Composite material adhesive film and preparation method thereof, and photovoltaic module structure and preparation method thereof
A composite material and photovoltaic module technology, applied in photovoltaic power generation, nanotechnology for materials and surface science, adhesives, etc., can solve problems such as refractive index mismatch, reduce reflection, improve absorption efficiency, and improve refractive index mismatch. matching effect
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[0092] In addition, the present invention also provides a method for preparing a composite film. The preparation method of the composite film provided by the present invention is preferably prepared by the preparation method, wherein the preparation method includes the steps of: providing inorganic nanoparticles and viscous polymer raw materials, and the inorganic nanoparticles are mixed with the viscous polymer raw materials to solidify to form the composite film, wherein the viscous polymer raw materials are used to provide viscous polymers, and the inorganic nano The particles are used to improve the refractive index of the composite film, and the prepared material of the composite film includes the adhesive polymer and the inorganic nanoparticles. As an example, the viscous polymer raw material includes any one of viscous polymer jelly and viscous polymer jelly precursor.
[0093] Specifically, the present invention also provides a method for preparing a composite material...
Embodiment 1
[0137] The film composed of ZrO2 nanoparticles and EVA is placed between the glass cover plate and the aluminum-backed field silicon solar cell instead of the traditional film, and the solar cell module is obtained after lamination. The schematic diagram is as follows Figure 8 As shown, it includes from top to bottom: anti-reflection layer 401, glass 402, composite film 403, SiN x / SiN x / SiO 2 Composite layer 404, silicon (Si) layer 405, aluminum layer 406, EVA layer 407, back plate 408, wherein, in this structure, the solar cell includes SiN x / SiN x / SiO 2 Composite layer 404, silicon (Si) layer 405 and aluminum layer 406, the entrance window material layer includes glass 402. The equivalent photocurrent density ( Figure 9 ) and electrical parameters such as the conversion efficiency of the component (Table 1). It can be seen that when the refractive index n=1.60, the photoelectric conversion efficiency of the module reaches the optimum value. Compared with the conv...
Embodiment 2
[0142] TiO 2 Nanoparticles and EVA composite adhesive film is placed between the glass cover plate and the double-sided monocrystalline silicon solar cell instead of the traditional adhesive film, and the solar cell module is obtained after lamination. The schematic diagram is as follows Figure 12 As shown, it includes from top to bottom: anti-reflection layer 501, glass 502, composite material adhesive film 503, SiN x / SiN x / SiO 2 Composite layer 504, silicon layer 505, SiN x / SiN x / SiO 2 Composite layer 506, composite material adhesive layer 507, glass 508, anti-reflection layer 509, wherein, in this structure, the solar cell includes SiN x / SiN x / SiO 2 Composite layer 504, silicon layer 505 and SiN x / SiN x / SiO 2 Composite layer 506 , the incident window layer includes glass 502 and glass 508 . The equivalent photocurrent density ( Figure 13 ) and electrical parameters such as conversion efficiency of the module (Table 2). It can be seen that when the ref...
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