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What is gallium nitride?

Gallium nitride is an inorganic substance, the chemical formula GaN is a compound of nitrogen and gallium, which is a direct bandgap semiconductor, since 1990, commonly used in light-emitting diodes. This compound is similar in structure to…

What kind of substance is cadmium sulfide?

Cadmium sulfide is an inorganic substance with a chemical formula of CDs. There are two crystals, the α-form is a lemon yellow powder, and the β-form is an orange-red powder. It is not only slightly soluble in water and ammonia, but also s…