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  • Sapphire

    Sapphire (Sapphire, molecular formula Al2O3) single crystal is an excellent multifunctional material. It is resistant to high temperature, good thermal conductivity, high hardness, infrared transmission, and good chemical stability. It is also a versatile single crystal substrate material and is the substrate of choice for the current blue, violet and white light emitting diode (LED) and blue light laser (LD) industries.