EuYAG

EuYAG refers to Europium-doped Yttrium Aluminum Garnet. It is a type of phosphor material commonly used in lighting and display applications. The chemical formula for Yttrium Aluminum Garnet is Y3Al5O12. When europium ions (Eu) are incorporated into the YAG crystal lattice, they act as activators, emitting light when excited by an energy source.

The primary emission color of EuYAG depends on the specific oxidation state of the europium ion. Europium in the trivalent state (Eu3+) typically emits red light, while europium in the divalent state (Eu2+) emits green or blue light depending on the host material and excitation conditions. In the context of EuYAG, europium is often used to produce red phosphors.

EuYAG phosphors are known for their good thermal stability and high luminescence efficiency. These properties make them suitable for use in applications such as solid-state lighting, where they are combined with blue light-emitting diodes (LEDs) to generate white light. The red emission from EuYAG complements the blue light, allowing for a broad spectrum that is perceived as white. They are also found in some older cathode ray tube (CRT) displays and in specialized applications requiring specific emission wavelengths. The synthesis of EuYAG typically involves high-temperature solid-state reactions.