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Panel classification and light transmittance of photovoltaic curtain wall

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Panel classification and light transmittance of photovoltaic curtain wall
Latest company news about Panel classification and light transmittance of photovoltaic curtain wall

From the perspective of power generation materials for curtain wall panels, there are films and crystalline silicon. The crystalline silicon photovoltaic curtain wall is divided into monocrystalline silicon and polycrystalline silicon, and the double glass interlayer is the main manifestation. In view of the power generation efficiency and the current situation and trend of the industry development, the early application of crystalline silicon photovoltaic curtain wall is mainly polycrystalline silicon. At present, the mainstream mode of crystalline silicon photovoltaic curtain wall is monocrystalline silicon.

 

The thin-film photovoltaic curtain wall is the most mainstream application mode. From the perspective of power generation materials, it can be further subdivided into cadmium telluride, copper indium gallium selenium, perovskite and other sub categories. In view of the flexibility and comprehensive factors such as color, light transmission, texture, weak light, customization, etc., at present, the cadmium telluride thin-film photovoltaic curtain wall is the most widely used, most suitable for the scene, and capable of large-scale commercial mass production.

 

From the perspective of light transmission, it can be classified into light transmission type, semi light transmission type, non light transmission type, etc. The application of crystalline silicon photovoltaic curtain wall in the direction of glass curtain wall, due to the functional requirements of light transmission and even perspective, is usually presented by replacing the outer glass of glass curtain wall with double glass sandwich modules. Because crystalline silicon cells do not have light transmission, the light transmission of double glass sandwich modules comes from the gap between crystalline silicon cells (the width of the gap can be adjusted relatively flexibly). When the gap is wide, it will show a certain perspective effect. From the perspective of the overall effect of light transmission and perspective, due to the obvious characteristics of low light transmission and poor uniformity (the term "uniformity" is provided by the industry encyclopedia), it is appropriate to classify such products and applications as semi transparent photovoltaic curtain walls.

 

For the application of crystalline silicon photovoltaic curtain wall in the direction of solid wall of building exterior wall, because there is no need for light transmission function, usually manufacturers will carry out artistic treatment of color, texture and pattern in the interlayer of double glass sandwich module. This kind of application basically does not have light transmission and belongs to non light transmission photovoltaic curtain wall. The thin film photovoltaic curtain wall shows diversified characteristics in terms of light transmission. Take the cadmium telluride thin film as an example: the light transmission performance comes from the gap space when the power generation thin film is etched to form a battery string, which plays an important role in light transmission, perspective, light transmission and other properties. Due to the artistic treatment and personalized customization of color, texture, pattern, etc. according to the design requirements, it has produced a variety of manifestations such as light transmission, semi light transmission (or partial light transmission), and light consumption, which also makes the film photovoltaic curtain wall more widely used and more adaptable.

 

Thin film power generation materials also have technical routes and products based on metal plates. The light impermeability of metal plates determines that such photovoltaic curtain walls have the characteristics of non light transmission, which is only applicable to the application scenario of replacing the external skin of solid walls of building exterior walls.

 

To sum up, from the perspective of light transmittance, there are two types of crystalline silicon photovoltaic curtain walls: semi transparent and non transparent; There are three types of thin-film photovoltaic curtain walls: light transmitting, semi light transmitting and non light transmitting.

 

 

Pub Time : 2022-11-04 10:06:27 >> News list
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