Photovoltaic vacuum window for realizing full-solar spectrum management

Abstract

The invention provides a photovoltaic vacuum window for realizing full-solar spectrum management. The photovoltaic vacuum window comprises a vacuum glass layer, a photovoltaic generation layer and a self-cleaning function layer orderly arranged from inside to outside; the photovoltaic generation layer comprises a first transparent electrode, a photovoltaic film and a second transparent electrode arranged in order; the photovoltaic film is a transmitting photovoltaic film; and the self-cleaning function layer comprises the third glass and a nanometer photocatalytic film orderly arranged from inside to outside. Through the photovoltaic vacuum window provided by the invention, the transmitting photovoltaic film is used as the generation material of the photovoltaic generation layer, and the infrared ray in the solar spectrum is used for generating, so that the visible light in the solar spectrum can penetrate the photovoltaic vacuum window; and meanwhile, the nanometer photocatalytic filmis used for absorbing the ultraviolet in the solar spectrum to perform the self-cleaning, thereby realizing the sufficient conversion and utilization of the full-spectrum of the sunlight.

Description

technical field [0001] The invention relates to the technical field of functional building materials, in particular to a photovoltaic vacuum window for realizing full solar spectrum management. Background technique [0002] At present, as people's awareness of the environment, energy and sustainable development issues has risen to a strategic level, solar energy, as a sustainable and clean energy, has received extensive and in-depth research on its efficient and comprehensive utilization. Solar radiation includes the visible light part (spectral range of 400-700nm) that can be directly used for indoor lighting of buildings, and also contains a large number of infrared spectral components. Making full use of this part of energy is an effective way to use solar radiation. [0003] On the other hand, people's requirements for building energy saving are getting higher and higher. According to statistics, the heat lost through the windows is close to 50% of the energy consumptio...

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Problems solved by technology

[0005] However, the above-mentioned various schemes only consider simply combining the photovoltaic film layer with the vacuum glass in structure, but do not properly manage the incident sunlight energy, resulting in unreasonable absorption bands of the photovoltaic layer, low conversion efficiency, and high heat dissipation. The loss is serious, the heat dissipation problem and the integration of the components cannot be taken into account, resulting in low power generation efficiency and high temperature of the corresponding products in practical applications (poor heat dissipation, poor living experience)

At the same time, since the photovoltaic film layer absorbs a large amount of solar radiation in the visible light range, resulting in low glass transmittance and poor lighting, it is not suitable for building windows and automobile windows, which limits its application range, and also brings relatively low safety and cost. various advanced issues

Even if it is only applied to the building curtain wall, a large amount of energy in the solar radiation is finally converted into heat, the energy grade is low, it is difficult to effectively use, and the cleaning of the curtain wall is also very inconvenient

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