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シランカップリング剤の太陽光発電フィルムへの応用

概要

In the field of renewable energy, photovoltaic (PV) films—which are utilized in solar cells to transform sunlight into electricity—are essential. Among the many variables that affect PV film performance and lifetime is coupling agent usage. Coupling agents are compounds that are applied to PV films to enhance the adhesion between various materials. Nevertheless, aging issues brought on by the conventional usage of coupling agents in photovoltaic films might undermine the overall durability and efficiency of solar cells. The purpose of this paper is to examine the aging processes linked to the traditional usage of coupling agents in PV films and to provide some insight into possible remedies for these problems.

 

The Function of Coupling Agents in Photovoltaic Films

Adhesion promoters, or coupling agents, are chemical substances that improve the compatibility of different materials in photovoltaic films. Their primary purpose is to increase the interfacial adhesion between the substrate, electrode, and active layer in the solar system. Coupling agents provide effective charge transfer and lessen the chance of delamination or detachment inside the film by encouraging strong bonding.

 

Issues with Aging Relating to Conventional Coupling Agents

Conventional coupling agents, albeit beneficial in photovoltaic films, can cause aging processes that impair solar cells’ long-term efficiency. Among these age-related issues are:

a) Chemical deterioration: When conventional coupling agents are exposed to heat, moisture, and UV light over time, they may experience chemical deterioration. The integrity of the PV film may be jeopardized by this deterioration, which may cause them to lose their adhesive qualities.

b) Decreased Mechanical Strength: As coupling agents age, the interfacial adhesion between the various layers of the PV film may become less strong. This weakening of the mechanical strength might cause layer separation, cracking, or delamination, which would lower the solar cell’s overall efficiency.
c) Increased Series Resistance: The PV film’s series resistance may rise as a result of coupling agent aging. The power output of the solar cell is decreased by this resistance, which obstructs the flow of electric current.

Mitigation measures

Researchers have suggested a number of mitigation measures to solve the aging difficulties related to typical coupling agents in photovoltaic films, including:

a) Creation of New Coupling Agents: Researchers are working hard to find substitute coupling agents with better stability and durability. These new agents are made to endure hard environmental conditions and maintain their adhesive qualities for long stretches of time.

The majority of consumers use Coaces photovoltaic packaging film silane grafting additives because of their strong resistivity, good fluidity, low crystal point, high grafting rate, and high transparency!
Silane-grafted photovoltaic film additives provide several advantages and enhanced performance for solar systems. Their unique characteristics, including as improved surface energy, adhesion, and interfacial properties, contribute to increased power conversion efficiency, durability, and resistance to the environment. Silane-grafted PV film additives have the potential to revolutionize the PV industry since they work well with a variety of manufacturing techniques and end uses.

 

 

b) Protective Coatings: The coupling agents can be protected from environmental deterioration by applying protective coatings to the PV film. These coatings serve as a defense against aging-accelerating agents like as moisture and UV light.

c) Encapsulation Techniques: Encapsulation techniques entail encasing the PV film in a polymer encapsulant or other protective barrier. This method protects the coupling agents from deterioration and stops hazardous materials from penetrating the film, increasing its longevity.

 

Although coupling agents play a crucial role in improving the adherence of various materials in solar films, their conventional application may exacerbate aging issues. A few of the aging processes connected to these agents are increased series resistance, decreased mechanical strength, and chemical deterioration. Ongoing investigation and the creation of novel coupling agents, in addition to the application of protective coatings and encapsulating methods, present viable approaches for reducing these problems, nevertheless. The efficiency, dependability, and longevity of photovoltaic films can be increased by resolving the aging issues brought on by coupling agents, thereby expanding the potential applications of solar energy.

 

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