Why are most solar photovoltaic panels black and blue?

Most common solar photovoltaic panels on the market are black and blue because these are the natural colors that silicon turns into during the manufacturing process. There are two main types of commercially available solar photovoltaic panels: monocrystalline silicon and polycrystalline silicon. Black monocrystalline silicon solar photovoltaic panels are better than blue polycrystalline silicon solar photovoltaic panels in terms of power generation efficiency.

So, can solar photovoltaic panels come in different colors?
Dyes and coatings can be used to change the color of solar photovoltaic panels, but also greatly reduce their efficiency in generating electricity. In fact, colored solar photovoltaic panels made in this way are 45% less efficient than standard blue or black ones, which may reduce the return on investment of solar photovoltaic systems and make consumers less willing to spend.

Pearlescent light adds color to photovoltaics
Pearlescent pigments not only ensure the power generation efficiency of solar photovoltaic panels, but also greatly meet consumers' personalized needs for color:

• Improve the light absorption performance of photovoltaic panels

Pearlescent pigments can change the surface reflection and transmission characteristics of photovoltaic panels by adjusting their color and particle size. By adding pearlescent pigments, the ability of photovoltaic panels to absorb sunlight can be increased and the photoelectric conversion efficiency can be improved.

• Increase the appearance and beauty of photovoltaic panels

Pearlescent pigments have unique optical effects. The free choice of silver, white, yellow, red and other tones can give photovoltaic panels different colors and visual effects. This is particularly important for building-integrated photovoltaic systems, landscape engineering and exterior design, providing greater design flexibility and aesthetics.

• Reduce reflection loss of photovoltaic panels
The reflection loss on the surface of the photovoltaic panel will cause part of the light to be unable to be absorbed, affecting the photoelectric conversion efficiency. Pearlescent pigments can increase the surface roughness of photovoltaic panels. Reduce reflection loss and improve energy utilization. Sunlight is filtered through pearlescent pigment particles. Regardless of the color effect selected, the surface layer of the solar photovoltaic panel can convert approximately 95-98% of the incident light into electrical energy.

• Enhance thermal stability of photovoltaic panels
Pearlescent pigments have a certain heat absorption ability and can absorb the heat of sunlight to a certain extent and reduce the temperature rise of photovoltaic panels. This helps to improve the thermal stability of photovoltaic panels and reduce the impact of temperature on photovoltaic efficiency. Kuncai pearlescent pigments are based on highly transparent custom-made synthetic mica flakes, covered with a very thin metal oxide surface layer, forming color reflection and giving solar photovoltaic panels a unique aesthetic experience.