Eu Sensitization via Nonradiative Interparticle Energy Transfer Using Inorganic Nanoparticles.

Phosphors have been used successfully for both research and commercial applications for decades. Eu-doped materials are especially promising, because of their extremely stable, efficient, and narrow red emission lines. Although these emission properties are ideal for lighting applications, weak absorption in the blue spectral range has until now prevented the use of Eu-based phosphors in applications based on blue light-emitting diodes.