從而提高本實施例之太陽電池模組100的光電轉換效率。在本實施例中，薄膜太陽電池150包括多晶矽太陽電池、氫化非晶矽太陽電池、Ⅱ-Ⅵ及I-Ⅲ-Ⅵ族化合物半導體太陽電池等，但不以此為限。The second sealing material layer 140 of the present embodiment is disposed on the second surface 110b of the crystalline germanium solar cell 110. In this embodiment, the material of the second sealing material layer 140 includes Ethylene Vinyl Acetate (EVA), Silicon, Low Density Polyethylene (LDPE), and thermoplastic urethane ( Thermoplastic Urethane, TPU), but not limited to this. The thin film solar cell 150 of the present embodiment is disposed on the second sealing material layer 140, wherein the second sealing material layer 140 is located between the thin film solar cell 150 and the crystalline germanium solar cell 110. In other words, the crystalline germanium solar cell 110 and the thin film solar cell 150 can be tightly bonded together through the second sealing material layer 140. It is to be noted that the solar cell module 100 of the present embodiment includes a thin film solar cell 150 with the light receiving surface 150a facing downward, in addition to the crystalline solar cell 110 having the light receiving surface facing upward. Therefore, the solar cell module 100 of the present embodiment can absorb the incident light L incident from above the solar cell module 100 by using the crystallization solar cell 110, and can absorb the incident from the other direction to the solar cell module by using the thin film solar cell 150. The light ray L' in the group 100 improves the photoelectric conversion efficiency of the solar cell module 100 of the present embodiment. In the present embodiment, the thin film solar cell 150 includes a polycrystalline silicon solar cell, a hydrogenated amorphous germanium solar cell, a II-VI, and an I-III-VI compound semiconductor solar cell, but is not limited thereto.
另外，本實施例之太陽電池模組100可進一步包括外框160。結晶矽太陽電池110、第一密封材料層120、透光基板130、第二密封材料層140以及薄膜太陽電池150係組裝於外框160內。本實施例之外框160可為口字型之框體，其具有開口160a，以將結晶矽太陽電池110以及薄膜太陽電池150之受光面暴露。In addition, the solar cell module 100 of the embodiment may further include an outer frame 160. The crystalline germanium solar cell 110, the first sealing material layer 120, the transparent substrate 130, the second sealing material layer 140, and the thin film solar cell 150 are assembled in the outer frame 160. The outer frame 160 of the present embodiment may be a mouth-shaped frame having an opening 160a to expose the light-receiving surfaces of the crystalline silicon solar cell 110 and the thin film solar cell 150.
如圖3所示，本實施例之太陽電池模組100可進一步包括反射器170以及旋轉機構180。旋轉機構180連接於反射器170與外框160之間，以改變反射器170與薄膜太陽電池150之間的相對位置。舉例而言，當入射光線L的傳遞方向改變時，藉由旋轉機構180可使結晶矽太陽電池110面之第一表面110a(即受光面)與入射光線L的傳遞方向垂直，而使結晶矽太陽電池110可接收到較多的光線。另一方面，藉由旋轉機構180可調整反射器170與薄膜太陽電池150的相對位置，而使其他傳遞方向之入射光線L’可被反射器170反射，進而被薄膜太陽電池150所吸收。如此一來，各種傳遞方向之光線便可進入太陽電池模組100中，進而提高了太陽電池模組100的光電轉換效率。在本實施中，反射器170例如是反射鏡，但不以此為限。As shown in FIG. 3, the solar cell module 100 of the present embodiment may further include a reflector 170 and a rotating mechanism 180. The rotating mechanism 180 is coupled between the reflector 170 and the outer frame 160 to change the relative position between the reflector 170 and the thin film solar cell 150. For example, when the transmission direction of the incident light ray L is changed, the first surface 110a (ie, the light receiving surface) of the surface of the crystallization solar cell 110 can be perpendicular to the transmission direction of the incident ray L by the rotating mechanism 180, thereby causing crystallization. The solar cell 110 can receive more light. On the other hand, the relative position of the reflector 170 to the thin film solar cell 150 can be adjusted by the rotating mechanism 180, so that the incident light L' of other transmission directions can be reflected by the reflector 170 and absorbed by the thin film solar cell 150. In this way, light of various directions of transmission can enter the solar cell module 100, thereby improving the photoelectric conversion efficiency of the solar cell module 100. In the present embodiment, the reflector 170 is, for example, a mirror, but is not limited thereto.
圖4為本發明第二實施例之太陽電池模組剖面示意圖。請參照圖4，本實施例之太陽電池模組200包括背板210、第一結晶矽太陽電池220、第一密封材料層230、第一透光基板240、第二密封材料層250、第二結晶矽太陽電池260、第三密封材料層270、第二透光基板280以及第四密封材料層290。本實施例之背板210之材質例如為不銹鋼，但不以此為限。4 is a cross-sectional view showing a solar cell module according to a second embodiment of the present invention. Referring to FIG. 4 , the solar cell module 200 of the present embodiment includes a back plate 210 , a first crystalline germanium solar cell 220 , a first sealing material layer 230 , a first transparent substrate 240 , a second sealing material layer 250 , and a second The germanium solar cell 260, the third sealing material layer 270, the second transparent substrate 280, and the fourth sealing material layer 290 are crystallized. The material of the back plate 210 of the embodiment is, for example, stainless steel, but is not limited thereto.
第一結晶矽太陽電池220配置於背板210的一側210a。舉例而言，第一結晶矽太陽電池220具有第一表面220a以及與第一表面220a相對之第二表面220b，其結構例如係與第一實施例之結晶矽太陽電池110相同。在本實施例中，第一密封材料層230配置於第一結晶矽太陽電池220的第一表面220a上，第一透光基板240配置於第一密封材料層230上，其中第一密封材料層230位於第一透光基板240與第一結晶矽太陽電池220之間。換言之，第一透光基板240可透過第一密封材料層230而與第一結晶矽太陽電池220緊密地接合在一起。在本實施例中，第一密封材料層230之材質例如為乙酸乙烯酯(Ethylene Vinyl Acetate，EVA)、矽(Silicon)、低密度聚乙稀(Low density polyethylene，LDPE)、熱塑性安甲酸酯(Thermoplastic Urethane，TPU)，而第一透光基板240包括玻璃基板、塑膠基板。The first crystalline germanium solar cell 220 is disposed on one side 210a of the backing plate 210. For example, the first crystalline germanium solar cell 220 has a first surface 220a and a second surface 220b opposite the first surface 220a, the structure of which is, for example, the same as that of the first embodiment of the crystalline germanium solar cell 110. In this embodiment, the first sealing material layer 230 is disposed on the first surface 220a of the first crystalline germanium solar cell 220, and the first transparent substrate 240 is disposed on the first sealing material layer 230, wherein the first sealing material layer 230 is located between the first transparent substrate 240 and the first crystalline germanium solar cell 220. In other words, the first transparent substrate 240 can be closely bonded to the first crystalline tantalum solar cell 220 through the first sealing material layer 230. In this embodiment, the material of the first sealing material layer 230 is, for example, Ethylene Vinyl Acetate (EVA), Silicon, Low Density Polyethylene (LDPE), thermoplastic acetate. (Thermoplastic Urethane, TPU), and the first transparent substrate 240 includes a glass substrate and a plastic substrate.
本實施例之第二密封材料層250配置於第一結晶矽太陽電池220的第二表面220b上。詳言之，第二密封材料層250配置於第一結晶矽太陽電池220的第二表面220b與背板210之間。換言之，第一結晶矽太陽電池220透過第二密封材料層250而與背板210接觸並且緊密地接合在一起。在本實施例中，第二密封材料層250之材質例如為乙酸乙烯酯(Ethylene Vinyl Acetate，EVA)、矽(Silicon)、低密度聚乙稀(Low density polyethylene，LDPE)、熱塑性安甲酸酯(Thermoplastic Urethane，TPU)，。The second sealing material layer 250 of this embodiment is disposed on the second surface 220b of the first crystalline germanium solar cell 220. In detail, the second sealing material layer 250 is disposed between the second surface 220b of the first crystalline germanium solar cell 220 and the backing plate 210. In other words, the first crystalline germanium solar cell 220 is in contact with the backing plate 210 and closely joined together through the second sealing material layer 250. In this embodiment, the material of the second sealing material layer 250 is, for example, Ethylene Vinyl Acetate (EVA), Silicon, Low Density Polyethylene (LDPE), thermoplastic acetate. (Thermoplastic Urethane, TPU),.
第二結晶矽太陽電池260配置於背板210的另一側210b。舉例而言，第二結晶矽太陽電池260具有第三表面260a以及與第三表面260a相對之第四表面260b，其結構例如係與第一實施例之結晶矽太陽電池110相同。在本實施例中，第三密封材料層270配置於第二結晶矽太陽電池260的第三表面260a上。本實施例之第二透光基板280配置於第三密封材料層270上，其中第三密封材料層270位於第二透光基板280與第二結晶矽太陽電池260之間。換言之，第二透光基板280可透過第三密封材料層270而與第二結晶矽太陽電池260緊密地接合在一起。在本實施例中，第三密封材料層270之材質包括乙酸乙烯酯(Ethylene Vinyl Acetate，EVA)、矽(Silicon)、低密度聚乙稀(Low density polyethylene，LDPE)、熱塑性安甲酸酯(Thermoplastic Urethane，TPU)，而第二透光基板280包括玻璃基板、塑膠基板，但不以此為限。The second crystalline germanium solar cell 260 is disposed on the other side 210b of the backing plate 210. For example, the second crystalline germanium solar cell 260 has a third surface 260a and a fourth surface 260b opposite the third surface 260a, the structure of which is, for example, the same as that of the first embodiment of the crystalline germanium solar cell 110. In the present embodiment, the third sealing material layer 270 is disposed on the third surface 260a of the second crystalline germanium solar cell 260. The second transparent substrate 280 of the embodiment is disposed on the third sealing material layer 270 , wherein the third sealing material layer 270 is located between the second transparent substrate 280 and the second crystalline germanium solar cell 260 . In other words, the second transparent substrate 280 can be closely bonded to the second crystalline tantalum solar cell 260 through the third sealing material layer 270. In this embodiment, the material of the third sealing material layer 270 includes Ethylene Vinyl Acetate (EVA), Silicon, Low Density Polyethylene (LDPE), and thermoplastic benzoate ( Thermoplastic urethane (TPU), and the second transparent substrate 280 includes a glass substrate and a plastic substrate, but is not limited thereto.
本實施例之第四密封材料層290配置於第二結晶矽太陽電池260的第四表面260b上。換言之，第二結晶矽太陽電池260可透過第四密封材料層290與背板210接觸而緊密地接合在一起。在本實施例中，第四密封材料層290之材質包括乙酸乙烯酯(Ethylene Vinyl Acetate，EVA)、矽(Silicon)、低密度聚乙稀(Low density polyethylene，LDPE)、熱塑性安甲酸酯(Thermoplastic Urethane，TPU)。The fourth sealing material layer 290 of the present embodiment is disposed on the fourth surface 260b of the second crystalline germanium solar cell 260. In other words, the second crystalline germanium solar cell 260 can be tightly bonded together through the fourth sealing material layer 290 in contact with the backing plate 210. In this embodiment, the material of the fourth sealing material layer 290 includes Ethylene Vinyl Acetate (EVA), Silicon, Low Density Polyethylene (LDPE), and thermoplastic benzoate ( Thermoplastic Urethane, TPU).
值得一提的是，由於本實施例之太陽電池模組200除了包括受光面220a朝上之第一結晶矽太陽電池220外，還包括受光面260a朝下之第二結晶矽太陽電池260。因此，本實施例之太陽電池模組200除了可利用第一結晶矽太陽電池220吸收由太陽電池模組200上方入射之入射光線L外，更可利用第二結晶矽太陽電池260吸收由其他方向入射至太陽電池模組200中的光線L’，從而提高本實施例之太陽電池模組200的光電轉換效率。It is to be noted that, in addition to the first crystalline germanium solar cell 220 having the light receiving surface 220a facing upward, the solar cell module 200 of the present embodiment further includes a second crystalline germanium solar cell 260 with the light receiving surface 260a facing downward. Therefore, the solar cell module 200 of the present embodiment can absorb the incident light L incident from above the solar cell module 200 by using the first crystallization solar cell 220, and can be absorbed by the second crystallization solar cell 260 by other directions. The light L' incident on the solar cell module 200 increases the photoelectric conversion efficiency of the solar cell module 200 of the present embodiment.
本實施例之太陽電池模組200可進一步地包括外框310，其中背板210、第一結晶矽太陽電池220、第一密封材料層230、第二密封材料層250、第一透光基板240、第二結晶矽太陽電池260、第三密封材料層270、第四密封材料層290以及第二透光基板280係組裝於外框310內。本實施例之外框310可為口字型之框體，其具有開口310a，以將第一結晶矽太陽電池220以及第二結晶矽太陽電池260之受光面暴露。The solar cell module 200 of the present embodiment may further include an outer frame 310, wherein the back plate 210, the first crystalline germanium solar cell 220, the first sealing material layer 230, the second sealing material layer 250, and the first transparent substrate 240 The second crystalline germanium solar cell 260, the third sealing material layer 270, the fourth sealing material layer 290, and the second transparent substrate 280 are assembled in the outer frame 310. The outer frame 310 of the present embodiment may be a mouth-shaped frame having an opening 310a for exposing the light-receiving surfaces of the first crystalline germanium solar cell 220 and the second crystalline germanium solar cell 260.
如圖5所示，本實施例之太陽電池模組200可進一步包括反射器320以及旋轉機構330。旋轉機構330連接於反射器320與外框310之間，以改變反射器320與第二結晶矽太陽電池260之間的相對位置。舉例而言，當入射光線L入射的方向改變時，可藉由旋轉機構330使第一結晶矽太陽電池220之第一表面220a(即受光面)與入射光線L入射的方向垂直，而使第一結晶矽太陽電池220可接收到較多的光線。另一方面，藉由旋轉機構330可調整反射器320與第二結晶矽太陽電池260的相對位置，而使以其他方向傳遞之入射光線L’可被反射器320反射，進而被第二結晶矽太陽電池260所吸收。如此一來，各種傳遞方向之光線便可進入太陽電池模組200中，進而為其所運用，從而提高了太陽電池模組200的光電轉換效率。As shown in FIG. 5, the solar cell module 200 of the present embodiment may further include a reflector 320 and a rotating mechanism 330. The rotating mechanism 330 is coupled between the reflector 320 and the outer frame 310 to change the relative position between the reflector 320 and the second crystalline tantalum solar cell 260. For example, when the incident direction of the incident light ray L is changed, the first surface 220a (ie, the light receiving surface) of the first crystallization solar cell 220 may be perpendicular to the incident direction of the incident ray L by the rotating mechanism 330. A crystalline germanium solar cell 220 can receive more light. On the other hand, the relative position of the reflector 320 and the second crystalline germanium solar cell 260 can be adjusted by the rotating mechanism 330, so that the incident light L' transmitted in other directions can be reflected by the reflector 320, and then by the second crystal. The solar cell 260 absorbs. In this way, light of various directions of transmission can enter the solar cell module 200 and be used thereby, thereby improving the photoelectric conversion efficiency of the solar cell module 200.
综上所述，本發明之太陽電池模組藉由在其上下兩端皆設置太陽電池，而可有效地接收外界光線，進而提升太陽電池模組的光電轉換效率。此外，當外界光線的傳遞方向改變時，本發明之太陽電池模組可藉由旋轉機構及反射器，使外界光線有效地被太陽電池接收。如此一來，即使外界光線之傳遞方向改變，太陽電池模組仍可具有高光電轉換效率。In summary, the solar cell module of the present invention can effectively receive external light by providing solar cells at both upper and lower ends thereof, thereby improving the photoelectric conversion efficiency of the solar cell module. In addition, when the direction of transmission of external light changes, the solar cell module of the present invention can effectively receive external light by the solar cell by means of a rotating mechanism and a reflector. In this way, the solar cell module can have high photoelectric conversion efficiency even if the direction of transmission of external light changes.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，當可作些許之更動與潤飾，故本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.
100、200．．．太陽電池模組100, 200. . . Solar battery module
110、110’、220、260．．．結晶矽太陽電池110, 110', 220, 260. . . Crystalline solar cell
110a、110b、220a、220b、260a、260b．．．表面110a, 110b, 220a, 220b, 260a, 260b. . . surface
112．．．p-n接合半導體層112. . . P-n bonding semiconductor layer
112a、112b．．．表面112a, 112b. . . surface
114a、114b．．．保護層114a, 114b. . . The protective layer
114’、114”．．．開口114’, 114”...open
114c．．．上表面114c. . . Upper surface
114d．．．光學微結構114d. . . Optical microstructure
114e．．．反射層114e. . . Reflective layer
116．．．電極116. . . electrode
120、140、230、250、270、290．．．密封材料層120, 140, 230, 250, 270, 290. . . Sealing material layer
130、240、280．．．透光基板130, 240, 280. . . Light transmissive substrate
150．．．薄膜太陽電池150. . . Thin film solar cell
150a．．．受光面150a. . . Light receiving surface
160、310．．．外框160, 310. . . Outer frame
160a、310a．．．開口160a, 310a. . . Opening
170、320．．．反射器170, 320. . . reflector
180、330．．．旋轉機構180, 330. . . Rotating mechanism
210．．．背板210. . . Backplane
210a、210b．．．背板的一側210a, 210b. . . One side of the back panel
L、L’．．．光線L, L’. . . Light
圖1、圖3、圖4、圖5為本發明一實施例之太陽電池模組。1, 3, 4, and 5 illustrate a solar cell module according to an embodiment of the present invention.
圖2A、圖2B為本發明一實施例之結晶矽太陽電池。2A and 2B show a crystalline germanium solar cell according to an embodiment of the present invention.
100．．．太陽電池模組100. . . Solar battery module
110．．．結晶矽太陽電池110. . . Crystalline solar cell
110a、110b．．．表面110a, 110b. . . surface
120、140．．．密封材料層120, 140. . . Sealing material layer
130．．．透光基板130. . . Light transmissive substrate
150．．．薄膜太陽電池150. . . Thin film solar cell
150a．．．受光面150a. . . Light receiving surface
160．．．外框160. . . Outer frame
160a．．．開口160a. . . Opening
L、L’．．．光線L, L’. . . Light
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100108115A TWI553890B (en) | 2011-03-10 | 2011-03-10 | Photovoltaic cell module |
| CN2011102224342A CN102280507B (en) | 2011-03-10 | 2011-07-27 | Solar cell module |
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| TW100108115A TWI553890B (en) | 2011-03-10 | 2011-03-10 | Photovoltaic cell module |
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| TW201238062A TW201238062A (en) | 2012-09-16 |
| TWI553890B true TWI553890B (en) | 2016-10-11 |
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| TW100108115A TWI553890B (en) | 2011-03-10 | 2011-03-10 | Photovoltaic cell module |
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| CN (1) | CN102280507B (en) |
| TW (1) | TWI553890B (en) |
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| CN104600140B (en) * | 2015-01-27 | 2017-03-29 | 江阴市广业光电科技有限公司 | A kind of compound high power solar components of lightweight |
| CN106206823B (en) * | 2016-08-26 | 2017-07-14 | 江苏东鋆光伏科技有限公司 | It is a kind of to be used to improve reflective membrane of cell piece generated output and preparation method thereof |
| WO2019214061A1 (en) * | 2018-05-08 | 2019-11-14 | 北京汉能光伏投资有限公司 | Solar cell module and solar photoelectric curtain wall |
| CN110021675B (en) * | 2019-04-17 | 2021-03-23 | 京东方科技集团股份有限公司 | Solar cell, preparation method thereof and electric equipment |
Citations (5)
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|---|---|---|---|---|
| US5458694A (en) * | 1992-04-15 | 1995-10-17 | Picogiga Societe Anonyme | Multispectral photovoltaic component comprising a stack of cells, and method of manufacture |
| US20070240758A1 (en) * | 2006-04-14 | 2007-10-18 | Thomas Spartz | Double-sided solar module |
| US20080257399A1 (en) * | 2007-04-19 | 2008-10-23 | Industrial Technology Research Institute | Bifacial thin film solar cell and method for making the same |
| US20090151769A1 (en) * | 2007-12-14 | 2009-06-18 | Corbin John C | Device and system for improved solar cell energy collection and solar cell protection |
| US20100059102A1 (en) * | 2007-04-20 | 2010-03-11 | Sanyo Electric Co., Ltd. | Solar cell module |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4200472A (en) * | 1978-06-05 | 1980-04-29 | The Regents Of The University Of California | Solar power system and high efficiency photovoltaic cells used therein |
| EP1659640A1 (en) * | 2004-11-19 | 2006-05-24 | STMicroelectronics S.r.l. | Plastic film supported single crystal silicon photovoltaic cell structure and method of fabrication |
-
2011
- 2011-03-10 TW TW100108115A patent/TWI553890B/en not_active IP Right Cessation
- 2011-07-27 CN CN2011102224342A patent/CN102280507B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5458694A (en) * | 1992-04-15 | 1995-10-17 | Picogiga Societe Anonyme | Multispectral photovoltaic component comprising a stack of cells, and method of manufacture |
| US20070240758A1 (en) * | 2006-04-14 | 2007-10-18 | Thomas Spartz | Double-sided solar module |
| US20080257399A1 (en) * | 2007-04-19 | 2008-10-23 | Industrial Technology Research Institute | Bifacial thin film solar cell and method for making the same |
| US20100059102A1 (en) * | 2007-04-20 | 2010-03-11 | Sanyo Electric Co., Ltd. | Solar cell module |
| US20090151769A1 (en) * | 2007-12-14 | 2009-06-18 | Corbin John C | Device and system for improved solar cell energy collection and solar cell protection |
Also Published As
| Publication number | Publication date |
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| TW201238062A (en) | 2012-09-16 |
| CN102280507B (en) | 2013-07-31 |
| CN102280507A (en) | 2011-12-14 |
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