The trivalent europium ion (Eu 3+) is well known for its strong luminescence in the red
spectral region, but this ion is also interesting from a theoretical point of view. Due to the …

Luminescent materials, also called phosphors, are defined as solids that can absorb and
convert certain types of energy into radiation of light.(1) Among all kinds of phosphors, rare …

Lanthanide-doped inorganic nanoparticles possess superior physicochemical features such
as long-lived luminescence, large antenna-generated Stokes or anti-Stokes shifts, narrow …

Through the process of photon upconversion, trivalent lanthanide doped nanocrystals
convert long-wavelength excitation radiation in the infrared or near infrared region to higher …

Counterfeiting of valuable documents, currency and branded products is a challenging
problem that has serious economic, security and health ramifications for governments …

Upconversion luminescence (UCL) refers to nonlinear optical processes, which can convert
near-infrared photons to short-wavelength emission. Recent advances in nanotechnology …

This feature article highlights the recent advances on the chemical synthesis, surface
modification and applications of rare earth fluoride nano-/microcrysals. In the past decade …

Luminescent materials with the quantum efficiency (QE) higher than unity could be playing a
significant role in the progress of lighting industry and certain electronic display systems …

Trivalent lanthanide (Ln 3+) ions doped luminescent nanocrystals (NCs) of various
compositions, albeit most of their bulk counterparts have been well studied previously, have …

Amine-functionalized lanthanide-doped KGdF4 nanocrystals, synthesized via a facile one-
step solvothermal route by employing polyethylenimine as the surfactant and capping …