| 摘要 |
Light emitting devices that include an energy source configured to generate light energy and an up-conversion phosphor configured to emit light having a wavelength shorter than that of the light energy generated from the energy source are provided. The up-conversion phosphor comprises an ordered oxyfluoride compound having a formula: A3-3a/2RaMO4-delta1-w'F1-delta2-w''Nw. Methods are also generally disclosed for up-converting light energy. |
