Most of the current solar panels are non-black and gray, monotonous in color, and they will change the appearance of the building when installed on the building. They are used in places where the demand for personalized design is high (such as the use of solar panels to supply electric energy.) Wait).
Fraunhofer Institute of Applied Optics and Precision Machinery has recently developed a surface coating technology for solar photovoltaic panels, which can provide various colors for solar photovoltaic panels, while improving the photoelectric conversion efficiency.
This transparent surface coating is only a few hundred nanometers thick and is mainly composed of zinc oxide and aluminum. It has electrical conductivity and its refractive index is smaller than that of silicon material. It can form a reflective layer and increase the efficiency of light entering the silicon solar panel, especially By adjusting the thickness of the transparent oxide conductive coating or adjusting its refractive index, the solar photovoltaic panel can be rendered unusable.
This technology has applied for patent protection. At present, researchers are conducting in-depth development and trying to use the “inkjet†process to develop a new process for forming a transparent conductive coating on silicon solar photovoltaic cell sheets to simplify the processing process, reduce cost processing, and meet more extensive use requirements.
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