Bright white light emission from lanthanide oxide LaGdO for LED lighting by Bi to Eu energy transfer.

Phosphors with intrinsic white light emission are of great potential in constructing high-quality white LEDs (WLEDs). In this work, we propose the use of energy transfer from Bi to Eu ions for white light emission. A unique Bi-activated phosphor LaGdO (LGO):Bi was generated using the conventional high-temperature solid-state process.

Well-Performed Green Phosphor BaYSiO:Ce,Tb with High Quantum Efficiency and Thermal Stability.

For Tb-doped green phosphors, the energy transfer from Ce to Tb can largely enhance the absorption of excitation; however, obtaining phosphors that exhibit both high quantum efficiency and thermal stability continues to pose a significant challenge. Herein, we established a paradigm to achieve novel silicate BaYSiO (BYSO):Ce,Tb. The near-ultraviolet light efficiently excites the BYSO:Ce material, causing it to emit light at a wavelength of 408 nm.