Boron Phosphide Used As Semiconductor Material And Optical Material

What property does boron phosphide have?

Due to different preparation methods, boron phosphide Has red transparent or dark red transparent crystals, black amorphous materials, or soft brown substances. The chemical properties are stable and boron-phosphide does not dissolve in concentrated hydrochloric or sulfuric acids, nor hydrofluoric or hydrofluoric acids.

Boron phosphide shares many properties with refractory substances. It has similar properties to diamond and boron-nitride, and is harder than silicon carbide. It can have an anti-oxidation property even when heated to a temperature between 800 and 10,000 degrees Celsius in the atmosphere. When boron is heated, the phosphorus in it disappears and a light grey residue forms. Boron-phosphide catches fire in a cold environment in chlorine and in a slightly warm state in bromine. It can be easily decomposed in red heat by most metals.

How is boron phosphide used?

The boron film is better than germanium carbide in terms of mechanical properties. It also has a higher adhesion to diamond and is easier to deposit on large areas. In comparison with germanium carbide boron has better mechanical characteristics; in comparison with diamond, thin boron layer is better adherent and more conducive to deposition over large areas; and compared to DLC boron has lower internal stress. In order to reduce the internal stress, boron is a good material for anti-reflection films for infrared windows on high-speed aircraft.

Researchers are increasingly appreciating the protective properties of boronphosphide on other components exposed to harsh environments. Boron-phosphide film is the perfect material for the corrosion resistance of the infrared glass of the submarine telescope. Once the telescope window is out at sea, it will always be immersed in water. The window should not only have a high transmittance in order to maintain the sensitivity of the photoelectric sensor, but it must also resist corrosion caused by chemicals found in seawater. The boron film is corrosion resistant and has good chemical resistance. It can protect the window from seawater erosion, ensuring the original optical performance.

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