Yttrium Aluminum Garnet (YAG) phosphor powder, chemically formulated as Y₃Al₅O₁₂ doped with cerium ions (Ce³⁺), is a high-performance yellow-emitting phosphor widely used in LED lighting and display technologies. This phosphor efficiently converts blue light, typically from 450 nm LED chips, into bright yellow light with an emission peak in the 530–560 nm range. Thanks to its robust crystal structure and reliable synthesis process, YAG phosphor offers excellent thermal and chemical stability, making it a preferred choice for energy-efficient lighting solutions.
YAG phosphor powder is renowned for its outstanding luminescent properties, including high quantum efficiency, excellent color rendering, and long-term operational stability. When excited by blue or near-ultraviolet light, it emits a vivid yellow light that can be combined with other phosphors to produce white light with customizable color temperatures and enhanced color fidelity.
This phosphor is extensively used in LED packages targeting applications that demand consistent brightness and color quality, such as human-centric lighting that supports circadian rhythms, general illumination, and advanced display backlighting. Its compatibility with high-performance color filters enables LCD manufacturers to achieve wider color gamuts and more realistic images.
Key Features
Spectrum
YAG phosphor powder is available in various particle sizes and purity grades to meet specific manufacturing requirements. Its stable performance under high operating temperatures makes it suitable for demanding LED applications where longevity and color consistency are critical.
Model |
Color |
Chromaticity Coordinates CIE 1931 |
Spectral Performance |
||
x |
y |
Chip Excitation Wavelength (nm) |
Peak Wavelength λp (nm) |
||
LMY-4155-C |
light yellow |
0.416 |
0.554 |
450-470 |
532 |
LMY-4255-C |
light yellow |
0.426 |
0.548 |
450-470 |
534 |
LMY-4255-CC |
light yellow |
0.426 |
0.548 |
450-470 |
534 |
LMY-4354-C |
yellow |
0.436 |
0.546 |
450-470 |
538 |
LMY-4453-C |
yellow |
0.446 |
0.533 |
450-470 |
543 |
LMY-4453-CC |
yellow |
0.446 |
0.533 |
450-470 |
542 |
LMY-4749-C |
dark yellow |
0.471 |
0.493 |
450-470 |
552 |
LMY-4749-CC |
dark yellow |
0.471 |
0.493 |
450-470 |
551 |
LMY-4850-C |
dark yellow |
0.486 |
0.504 |
450-470 |
553 |
LMY-4949-C |
dark yellow |
0.498 |
0.493 |
450-470 |
558 |
LMY-5049-C |
dark yellow |
0.502 |
0.489 |
450-470 |
563 |
LMY-4255H-B |
light yellow |
0.425 |
0.551 |
450-470 |
538 |
LMY-4255H-C |
light yellow |
0.425 |
0.551 |
450-470 |
538 |
LMY-4354H-B |
yellow |
0.436 |
0.543 |
450-470 |
540 |
LMY-4453H-B |
yellow |
0.447 |
0.535 |
450-470 |
543 |
LMY-4453H-C |
yellow |
0.447 |
0.535 |
450-470 |
543 |
LMY-4652H-B |
dark yellow |
0.462 |
0.523 |
450-470 |
548 |
LMY-4453SH-C |
yellow |
0.437 |
0.542 |
450-470 |
539 |
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