What are High Purity Alumina Advantages as an LED phosphor

High purity alumina has a wide range of applications in the LED lighting industry. For example, sapphire crystals produced using high-purity alumina are widely used as substrate materials for LED chips. In addition, high-purity alumina can also be used as a phosphor in LED lighting.

So what are high purity alumina application advantages as an LED phosphor?

High purity alumina powder is an important basic material for the preparation of tri-color rare earth aluminate phosphors for LED lighting and long afterglow phosphors. Because the fluorescent lamp made of three-primary fluorescent powder is twice as effective as the fluorescent lamp made of halogen powder, 20 watts can be as bright as 40 watt fluorescent lamps, so it is called energy-saving lamp.

1. High-purity alumina reflects the ultraviolet light transmitted through the phosphor layer, so that it can continue to excite the phosphor and improve the luminous efficiency.
2. Block the diffusion of mercury, reduce the amount of mercury used, and extend the service life.
3. As a binder, it can improve the bonding strength between the phosphor and the glass tube, so that the phosphor does not fall off.