Ce3doped

Ce3doped refers to materials in which trivalent cerium ions (Ce3+) are incorporated into a host lattice to create luminescent centers. Cerium is introduced by substituting for host cations, allowing Ce3+ to act as an activator in phosphors and scintillators. The luminescence arises from allowed 5d-4f transitions within the Ce3+ ion, which generally yield bright emission with fast decay times. The exact emission color and efficiency depend on the crystal field of the host lattice and the local environment around the Ce3+ ion.

Common Ce3+-doped materials include oxide hosts such as garnets (for example, Y3Al5O12:Ce, YAG:Ce, and Lu3Al5O12:Ce, LuAG:Ce), yttrium aluminum oxide (YAP:Ce), and calcium or lutetium silicates (such as Lu2SiO5:Ce, LSO:Ce). These materials are widely studied as phosphors for visible light applications and as scintillators for radiation detection. Their emission typically falls in the yellow to green region, with color and brightness influenced by host composition and Ce3+ concentration.

Applications are broad: Ce3+-doped phosphors are used in white light-emitting diodes (phosphor converted LEDs), imaging and medical diagnostics, and high-energy physics detectors. Synthesis methods include solid-state reaction, sol-gel, hydrothermal, and combustion approaches; processing conditions and dopant levels are optimized to maximize brightness while minimizing concentration quenching and thermal quenching.

Overall, Ce3+-doped materials are valued for fast, bright luminescence and versatility across lighting and radiation-detection technologies.