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Hitachi Chemical will begin mass production of wavelength conversion particles (WCP), which can be applied to EVA sealants for crystalline silicon components, and are said to increase conversion efficiency (relatively) by up to 2.2% over standard sealants.
The company says that material manufacturers mix fluorescent materials distributed in acrylic resin particles with EVA encapsulation sheets to obtain short wavelength light (ultraviolet light) and convert it to long wavelength light (visible light) for existing films The durability of the formula has no effect.
By complying with JIS C8919 outdoor tests for battery and module output power test methods, it is said that the efficiency is greatly improved over conventional photovoltaic encapsulants.
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