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 …

Photon-upconverting nanoparticles (UCNPs) can be excited by near-infrared light and emit
visible light (anti-Stokes emission) which prevents autofluorescence and light scattering of …

Upconversion (UC) refers to nonlinear optical processes in which the sequential absorption
of two or more photons leads to the emission of light at shorter wavelength than the …

In recent years, new strategies for silica coating of inorganic nanoparticles and organic
nanomaterials, which differ from the classical methodologies, have emerged at the forefront …

Rare earth based nanostructures constitute a type of functional materials widely used and
studied in the recent literature. The purpose of this review is to provide a general and …

Any labeling with multicolor markers can be affected by the autofluorescence of biological
tissue due to the UV or blue light excitation sources, or the results are affected by …

An ecofriendly, magnetically retrievable amine-functionalized SiO2@ Fe3O4 catalyst was
successfully synthesized and affirmed by several physicochemical characterization tools …

Abstract Mit Upconversion (UC, Aufwärtskonversion) werden nichtlineare optische Prozesse
beschrieben, bei denen die aufeinander folgende Absorption von zwei oder mehr Photonen …

The unique luminescent properties exhibited by rare earth ion-doped upconversion
nanocrystals (UCNPs), such as long lifetime, narrow emission line, high color purity, and …

There has recently been a surge of interest in the luminescence of lanthanide (Ln3+) ions
doped in fluoride nanoparticles due to their potential for use in a number of diverse fields …