Different methods of affecting the crystals are used. The most widespread ways for changing the color of the crystals are the following:
• Irradiation
• Implantation of ions
• Thermal treatment in different gaseous media
• Thermochemical treatment
In a number of cases the best results are obtained using a combination of the above methods.

Although there are lots substrates which are regarded as potential materials to replace Sapphire Substrate, it is still dominated in the substrates (for GaN LED growth) market, because of its reasonable price and relatively low mismatch. Zhongju is capable of processing substrates according to customer needs. Currently, our sapphire substrate productions ranges from 2 to 12 inches with high quality and accurate orientation.

crystal lens window

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